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Science for Kids/Questions Answered by Expert Ralph Salier-Hellendag
| Subject | Date Asked |
| Earth's magnetic field | 1/20/2012 |
| Q: If you were to take a metal object to Earth's magnetic poles, how would the magnetic field affect ... A: This is a great question. The Earth's magnetic poles are not like a bar magnet but very similar on ... | |
| Physics | 1/18/2012 |
| Q: Can you please help me find a do-at-home experiment for the topic of torque, for I have not yet ... A: Torque is is the tendency of a force to rotate an object about an axis,[1] fulcrum, or pivot. Just ... | |
| Physics | 1/12/2012 |
| Q: .!! I am Shruti from India. I am in seventh standard and I am supposed to make a simple electric ... A: The easiest model to make is an electro-magnet. For this you will need a battery, a nail made of ... | |
| physics | 1/11/2012 |
| Q: my daughter is doing science fair project on "balloon powered rocket car" i would like to know if ... A: Are you helping your daughter to do the project or are you doing it for her? Have your daughter ... | |
| physics | 1/11/2012 |
| Q: I am doing my science fair project on "skewer through a balloon" I chose my problem to be :Does ... A: would you please send me your teacher's email address. Oh, Don't worry, I won't say any thing but I ... | |
| c60 molecule | 1/9/2012 |
| Q: I have a very confusing chemistry project. I must build a 3D structure of c60 molecule. I need some ... A: C-60 is a form of Carbon also called the "buckyball". Take a look at the web site below for more ... | |
| science chemistry | 1/6/2012 |
| Q: i am doing a science project on which stain remover works better. i dot know any ingriediants A: Each stain remover has similar ingredients. Some have enzymes while others have strong oxidizers. ... | |
| science exhibition | 12/19/2011 |
| Q: sir, i am having an exhibition in my school and i need a working model based on the subject ... A: Since I do not know what you have access to here are several ideas: an electro-magnet using a nail ... | |
| Chemistry | 12/16/2011 |
| Q: What happens if there is an incomplete reaction between zinc and sulfuric acid? and by is the ... A: Your question is a bit confusing but in an incomplete reaction, some of the Zinc is left over while ... | |
| Optical Illusions | 12/10/2011 |
| Q: I am doing a science fair project and my topic is on optical illusions. Would you happen to know if ... A: Optical illusions are not really differentiated between male and female observers. It is a factor ... | |
| What to write in journal? | 12/6/2011 |
| Q: I am doing the experiment on the skewers inserted into the balloons. I am not sure exactly what to ... A: A journal is used to write down your observations and process. So an example might look like this: ... | |
| Science fair project 4th gd level, due 12/01/11 | 11/29/2011 |
| Q: how can my son Chris know If sound travels best through SOlids, liquids or gases? we only got ... A: You will need a tuning fork. These are available from most music stores. Then you need a tuner ... | |
| Electromagnetism | 11/23/2011 |
| Q: Any easy woking model on electromagnetism which can be completed in 3 days for science project for ... A: I think you need to do a better job of planning your time! You can make an electro-magnet. This ... | |
| physics model | 11/16/2011 |
| Q: sir, i urgently have to submit my physics model, iam in 11th class, so can you please suggest me a ... A: You need to practice better time management. This is especially true if you are planning to go to ... | |
| leaf color | 11/14/2011 |
| Q: please explain why leaves change color in the fall, and what colors can leaves be other than red, ... A: The green in leaves is because of chlorophyll in the leaves of the plant. Chlorophyll is what helps ... | |
| science fair prodjuct. Voltage Meter | 11/11/2011 |
| Q: I am doing a science fair product and I'm in 5th grade but i need help with using a voltage meter ... A: Fruits and Vegies are not electrically charged but they do contain "electrolytes" which allows ... | |
| Help with Chemistry | 11/9/2011 |
| Q: I am a senior in an advanced Chemistry class. We are in the process of doing individual planning ... A: The problem will be all of the other stuff in the brine including spices and other potential ... | |
| science fair project re: milk fat | 11/1/2011 |
| Q: we are conducting a 4th grade science fair project and trying to determine if the percentage of milk ... A: You have several problems with this experiment. First of all, the milk you are using is ... | |
| Science Fair Project on Stains | 10/29/2011 |
| Q: Why is coffee said to be staining? What is in it that makes it staining? Why is grape juice said to ... A: The liquids you have mentioned all have solids suspended in the liquid. That is what gives these ... | |
| Science Fair | 10/29/2011 |
| Q: Do you think this is a winning science fair topic/Which Brand of Carpet is Most “Stain Resistant”? ... A: You will need to find out what the different carpet companies do to protect their carpet products. ... | |
| science | 10/24/2011 |
| Q: 1. why does the glass break up when the water freeze. how does it relate to the theory of kinetics ... A: As far as electricity is concerned, when a bird lands on a wire, it is usually just one. But if ... | |
| Science Fair project | 10/17/2011 |
| Q: I am working on a science fair project which compares solar power, hydro power and wind power. I am ... A: They can't really be compared since they function very differently and use different "power" ... | |
| science | 10/5/2011 |
| Q: 1. why does the glass break up when the water freeze. how does it relate to the theory of kinetics ... A: Water expands when it freezes. Thus when you put water into a glass container that does not permit ... | |
| Science Fair help | 9/27/2011 |
| Q: I am looking for a good science fair project that involves football. My teacher said that I can't ... A: This is a tough one. But I think I have an idea for you. Does the size of a person's hand make a ... | |
| Science Fair | 9/22/2011 |
| Q: hello and thanks for reading since i read you were a science fair judge your the person i need to ... A: There are a lot of cool experiments you can do with the growing of alga : 1) how does sound impact ... | |
| PHYSICS | 8/29/2011 |
| Q: Can u pls help me. I need a good, easy, presentable working model on Types of energy and the steps ... A: Well, you can build an inexpensive wind mill using a paper pin wheel and a fan, you can build a ... | |
| Science fair help! | 8/27/2011 |
| Q: I am in 8th grade, and i am doing a science fair project. I have found a project i am interested in, ... A: Most science fairs require that you do an experiment to prove or disprove your hypothesis. It looks ... | |
| Kingdoms | 8/21/2011 |
| Q: I'm an 8th grader and we have to do a project on the 5 kingdoms for class. Our teacher explained to ... A: The 5 kingdoms of the natural world. This can be confusing because they do use a different ... | |
| Materials, Science | 8/12/2011 |
| Q: What is the material commonly used to make an aquarium? A: Normally Tempered Glass is used since it is high strength and very durable. Other materials that can ... | |
| biogeochemical cycles | 7/24/2011 |
| Q: Sir, what is the connection of all the water, carbon, nitrogen, and phosphorus cycle? A: I"m not sure I understand your question. They are all biological cycles needed for life on Earth. ... | |
| Science Project | 7/20/2011 |
| Q: I am doing a science project in which I am investigating what cup material is the better insulator ... A: The key is the transmission of hot or cold. This is called thermal transfer. Those materials that ... | |
| crystal formation | 7/13/2011 |
| Q: I've been fooling around with crystal formation this summer. I've read about growing sugar and salt ... A: As far as I know you can't because the water can not have a supersaturated amount of either sugar or ... | |
| science project | 7/12/2011 |
| Q: Im in 9th standard. i need to make a working model on the topic Green Energy. please help me with ... A: The easiest is a solar oven. It is also very inexpensive. Please look at the following websites to ... | |
| working model | 7/2/2011 |
| Q: .. m in 9th grade..and i want to make a working model basically that produces sound...little ... A: You will need a motor with shaft. Attache a bit of wood to the shaft. Suspend a bit of metal on a ... | |
| Friction | 6/29/2011 |
| Q: How does pouring water on a surface affect the amount of friction it has? A: Water can act as a "lubricant" there by reducing the friction. It also is a good heat sink reducing ... | |
| Build a solar oven | 6/19/2011 |
| Q: Can you explain in detail about the materials required and an easy procedure of making a solar oven ... A: Here are some websites to visit: ... | |
| Physics project | 6/18/2011 |
| Q: Can you please suggest a physics working model for class 10. It can be on any topic related to ... A: How about the Solar Oven idea? This requires a cardboard box, aluminum foil and the sun. Another ... | |
| Physics project | 6/16/2011 |
| Q: Can you please suggest a physics working model for class 10. It can be on any topic related to ... A: Please understand, I live in the US. I am aware of the wide range of socio-economic conditions of ... | |
| Physics project | 6/15/2011 |
| Q: Can you please suggest a physics working model for class 10. It can be on any topic related to ... A: Can you get a potatoe or a lemon? With one of these, you can make an electro-magnet with some wire ... | |
| physics model-making | 6/12/2011 |
| Q: ...I am a student of 12th grade....and i am 18yrs old...actually i have to make a working model as ... A: I am very sorry to hear about your illness and I hope that you are recovering quickly. The ... | |
| Stain removal | 6/11/2011 |
| Q: I am doing a science fair experiment on what is the best way to remove red wine from carpet. I can't ... A: Taking the same carpet cut it into similar sized pieces. Then place the stain on the carpet, try to ... | |
| physics | 5/23/2011 |
| Q: sir, i wanna some ideas of working models on any topic of physics and iwant them to be in the level ... A: There are many different ideas that I could provide but can you tell me what aspect of Physics ... | |
| Robotics | 5/14/2011 |
| Q: I am in 9th grade. I have got to prepare a physics model,I have decided to make a Robot, Is it good. ... A: For the Megneto-rheological switch you will need the following: a test tube with stopper cooking ... | |
| Robotics | 5/13/2011 |
| Q: I am in 9th grade. I have got to prepare a physics model,I have decided to make a Robot, Is it good. ... A: I would say that a robot is not a good physics model. Physics has to do with the basic physical ... | |
| pulleys and gears | 5/12/2011 |
| Q: i like to play school with my friend Darcie.I can`t find a worksheet about it.Do you know where i ... A: It is very nice of you to play with your friend Darcie and have a "school". Are you looking for ... | |
| asking a question | 5/9/2011 |
| Q: I am the student of class 10th can you please send me the list of parts needed for making a ... A: This is difficult not knowing what you have access to or the willingness of you or your parents to ... | |
| settle and meet emotional needs for children | 5/9/2011 |
| Q: As a caregiver how would you plan to meet the emotional needs of Max Aged 3 ½ yrs within the ... A: This is a difficult situation in that he has only one other to which he has an attachement. One way ... | |
| Physical Science | 5/4/2011 |
| Q: How are grass stains formed on a molecular level? I understand that they lay on top of the ... A: Grass stains in particular are an organic stain. The fabric is made up of threads that are tightly ... | |
| Evaporation of Different Kinds of Oils | 5/1/2011 |
| Q: Our biochemistry-laboratory teacher asked us to explain why other oils evaporate faster and others, ... A: The volatility of the oil is what allows the speed of evaporation. This is affected be the ambient ... | |
| Science Fair Project | 4/26/2011 |
| Q: This year our assigned group chose to do our project on the best stain removers, why they are the ... A: There is a lot of information on this subject on the internet. There are three basic types of ... | |
| Egg Drop Experiment | 4/19/2011 |
| Q: I am doing an Egg Drop for my teacher and if the egg does not break i get an A. We have to drop the ... A: Sorry that you are getting your answer so late. Take your egg, and place it in a nest of cotton ... | |
| 5th grade invention project | 4/18/2011 |
| Q: My 5th grader needs to come up with a workable invention which will be made in class and then ... A: There are already pizza cutters that can cut a whole pizza at one time. They look like giant cookie ... | |
| Salt Crystals vs. Sugar Crystals | 4/12/2011 |
| Q: I'm in the 6th grade and this year i am doing salt crystals vs. sugar crystals which would grow to ... A: There are several books on the subject of crystal growing. Have you checked in the local public ... | |
| Science in Everyday life Experiences | 3/14/2011 |
| Q: Glass displays, like those we see in shopping malls, usually have glasses of water inside with the ... A: Even in a relatively humid place like Singapore, because of air conditioning, the air becomes dry. ... | |
| How to NOT Break an Egg. | 3/9/2011 |
| Q: In my science class we are supposed to design a vehicle that fits in a meter cube, and travels 30 ... A: Boy oh boy, teachers are doing some strange experiments these days. The key is, of course, keeping ... | |
| electrical pickle | 3/9/2011 |
| Q: can you please give me step by step directions on how to create the electrical pickle. or if you can ... A: you will need the following items: a 9 volt battery 4 peices of insulated wire (total of 4' long ... | |
| science fair | 2/23/2011 |
| Q: how can i make a tesla coil for my sons science fair A: 1) how old is your son 2) what grade is he in 3) is it HIS science fair? 4) what is HE interested in ... | |
| liquid battery experiment | 2/14/2011 |
| Q: sir, we had a potato battery experiment with my son using copper tube and concrete nails as ... A: Sodium Chloride (table salt) is the best of the electrolytes you can use. The Copper Sulfide would ... | |
| potato battery experiment | 2/13/2011 |
| Q: sir, we had a potato battery experiment with my son using copper tube and concrete nails as ... A: I'm not sure that a concrete nail would be the best one to use. You need to use one that has been ... | |
| potatoe battery experiment | 2/12/2011 |
| Q: How come our potato battery which generates 1.63 volts could not light up our small bulb? I have ... A: So you have tried the circuit with a battery in place of the potato and it worked? The only ... | |
| science project/ which liquid will evaporate faster? | 2/9/2011 |
| Q: My name is Sendy and I'm doing a science project in my school. Ive been trying to search for the ... A: Well if you have two shallow bowls, one with milk and the other with water and they are both exposed ... | |
| 5th Grade Science Fair | 2/8/2011 |
| Q: Mr. Salier-Hellendag, First off, thank you for your time and assistance. My son is in the fifth ... A: This is a very simple experiment but it can be made more interesting by adding salt or lemon juice ... | |
| science progect | 2/7/2011 |
| Q: i need help on my science progect u have to find something to do e.g a microwave or a machine ... A: I'll be more then happy to help. But first I need some basic information. What grade level are you ... | |
| Soda Carbonation | 2/6/2011 |
| Q: I need a chart for the question; Does soda lose its carbonation faster in cold or hot temperatures? A: Cold temperatures tend to keep carbonated drinks "fresh". This is because at cold temperatures, the ... | |
| Our senses | 2/5/2011 |
| Q: I just wondered if you could clear something up for me. Aside from the religious aspects, could you ... A: DRug induced hallucinations can create some very vivid illusions in the head. But, things are real, ... | |
| Our senses | 2/4/2011 |
| Q: I just wondered if you could clear something up for me. Aside from the religious aspects, could you ... A: Yes, I can well understand your cofusion. But, let us take a blind person, someone with out sight. ... | |
| Friction and surface types | 2/3/2011 |
| Q: How does different surface types affect friction? Will the friction be more on rough surfaces than ... A: Friction can be a factor of surface condition but there are some materials that no mater how rough ... | |
| Is what we are seeing really there? | 2/2/2011 |
| Q: I know everything does exist but I can't understand whether I am seeing the real thing or just what ... A: If the object you see is a solid one then your eyes by virtue of sterio-vison, you can detect a "3 ... | |
| Is what we are seeing really there? | 2/1/2011 |
| Q: I know everything does exist but I can't understand whether I am seeing the real thing or just what ... A: That depends on what it is that you are seeing. If you are looking at a photograph then the ... | |
| Is what we are seeing really there? | 2/1/2011 |
| Q: I know everything does exist but I can't understand whether I am seeing the real thing or just what ... A: Our eyes are like scanners. They pick up an image from the outside world and then this is ... | |
| physics working model | 1/22/2011 |
| Q: ....i need a physics working model it has to be easy and done using everyday items I'm in class 8 ... A: A very easy demonstration model to build is an electro-magnet. For this you will need a battery, a ... | |
| Need a good idea. | 1/18/2011 |
| Q: My third grader is doing his first Science Fair Project this year. We are super excited, but also ... A: One of my favorite is simple metal plating. It can be done with batteries and a wire set up. You ... | |
| science | 1/13/2011 |
| Q: I WANT TO MAKE SIMPLE MODEL ON MAGNET OR ELECTRICITY OR LIGHT,SHADOW A: These are all different in nature. You can make a simple electro-magnet, you can make a small ... | |
| density | 1/6/2011 |
| Q: what is the density of silicon dioxide, also known as silica? A: www.azom.com/Details.asp?ArticleID=1114 wiki.answers.com › ... › Categories › Science › Earth ... | |
| 5th grade science fair project | 1/5/2011 |
| Q: My son is working on his science project "Does color have an affect on a person's food choice?" my ... A: Typically any experiment that uses human subject for observational purposes needs special forms that ... | |
| comparing carbonation in different sodas | 1/4/2011 |
| Q: My son is doing a science fair project on the effects of soda on teeth. We are wondering if the ... A: The carbonation has little to no effect on the teeth. However there are several acids in different ... | |
| solar car | 1/2/2011 |
| Q: i want to make a model of a small car running on a solar cell.can you give me the steps for doing ... A: You will need the following materials: Solar Cell with sufficient power to run a small solar motor ... | |
| Science Fair Project Growing Red Beans | 12/28/2010 |
| Q: We are doing a science fair project with to see if miracle grow really helps plants grow bigger. We ... A: So, you are trying to grow beans. Not knowing where you live, I will assume that you are trying ... | |
| science | 12/27/2010 |
| Q: can you help me in finding a working model using renewable sources of energy A: Do you want to purchase this or build it? Do you want it wind or solar powered? If you are to build ... | |
| physics working model for class 11 | 12/19/2010 |
| Q: I urgently need a simple and good working model for physics of class 11th. can you please suggest ... A: The easiest would be an electro magnet. for this you will need a battery, some insulated wire, a ... | |
| plant growth | 12/15/2010 |
| Q: How do different types of fertilizers affect plant growth? A: This is a very hard question to answer due to the many variables involved. Every type of soil and ... | |
| science fair? | 12/3/2010 |
| Q: i am looking for some veryy good science fair ideas for grade 7 or 8 do you have some ideas? Thx a ... A: There are many great science fair ideas but to select the best one for you, I need some idea of what ... | |
| grass/heat | 12/2/2010 |
| Q: I have a project to determine if grass will conduct enough heat to cook an egg. Right now, it is ... A: This sounds like a very unusual experiment. Grass is flamable in a dry condition so then the ... | |
| In search of models | 12/1/2010 |
| Q: 9 Our ward level science exhibition is on the urge. me and my group has decided to do a project on ... A: Nanotechnology is a great area of study but it is complex due to its very small size. Do you have ... | |
| Heating Nichrome Wire | 11/30/2010 |
| Q: I want to get a nichrome wire red hot using a 9v battery. What wire gauge do I want and do i want ... A: I'm not sure if you can get either red hot using a 9V battery. The easiest way to test this is to ... | |
| IR thermometers | 11/26/2010 |
| Q: thansk for your responses, i couldnt send it with the previous responses because it has too many ... A: No, an infrared thermometer is simply a sensor (see paragraph 2) that collects a signal from the ... | |
| Crystals | 11/23/2010 |
| Q: is it possible to make crystals form protein,(any type of protein) and if so do they form naturally ... A: There is a whole field of science devoted to the field of protein crystallography! And yes they do ... | |
| Stains | 11/20/2010 |
| Q: I'm doing a science fair project and would like to know the science behind a stain and what ... A: Stains come in three families: 1) protein stains like grass and blood 2) Organic stains like tomato ... | |
| thermometers | 11/20/2010 |
| Q: how do infrared thermometers work? how do they "sense" body temperature on children? thanks gia ... A: Yes, IR can cause cancerous growths on the skin if not protected and only after a great deal of ... | |
| thermometers | 11/19/2010 |
| Q: how do infrared thermometers work? how do they "sense" body temperature on children? thanks gia ... A: Infrared "radiation" is not radiation like radioactive radiation. Radio active radiation is ... | |
| thermometers | 11/17/2010 |
| Q: how do infrared thermometers work? how do they "sense" body temperature on children? thanks gia A: Infrared is part of the electro-magnetic spectrum. If you look at a rainbow (the viable part of the ... | |
| radiation | 11/17/2010 |
| Q: radiation from an xray machine in a dentist office or radiation from a computer in a home, when the ... A: With x=rays the damage can be done if the dose is too high or over exposure to x-rays due to work ... | |
| science fair project | 11/17/2010 |
| Q: we wanted to do a science fair project about oscillating water columns (OWC). We are trying to find ... A: well you can test the effect of "rate" or frequency. You can test the amplitude (the height of the ... | |
| Teeth | 11/15/2010 |
| Q: For my chemistry science project, i am placing eggs in a stainer(coffee or soda) and then brushing ... A: There is only a vague similarity between egg shell and teeth. The enamel of teeth is slightly ... | |
| science fair project | 11/14/2010 |
| Q: we wanted to do a science fair project about oscillating water columns (OWC). We are trying to find ... A: This is a fairly sophisticated experiment. Most have used the ocean as a test base but it can be ... | |
| radiation | 11/14/2010 |
| Q: radiation from an xray machine in a dentist office or radiation from a computer in a home, when the ... A: Well, in the case of IR or inferred radiation or heat, that dissipates or in the case of the human ... | |
| friction | 11/13/2010 |
| Q: Are hugging, shaking hands, snozling my cat, and licking my ice cream cone examples of sliding ... A: Hugging probably not until the two people "pull apart" same with shaking hands. 1'm not sure what ... | |
| radiation | 11/11/2010 |
| Q: radiation from an xray machine in a dentist office or radiation from a computer in a home, when the ... A: There are many types of radiation, not all of it is radioactive in nature. For instance, when you ... | |
| science fair project-what produces more voltage a potato or a lemon | 11/9/2010 |
| Q: My son is in 5th grade & doing a project on what produces more voltage a potato or a lemon. Well the ... A: The way this works is that in the potatoe or lemon are electrolites that act on the anode or cathode ... | |
| What is the control group? | 11/9/2010 |
| Q: My daughter is conducting an experiment with the following hypothesis- If a person is blindfolded ... A: This could be one of two things. A, the control group is not blind folded but the skittles are ... | |
| Science Fair Interview | 11/1/2010 |
| Q: I'm a 8th grade student doing a science project making candy crystals. I have a couple of questions ... A: 1) a very long time. I judged my very first science fair in 1989 and have since judged in local, ... | |
| MONORAIL WORKING MODEL FOR STD-6 | 11/1/2010 |
| Q: I have been given the project to make a simple working model of monorail from school I dont know how ... A: When you say, minimal cost this will be what defines how you build the monorail. Not knowing what ... | |
| apple desconposition | 10/17/2010 |
| Q: why the apple turned black, after you cutter, and why the apple doesn't turned black wen you rubber ... A: The surface of a cut apple turns brown due to enzymes on the surface mixing with oxygen in the air ... | |
| magnets | 10/16/2010 |
| Q: can you say me a projectwith magnets for6th class A: There are many projects that can be done with magnets. 1) make a nail motor 2) make a electro ... | |
| science- chemisty | 10/15/2010 |
| Q: What will happen to the volume of a helium balloon as it rises into the atmosphere (sky)? A: That depends on the temperature of the air around the balloon. Where it is colder, the helium will ... | |
| science fair project experiment | 10/14/2010 |
| Q: I need a science fair project topic that I can use to conduct an on-going experiment. I love the ... A: I like the lava lamp idea but these lamps are really quite dangerous and the content are two ... | |
| how to make a simple heater | 10/8/2010 |
| Q: I want to conduct quite a difficult experiment for me and i have a problem in building a heater. ... A: what you want to do is very dangerous. Heating coils are hazardous to work with unless well ... | |
| determining the control in science project | 10/6/2010 |
| Q: Doing a project for science fair...which drink will evaporate faster, coke, milk, orange juice or ... A: If the temp, container, amount of liquid are all constants. The liquids are the independant ... | |
| science project | 10/6/2010 |
| Q: My project is will a big or small battery magnatize more paper clips. However I'm having trouble ... A: I am assuming that you are making electro-magnets. I'm not sure what you mean by "big" and "small" ... | |
| bean growing medium science project | 10/6/2010 |
| Q: My daughter has chosen to grow bean plants in different mediums(soil, sand, gravel and paper towel) ... A: Your daughter should read up on Hydroponics, plant growth, use of fertilizers (also the dangers to ... | |
| Chemistry (Compounds) Y8 | 10/6/2010 |
| Q: I've been given some homework to be in by 11th October, and I have to research Methane, Water, ... A: In the human body or in the environment? Methane can be found in the human intestines as part of ... | |
| bean growing medium science project | 10/6/2010 |
| Q: My daughter has chosen to grow bean plants in different mediums(soil, sand, gravel and paper towel) ... A: Apperently my first attempt at answer this failed to go through. I would avoid using soil since ... | |
| Biology | 10/4/2010 |
| Q: Focusing on long-term abuse of alcohol as a cause of cirrhosis, speculate how alcohol may cause ... A: This sounds like a homework question and I don't answer home work questions. However, I will point ... | |
| Science Project | 10/2/2010 |
| Q: I am interested in working with small animals (mealworms, beetles, caterpillars, and so on) for my ... A: Since this is for a Science Fair project, you will need to get permission to use live animals. ... | |
| Science Project | 9/27/2010 |
| Q: How do we desig a device that will use a transformation from one form of energy to kinetic energy in ... A: Build a sail car. This is a car with wheels and can be one that already exists. Mount a mast to ... | |
| biology | 9/26/2010 |
| Q: how would you compare bacteria kingdoms with other kingdoms and how would you compare and contrast ... A: Biologically speaking, these kingdoms are well defined and can be found in most biology books. But ... | |
| science exhibition | 9/26/2010 |
| Q: i am having science exhibitin in my school and i need to prepare a working modal on the topic "Green ... A: You can build a wind generator, a solar oven, a potatoe clock, a composting bin, all of which are ... | |
| Making a 9 volt tesla Coil | 9/25/2010 |
| Q: I know that is not a real e-mail but my mom wants me safe. Well i am 11 and i want to build a ... A: A Tesla Coil requires an aluminum or steel sphere, a belt made of rubberr, an insulated stand, a ... | |
| science | 9/21/2010 |
| Q: how do you drop an egg with out it breaking in a 2 litter of soda A: How do you drop an egg, which is inside of an empty 2 liter soda bottle, so that the egg does not ... | |
| Egg Drop | 9/19/2010 |
| Q: Hellendag, I have this school project, where I am suppose to drop an egg from 20 ft, and the only ... A: Wow, this is the hardest egg drop I've heard about. You will need to build an air foil with two ... | |
| science | 9/14/2010 |
| Q: i got a question for myu science fair project what is the best way to keep an ice from melting but i ... A: How to keep ice from melting. Well there are several ways. 1) keep it in the freezer 2) in a very ... | |
| Third grade science project | 9/6/2010 |
| Q: Will the type of container used (ie plastic, metal or glass) affect how long it takes water to ... A: The basic answer is yes. The reason is that different materials transmit cold differently. Metal ... | |
| Marble Dispenser | 8/24/2010 |
| Q: How could we make a simple marble dispenser that is able to dispense 5 marbles consistently? A: You will need a clock mechanism so that it dispenses on a regular basis. Then you will need a cog ... | |
| magnetism | 8/17/2010 |
| Q: I want to prepare a project on magnetism. Can you give me some idea about it& can you show me some ... A: There are many different kinds of projects you can do with magnetism. 1) build an electro magnet ... | |
| physics | 7/28/2010 |
| Q: Sir, I want to make a physics model but i am confused . i want the project of any 11 class and it ... A: I don't know what is expected for class 11 physics. You will need to give me some guide lines in ... | |
| solar RC car | 7/16/2010 |
| Q: Ok i have recently became interested in robotic/RC cars i realized after about 1 hour of running my ... A: Take a look at the battery pack and trace the wires from the pack. There should be a + and - on the ... | |
| physics | 6/12/2010 |
| Q: please suggest a working model based on either electricity or magnetism or both. A: Why not make a small electric motor. You will need magnets, wire, a battery and nails. Go to these ... | |
| chemistry | 6/11/2010 |
| Q: what are the differences between a gas and vapours? A: A gas can be elemental in nature such as Oxygen or Nitrogen or it can be a molecular gas such as ... | |
| will we get sick | 6/6/2010 |
| Q: I make my own syurp after we eat it the syurp I saw a groth it made on the side of the bottle ... A: You did not indicate what kind of syurp you make. But if it is round, white and spongy, it sounds ... | |
| hi | 6/5/2010 |
| Q: I would like to ask u one more question which adissive is advisable to be used for joining ... A: Plastic is typically if flamable (will burn) and with sufficient heat, so will aluminum. To join ... | |
| Mould Growth | 6/2/2010 |
| Q: How does sugar affect mould growth? A: That depends on the mold. Some use sugars as an energy source and some avoid sugars. For instance, ... | |
| physics | 5/20/2010 |
| Q: ! ur idea of the solar heater was superb but it was way too bulky.i wanted to make a small no cost ... A: I don't know if it will work but take the coil you have and it should have two ends. The coil gets ... | |
| Science fair project | 5/19/2010 |
| Q: How do i explain density 2 a 7 year old. Can the dead sea b used as example? , how much salt per a ... A: Yes, you can use the Dead Sea as an example. You can also use wood floating on water and glass that ... | |
| physics | 5/19/2010 |
| Q: i wanted to make a heating coil.i know i should use nichrome.the problem is i can't find one.can u ... A: There are two ways to make a solar hot water heater. One is to use the coil from the stove and use ... | |
| physics | 5/18/2010 |
| Q: i wanted to make a heating coil.i know i should use nichrome.the problem is i can't find one.can u ... A: An electric water heater would have a coil, an electric dish washing machine may have a coil. an ... | |
| model making | 5/14/2010 |
| Q: plz tell me how to generate electricity using magnets? A: You want to build a generator. There are many designs and some can be made with great simplicity ... | |
| chemistry | 5/10/2010 |
| Q: my name is Helen Nguyen, i am in year 11 and i would like to ask a few questions to do with metals. ... A: 1) A lot of this information is on the internet. Have you tried to go to www.google.com and put in ... | |
| Science class project | 5/9/2010 |
| Q: My 6th grader has to build a contraption that converts 2 different forms of potential energy(heat, ... A: You would be better off using heat to turn the pinwheel. To do this, focus sunlight via a ... | |
| Homework help: | 4/29/2010 |
| Q: Could you please explain to me the chemistry of how protein in meat is broken down and used in the ... A: Here are some websites that explain this process. ... | |
| SCIENCE FAIR | 4/25/2010 |
| Q: I'M DOING A SCIENCE FAIR PROJECT ON A SKEWER THROUGH A BALLOON. I need some help on deciding what ... A: Well, I would try piercing the balloon at lest 5 times with each of the methods suggested above. ... | |
| SCIENCE FAIR | 4/25/2010 |
| Q: I'M DOING A SCIENCE FAIR PROJECT ON A SKEWER THROUGH A BALLOON. I need some help on deciding what ... A: I think that you will be popping a lot of balloons. I would recommend that you use metal ... | |
| SCIENCE FAIR | 4/25/2010 |
| Q: I'M DOING A SCIENCE FAIR PROJECT ON A SKEWER THROUGH A BALLOON. I need some help on deciding what ... A: You will need to tell me more about this experiment before I can tell you what your independent, ... | |
| simple working model | 4/25/2010 |
| Q: I AM GOING FROM STD 8-STD 9.I AM ASSIGNED TO MAKE A SIMPLE WORKING MODEL {PHYSICS} BY MY TEACHER.I'M ... A: You have many choices for this from making a small motor or generator to creating a spectrum of ... | |
| science fair (control, IND and DEP variables | 4/23/2010 |
| Q: from a kid friendly science web site my daughter choose 'Is fruit size related to seed production?' ... A: Well, you have no control. This is a problem. Also, counting tiny seeds is often a very difficult ... | |
| science fair (control, IND and DEP variables | 4/23/2010 |
| Q: from a kid friendly science web site my daughter choose 'Is fruit size related to seed production?' ... A: This is a bit of a hard one. You did not list the type of fruit you selected and you did not ... | |
| physics | 4/23/2010 |
| Q: i have to make a working model for my physics exibition and i dont have much time 30th march it is ... A: Yes, March 30 is long gone. Photovoltaic - This is generally a silicon chip. This material reacts ... | |
| science fair mystery | 4/22/2010 |
| Q: for my science fair project I'm trying to do how the digestion of protein varies at different pH ... A: http://www.ias.ac.in/resonance/Mar2002/pdf/Mar2002Classroom2.pdf ... | |
| Tendon tissue | 4/21/2010 |
| Q: What is the tendon tissue in the heart for? A: Muscles are attached to tendons at either end of the muscle fibers. Since the heart is a pumping ... | |
| Biology Project: Oil Stain Remover | 4/21/2010 |
| Q: For our AP Biology project, we have to create a biologically based product that has appeal to ... A: Plant and animal by products like olive oil or vegge oil. animal fat are produced in a living ... | |
| science fair | 4/20/2010 |
| Q: I did a science fair project on which plant grows better in water, Pepsi and coffee and Pepsi grew ... A: Different plants have different sensitivities to the acidity of the "soil" or media in which they ... | |
| Rainbows | 4/19/2010 |
| Q: Why are bubbles rainbow? A: Bubbles are a liquid with air inside. The thickness of the liquid changes as the liquid flows to ... | |
| Salt Crystals size | 4/19/2010 |
| Q: My sister is doing a project due tomorrow and we needed a reason to answer the question, "How big do ... A: it is important for brothers and sisters to help each other. How big can salt crystals grow? ... | |
| electromagnets | 4/14/2010 |
| Q: please can you tell me how electromagnets work and what are their uses A: An electro-magnet is simply an iron or steel object like a nail or a large plate of steel around ... | |
| energy | 4/14/2010 |
| Q: I have done research about fruit batteries. I have lots of cows and would like to make a clock ... A: That is an excellent question. Here are some things to consider: 1) the cow manure would need to ... | |
| environmental science | 4/10/2010 |
| Q: i want a project on the effects of climate change on carbon cycle.from where will i get it?please ... A: The carbon cycle does not change with climate change. It may slow down to a degree because there is ... | |
| magnetism on liquids | 4/9/2010 |
| Q: I am in the 2nd grade. Does magnetism vary in water, vinegar and concentrated lemon juice? I tested ... A: Magnetism is not effected by liquids unless it has a very high content of Iron, Nickel, Cobalt or a ... | |
| Science | 4/9/2010 |
| Q: Bromine(Br) is a liquid at room temp. Oxygen(O) is a gas at room temp. room temperture is 25 degeres ... A: Well lets look at this logically, D) if the melting point of Br was warmer then room temp then it ... | |
| egg drop experiment | 4/8/2010 |
| Q: I am limited to the following materials: 10 tongue depressors, 10 popsicle sticks,10 jumbo paper ... A: Take the cotton puffs and glue them to the egg and try to cover all of the egg with a puff. Then ... | |
| invention ideas | 4/3/2010 |
| Q: Hi Ralph my daughter is a fifth grader and needs an invention due on April 15 of this year any ... A: How about an ice cube melter. This is a slide t hat t he ice cube goes down and there is a switch ... | |
| corrosion | 3/30/2010 |
| Q: For a science project I have seven weeks to make a tin can corrode as much as possible. Do you have ... A: That depends on the can. Is it made of steel, aluminum, coated steel? A true "Tin" can would be ... | |
| magnetic fields around the earth | 3/30/2010 |
| Q: Why do the arrows representing the magnetism flow toward the North pole, and they flow away from the ... A: With a bar magnet, if you lay it on a peice of white paper and put iron fillings on the paper the ... | |
| science fair project - how to get started | 3/21/2010 |
| Q: I am in the fifth grade and for my science project, I have to demonstrate how color affects the rate ... A: You can find a bunch of stuff on the internet. Check out www.google.com and put in melting ice ... | |
| how fast does water freeze | 3/20/2010 |
| Q: My names is Brendan and I am in the forth grade.I am getting ready for my third science fair. I ... A: This is a good "pre" experiment for you to do. Ask your mom for some help and take two plastic ice ... | |
| science fair project - how to get started | 3/19/2010 |
| Q: I am in the fifth grade and for my science project, I have to demonstrate how color affects the rate ... A: The first thing you will need to do is find a way to make ice cubes totally equal to each other. I ... | |
| dinosaur digging material | 3/13/2010 |
| Q: I am a teacher and I want to have my kids experience the thrill of digging for dinosaur bones. I ... A: I've done similar things. The sand and parafin works well but you need an ungodly amount of ... | |
| Simple Machines | 3/12/2010 |
| Q: I've been trying to find simple machines in the human body. I need to find a screw, a wheel and ... A: A screw - the top of the spinal column called the axle bone allows the head to swivel around and ... | |
| resolve | 3/4/2010 |
| Q: how does resolve work i need this in a moments notice 5 grade A: Well it depends on which resolve you are working with. Some use enzymes to break down the organic ... | |
| metals | 3/1/2010 |
| Q: My daughter is teaching a before and after school program for grades 1-2 and wants to do work with ... A: Back in my youth we did some metal working in camp (ages 6 to 10), where we took thin copper sheets ... | |
| Science | 2/26/2010 |
| Q: Will saltwater, sugar water or plain water evaporate faster? ANSWER: Hi Regina, What do you ... A: Yes, plain water should evaporate first then the other two ( at about the same time). Both salt and ... | |
| Science | 2/25/2010 |
| Q: Will saltwater, sugar water or plain water evaporate faster? A: What do you think? What would cause water not to evaporate as quickly when there is sugar or salt ... | |
| Science fair question | 2/19/2010 |
| Q: I did a science fair project on what I thought was water displacement. I measured how many marbles, ... A: This is in part a factor of volume and secondly the wave produced by the much larger area of the ... | |
| Science fair question | 2/19/2010 |
| Q: I did a science fair project on what I thought was water displacement. I measured how many marbles, ... A: Surface tension does have an impact but because you are dropping things thru the surface, you are ... | |
| Pressure Sensitive Adhesives | 2/18/2010 |
| Q: I was wondering how cold effects the adhesive strength of pressure sensitive adhesive tape. A: This is a good science fair question. There are a lot of variables that you will need to watch and ... | |
| cannon project | 2/12/2010 |
| Q: I have a cannon project due next week for school. It has to be less than 2ft. long and can not be ... A: Can't be air pressure or chemical reaction!!. Wow. That does limit the mechanisms. Are you ... | |
| question | 2/9/2010 |
| Q: 1. Is the actual amount of material in an object called mass? 2. If gas is heated does its molecules ... A: I typically don't do home work questions but I"ll help you out: 1) The mass is the weight of the ... | |
| My Project | 2/9/2010 |
| Q: I am in the 8th grade and i wanted to know how would i do a poster on lava lamps? A: Lava lamps are very cool devices. They are made up of a base with a lamp that heats the two fluids ... | |
| mayiscool1@gmail.com | 2/9/2010 |
| Q: Why is hot water less dense than cold water? A: Hot water is made up of water molecules that are highly agitated and as the water continues to heat, ... | |
| Navigational Lock | 2/5/2010 |
| Q: The only part we find ambiguous are the actual doors. Primarily how they seal shut. Are there any ... A: In the real thing, it is the shear weight of the doors that do the trick, but even with that, they ... | |
| Navigational Lock | 2/4/2010 |
| Q: The only part we find ambiguous are the actual doors. Primarily how they seal shut. Are there any ... A: I don't remember responding to this question originally but the doors can be sealed using standard ... | |
| Building and laser | 2/4/2010 |
| Q: I have an afterschool program and one of the students in my middle school class wants instruction on ... A: Building a laser is not so easy. The light source is generally the issue and then to amplify it is ... | |
| Solution Invention | 1/30/2010 |
| Q: .. My son is in 4th grade and has an invention project due on Monday, he has been sick a couple e ... A: These are always a challenge. Most 4th graders have eyes bigger then they have capability. But, a ... | |
| Plant | 1/28/2010 |
| Q: How does milk affect a plant? Why does the milk stay on top of the soil and make the soil hard? A: There are several components in milk that could put a crust on the soil. Milk is mostly water but ... | |
| CORROSION | 1/27/2010 |
| Q: WHAT ARE THE CHEMICALS WHICH CAUSE CORROSION IN GLASS? CAN GLASS BE RE-USED AFTER IT HAS UNDERGONE ... A: Glass is one of the most stable materials man has made, but not invented. There are glass objects ... | |
| SOLAR PANEL AND MAN MADE LIGHT | 1/26/2010 |
| Q: HOW CAN I SHOW THAT MY MINI SOLAR PANEL CAR WORKS AT MY SCIENCE FAIR IF I WILL NOT BE ALLOWED TO USE ... A: A solar car is not an experiment. It is a demonstration. But your question would be an ... | |
| electric motors | 1/25/2010 |
| Q: How does an electric motor work or function? A: , A motor is a rather simple machine. Inside of the housing of the motor there is an armature. ... | |
| Ferrofluid | 1/24/2010 |
| Q: Is "which magnet works best with Ferrofluid" a good science fair question? A: No. A ferrofluid or rheological fluid. These fluids have many uses in industry and are highly ... | |
| Counting Bacteria | 1/22/2010 |
| Q: I'm planning to use the serial dilution method to count bacteria and measure how quickly they grow ... A: The difference between a broth vs agar is that broth remains liquid while agar sets up like a ... | |
| protien digestion in different ph's | 1/21/2010 |
| Q: I'm doing this experiement for my project this year. From my research I should need an enzyme that ... A: The question you ask is a great one. Will the protein really digest with just the buffer solution? ... | |
| Hygiene practices | 1/21/2010 |
| Q: Please, comment on how you could reassure the parent. Blake‟s mother Cate asks to speak to ... A: First of all a 20 month old boy may not be mature enough to be interested in potty training. Girls ... | |
| Carbonation. | 1/19/2010 |
| Q: Ok, so im doing a science fair i am in eight grade(just to tell u) and were doing is there more ... A: Very often diet soda has more carbonation in it because it is not saturated with sugars like the ... | |
| Evaporation | 1/18/2010 |
| Q: My son is doing a science project and his grandpa and I are discussing the outcome and seem to ... A: The rate of evaporation depends on several factors. First of all, are these liquids just sitting ... | |
| fizz in soda pop | 1/17/2010 |
| Q: My daughter in 3rd grade is doing a science fair project about the amount of fizz in different soda ... A: The best way is by displacement. In a large basin, place two bricks on the bottom and fill the ... | |
| Plutonium | 1/15/2010 |
| Q: My daughter is doing a science and she needs to bring in a prop that represents plutonium. We told ... A: Go to you closest hobby shop and find a medium sized styrofoam ball the size of a soccer ball. ... | |
| melting ice | 1/14/2010 |
| Q: I was under the impression that any substance that can disolve in water will lower the freezing ... A: No, not all substances dissolved in water will lower the freezing point. In fact there are some ... | |
| science | 1/14/2010 |
| Q: Why is it when we thump a can of soda ( coke ) after it has been shook up or dropped and we are ... A: The bubbles at the top will squirt out along with a lot of soda. By tapping the can, all of these ... | |
| fuel cell | 1/12/2010 |
| Q: how to build a fuel cell? A: there are many types of fuel cells some easy to build and others much more complex. Here are some ... | |
| science fair | 1/11/2010 |
| Q: i am navya and i am in grade 10, there is a science fair being organized in our school this year.can ... A: A model is not an experiment and most science fair projects are experiments using the experimental ... | |
| electricity conductivity | 1/11/2010 |
| Q: My partner and I are working on a science project to determine if marker ink would conduct ... A: Pure water or distilled water is a VERY poor conductor of electricity, in fact, it does not conduct ... | |
| evaporation | 1/10/2010 |
| Q: My son is doing a science project about the evaporation of salt water compared with the evaporation ... A: This experiment is a bit more sophisticated then it may seem. You would need to start out with ... | |
| CHemistry | 1/9/2010 |
| Q: Why is Clay a good insulator? How do i explain using Chemistry? A: When you speak about a good insulator do you mean for heat applications or electrical? I will ... | |
| Punnett Squares | 1/5/2010 |
| Q: Help! Can you explain this? A: Punnett Squares are used to predict the out come of a genetic cross breeding when recessive and ... | |
| weighing same volume of liquids | 1/3/2010 |
| Q: If I weigh 4 liquids(salad oil, OJ,soda,water) with the same exact volume-will they weigh the same? A: Probably not. Weight is based on the density of the liquids. The Salad Oil is less dense then the ... | |
| Microbiology summer programs for kids | 1/3/2010 |
| Q: My 13 year old son has a new found interest in microbiology. I'm interested in summer programs for ... A: Contact the universities in Maine, Mass, NH, Vermont, NY, Conn and RI and see if any are sponsering ... | |
| Science fair project on the chemical Oya | 1/1/2010 |
| Q: I have decided to do a science fair project using Debbie Mayer green bags and the chemical Oya. I ... A: What is Oya? The Debbie Mayer green bags do contain a chemical but it is not Oya. Since this is ... | |
| graph | 12/27/2009 |
| Q: how will this bar graph look like? Independent : Time- 0, 5 and 10 Dependent : alcohol mixture- 0, ... A: I am sorry but that does not make sense to me. They will all burn but due to the introduction of ... | |
| graph | 12/27/2009 |
| Q: how will this bar graph look like? Independent : Time- 0, 5 and 10 Dependent : alcohol mixture- 0, ... A: Oh, Well, the one soaked in water should have taken longer to catch fire and would should have ... | |
| graph | 12/25/2009 |
| Q: how will this bar graph look like? Independent : Time- 0, 5 and 10 Dependent : alcohol mixture- 0, ... A: Not knowing the actual data, It is hard for me to know exactly what you are doing. Are you freezing ... | |
| periodic table | 12/9/2009 |
| Q: As a French scientist, deChancourtois, invented the first periodic table, and it was a three ... A: The Mendeleevian is a much easier table to use and for many students easier to understand. Its lay ... | |
| convex lens | 12/5/2009 |
| Q: can you tell me the relationship between the thickness of the convex lens and the distance of the ... A: Here are three websites that may be able to explain the relationship you are looking for. ... | |
| carbonation experiment | 12/3/2009 |
| Q: My son is doing a science fair to determine if carbonation affects the rate at which ice melts. He ... A: This is a good experiment. I suggest that you do it more times so that you can get a statistical ... | |
| graph question | 12/2/2009 |
| Q: My 10 yr old son is working on his science fair project- Which liquid water, orange juice, vinegar, ... A: The chart can be a daily one which then indicates on which day the first signs of rust were ... | |
| hi again | 12/2/2009 |
| Q: my science teacher says that for my science fair project i can not use that method to measure ... A: For me to understand your experiment, you will need to explain it to me in detail. If I understand ... | |
| Science fair project | 12/1/2009 |
| Q: I am in 9th grade and i'm doing my science fair project on a line following robot(a robot that ... A: How is power transfered from the motor to the axel? There must be a gear that does this. But since ... | |
| Science fair project | 12/1/2009 |
| Q: I am in 9th grade and i'm doing my science fair project on a line following robot(a robot that ... A: Car speed is based on the gear ratio, the wheel size the distance traveled thus speed. So you need ... | |
| Science fair project | 12/1/2009 |
| Q: I am in 9th grade and i'm doing my science fair project on a line following robot(a robot that ... A: You are trying to do to many things at one time. I assume that you are using Lego robotics for your ... | |
| physics | 11/30/2009 |
| Q: my teacher said me to do project on physics on topic neutral reaction i want to know what i do on ... A: ask your teacher if she ment physics or chemistry. I am not familiar with a neutral reaction in ... | |
| independent varible and dependent variable | 11/29/2009 |
| Q: ok i have a science fair project that i have to do. my project involves testing to see weather ... A: First of all, you have to many variables to work with and no control. You need a control to compare ... | |
| melting chocolate | 11/29/2009 |
| Q: why does chocolate melts faster in water with sugar than water with salt or soap? why sugar exaclty? A: First, I want to make sure that I am understanding your experiment correctly and you will need to ... | |
| molecular structure of sugar | 11/25/2009 |
| Q: My name is Lily and I am 9 years old. I am doing my science project on how the molecular structure ... A: When sugar is dissolved in water, the structure of the sugar breaks down into ions. If the solution ... | |
| Convection | 11/22/2009 |
| Q: I need some examples of convection here is what i have; a furnace, water boiling and i need some ... A: The air circulation in a furnace or a heating system functions by convection as does boiling water ... | |
| science fair project | 11/21/2009 |
| Q: My daughter is doing a science fair project, and she has to complete a status report- problem ... A: Shame on your daughter for waiting so long. The hypothesis is a simple statement that would go some ... | |
| velocity of different liquids | 11/20/2009 |
| Q: I am working on a 5th grade science fair project and I am having trouble locating resources for the ... A: The problem is not so much the velocity but rather the amount of drag/friction based on the ... | |
| Boiling Liquids | 11/19/2009 |
| Q: I am doing a science fair project on boiling different liquids with water, but I don't exactly know ... A: Since all of these liquids already are water based, I'm not sure that you will find different ... | |
| Science Fair Projects | 11/18/2009 |
| Q: Salier-Hellendag I am a high school student, in the tenth grade. I designed a special studies ... A: It may not be a direct aid to society but many of todays diseases are genetically studied and they ... | |
| Science Fair Projects | 11/18/2009 |
| Q: Salier-Hellendag I am a high school student, in the tenth grade. I designed a special studies ... A: Have you ever worked with recombinant DNA or RNA? Have you ever extracted DNA from plants like a ... | |
| chromatograpy | 11/17/2009 |
| Q: HOW DO YOU EXPLAIN CHROMATOGRAPHY IN SIMPLE WORDS XX A: Chromatography is a scientific method for looking at the component parts of a substance like a dye ... | |
| Use of hydrogen after electrolysis | 11/15/2009 |
| Q: Sir,I have done electrolysis by using electrode made using many aluminium foil and using washing ... A: You can use the hydrogen to float a balloon, it will burn explosively so it is not good for cooking, ... | |
| invention convention | 11/14/2009 |
| Q: hey,I'm in 5th grade and we have to do invention convention its due in 1 and a half weeks and i half ... A: you have a very pretty name. So, you need to invent something. What sorts of things do you like? ... | |
| about the carbonation measurement | 11/12/2009 |
| Q: On the answer about how to measure carbonation, how do you invert the cup without all of the water ... A: No. Put the cup into the basin, filled with water, turn the cup over while it is submerged in the ... | |
| about the carbonation measurement | 11/11/2009 |
| Q: On the answer about how to measure carbonation, how do you invert the cup without all of the water ... A: The trick is to invert the measuring cup while it is under water in the basin. As long as the mouth ... | |
| Tornado projects What is the independent variable? | 11/11/2009 |
| Q: What is the independent variable in a tornado science project. me and my partner chose a tornado. so ... A: A tornado is not an experiment, it is a demonstration. Most science fairs require that you do an ... | |
| Dry Ice and Milk | 11/9/2009 |
| Q: My son is doing a science fair project mixing dry ice and milk in a "volcano cake" to create an ... A: Well here is an experiment that can be done using Dry Ice (note the previous warning about this ... | |
| Dry Ice and Milk | 11/9/2009 |
| Q: My son is doing a science fair project mixing dry ice and milk in a "volcano cake" to create an ... A: This is generally a weak "explosion" if any. Below I have provided 2 websites that provide some ... | |
| Science | 11/7/2009 |
| Q: How to make an egg survive from an egg drop project? The requirements are: Must be 15cm x 30cm or ... A: Have you looked at all of the egg drop project ideas on the internet? There are tons of ideas! ... | |
| Change 240V christmas lights to solar lighting | 11/7/2009 |
| Q: Hi my grandson is trying to experiment with changing over the electrical component of the Christmas ... A: This can be done but generally you will need some additional equipment besides a Photovoltaic solar ... | |
| Forensics keywords | 11/4/2009 |
| Q: What do these keywords mean? Please could you also give an example of each of them (if that makes ... A: here in the states we have science fair competitions and these are key words used in these science ... | |
| carbonation | 11/4/2009 |
| Q: I need to explain natural carbonation of soda to a 10 year old. Could you please help? Thanks! A: Soda like Coke, Pepsi etc... are artificially carbonated. This is done by injecting CO2 (Carbon ... | |
| biology questions | 11/4/2009 |
| Q: Which is heavier: Mitochondria or chloroplast? A: This is a very hard question to answer because there is a great deal of diversity in the size of ... | |
| solar calculator | 11/3/2009 |
| Q: what is a solar calculator what are its advantages and disadvantages? A: A solar calculator is very simply a calculator that uses a small Photovoltaic cell or solar battery ... | |
| science fair | 11/1/2009 |
| Q: Have you ever made a mousetrap powered car and if you have send me results!!!!!! ... A: I've never made a mouse trap car but go to www.google.com and put in "mouse trap car designs" and a ... | |
| chemistry | 11/1/2009 |
| Q: explain why was the yeast and ammonium phoshate added to the glucose solution in the making of ... A: Di-ammonium phosphate is a key nutrient for yeast. This is often added to glucose solutions and ... | |
| Project | 10/29/2009 |
| Q: well im tring to make a biodigestor for a project, but im thinking not to use not animal nor human ... A: Here are some suggestions: www.ruralcostarica.com/biodigester.html - ... | |
| Abiotic and Biotic Relationships | 10/28/2009 |
| Q: For homework, I have a question that states: List 3 examples of interdependency, these should ... A: I think that the definition for abiotic is not quite right based on your teacher's example. Abiotic ... | |
| egg drop game | 10/28/2009 |
| Q: How can I construct an object made out of either 100 straws and 2 meters of tape or 50 index cards ... A: I assume that you need to drop this from some height afterwards to see if the egg remains intact. ... | |
| Sodium | 10/24/2009 |
| Q: What happens when sodium is placed in the freezer? A: That depends, If the sodium is still in its oil based media to protect it from water moisture, I ... | |
| the chemistry of milk | 10/22/2009 |
| Q: Is milk considered an acid, base or neutral liquid? There are conflicting opinions about it. Thank ... A: I assume that this is for a science fair project. In such projects you want to limit the number of ... | |
| the chemistry of milk | 10/21/2009 |
| Q: Is milk considered an acid, base or neutral liquid? There are conflicting opinions about it. Thank ... A: Since milk is so mildly acidic and contains calcium, the bone may take a long time to soften up. ... | |
| Chromatography | 10/21/2009 |
| Q: How are particles involved in the idea that modern paint would make a different pattern on the paper ... A: I have to admit that I am a bit perplexed by the question. Both new and old paints have particles ... | |
| Chromatography | 10/21/2009 |
| Q: How does chromatography separate the pigments? A: the pigments are made of different chemicals like titanium oxide or cobalt oxide etc... these all ... | |
| Chromatography | 10/21/2009 |
| Q: How does chromatography work? I don't really understand. Also why would modern paint give different ... A: Chromatography works by separating the molecules in a mixture. This can be enhanced with an ... | |
| the chemistry of milk | 10/21/2009 |
| Q: Is milk considered an acid, base or neutral liquid? There are conflicting opinions about it. Thank ... A: Most cow's milk will fall into the range of 6.4 to 6.8 pH which makes it slightly acidic. However, ... | |
| Egg Drop Project | 10/20/2009 |
| Q: I am doing an egg drop project. It needs to survive a drop off the 3rd story of a parking garage.. ... A: That is a long way to fall even for an egg. What you need is some memory foam the kind used for ... | |
| encourage children to express their likes and dislikes | 10/20/2009 |
| Q: Please, why it is important to encourage children to express their likes and dislikes? and why is it ... A: Because children are human beings and have likes and dislikes. If you don't want screaming children ... | |
| geology ? | 10/20/2009 |
| Q: why does soil heat faster than water A: A very good question. Water has a shiny reflective surface that reflects heat away from the water's ... | |
| Sports Science | 10/20/2009 |
| Q: Do You Know anyone that has ever did an project involving sports, what webs do i go to? A: Yes, I know of several experiments involving sports. 1) Testing the power of bats. Using ... | |
| science fair project | 10/19/2009 |
| Q: im doing a science fair project and my question is......which drink is the most carbonated?how do i ... A: This is a really hard experiment to do since every type of carbonated drink can be different, even ... | |
| Meet emotional needs and settle children | 10/18/2009 |
| Q: As a caregiver how would you plan to meet the emotional needs of Max Aged 3 ½ yrs within the ... A: The best way to help Max with is distress it to divert his attention. I provided some suggestions ... | |
| Develop an understanding of children's interests and developmental needs | 10/17/2009 |
| Q: Please can you help answers the following questions or some of them? I will appreciate that, thank ... A: There is no question here. It looks like this is an assignment that requires that you create some ... | |
| Deliver services/activities to stimulate children's development and enhance their leisure | 10/17/2009 |
| Q: Please can you help answers the following questions or some of them? I will appreciate that, thank ... A: Again, I will not do your home work for you. THis is YOUR work to do. These are questions that you ... | |
| Communicate and interact with children | 10/17/2009 |
| Q: Please can you help answers the following questions or some of them? I will appreciate that, thank ... A: As I have stated before, I will not do your home work for you. I may give you some guidance but ... | |
| care for children | 10/16/2009 |
| Q: Please can you help answers the following questions or some of them? I will appreciate that, thank ... A: This is a huge assignment. I typically do NOT do home work for others. So, I will give you some ... | |
| Soda carbonation | 10/14/2009 |
| Q: How would u b able 2 measure if soda loses it's carbonation faster in hot or cold temperature? A: Open two 1 liter containers of the same soda. Leave one out on the counter cap off and the other ... | |
| egg drop | 10/14/2009 |
| Q: helendag I need to know how to drop an egg from a roof using only 3 pieces of 8 %26 ... A: Use the paper to make the largest parachute you can using the toothpicks to connect the sheets of ... | |
| Density | 10/14/2009 |
| Q: How does density affect the atmosphere in a given area? A: I'm not sure what you are asking. Atmospheric density is largely the same at sea level around the ... | |
| science question | 10/14/2009 |
| Q: what made alpha particles heavier than rutherford thought they should be? please help me with this ... A: This wikipedia entry should provide the answers to your questions about the Alpha ... | |
| My earth science project | 10/10/2009 |
| Q: I have an earth science project due on october 20th or october 21st, but Im having a difficult time ... A: When your mom or dad buy strawberries at the grocery store they come in a hard plastic clam shell. ... | |
| me & my chinchilla | 10/9/2009 |
| Q: can you help me with a science fair project with my chinchilla?!?!?! pleeeeez! A: First of all, you will need to get permission from your teacher to use your chinchilla. Since this ... | |
| sciece project-do apples rot faster in orange juice or lime juice | 10/8/2009 |
| Q: im doing a science project and i wanted to know if apples rot faster in lime juice or orange juice ... A: This is an interesting experiment. I've never heard of something like this being done. Why do you ... | |
| science | 10/7/2009 |
| Q: I have a science project in school. I have to make vacuum flask with using things which we can get ... A: This website will tell you how it works and what they look like:home.howstuffworks.com/thermos.htm ... | |
| physics working model | 10/7/2009 |
| Q: I'm tarun and tell me how to make a wing mill.im in 8th std. please!!!!!!!!!!!!!!!!!!!!!!!!!!!! A: Do you actually need to build a wind mill, or do you just need a drawing of how one functions? The ... | |
| I need help with friction in my homework! | 10/5/2009 |
| Q: I am 10 years old and i need to know what friction is by the end of the day i need to know what it ... A: I generally do not do home work questions but I will help you on this occasion. ... | |
| crystals | 10/4/2009 |
| Q: He has already grown sugar crystals, and knows he can grow salt crystals the same way, but he has ... A: When you make the super solution of a combination of salt and sugar, the crystals will begin to grow ... | |
| Cooking | 10/2/2009 |
| Q: Describe the differences between convection and conduction. Identify four cooking methods that rely ... A: I hope this is not a home work question. I generally don't answer them. In convection cooking, the ... | |
| artificial arm | 9/25/2009 |
| Q: I'm in seventh grade and for C.T.E. Mr.rencher and I have to build a artifical arm what do I do? and ... A: Well I don't know exactly how you need to do this or how accurate this needs to be or look. Does ... | |
| Respiration investigations | 9/21/2009 |
| Q: how do I carry out investigations to know the effect of temperature on respiration rate? I have look ... A: This is a very hard question to respond to. Are you asking about plants or animals and at what ... | |
| role of sensory receptors | 9/18/2009 |
| Q: outline the role of sensory receptors in mammals in converting different forms of energy into nerve ... A: Much of this information can be found on the internet. go to www.google.com and put in "role of ... | |
| communication systems with mammals | 9/18/2009 |
| Q: outline the need for communication systems with mammals to respond to changes in internal & external ... A: This is a very broad question that is not possible to answer. For instance, there are differences ... | |
| Science fiction | 9/17/2009 |
| Q: Science fiction is simply fantasy & escapism.' Discuss.1) whats your notes on interpreting question, ... A: Yes, many questions. Science Fiction is just that, FICTION. Sometimes things from science ... | |
| Is it a acceptable truth? | 9/16/2009 |
| Q: Sorry for asking more question, your previous answer has solve some of my doubt and question. 1) Do ... A: 1) for all intents and purposes, a solid is solid, a liquid is liquid and a gas is gas. I accept ... | |
| Elements, Compounds and Mixtures | 9/15/2009 |
| Q: mixtures and compounds but we don't know how to tell the difference between it being an element a ... A: Well yes and no. Some things are mixtures like tea or wood. While others are much more difficult to ... | |
| Elements, Compounds and Mixtures | 9/15/2009 |
| Q: mixtures and compounds but we don't know how to tell the difference between it being an element a ... A: An element is a pure form of a substance. Thus Oxygen is an element, Gold is an element and Silver ... | |
| Is the truth reasonable and understandable? | 9/13/2009 |
| Q: I am disturb by the truth of human perception of life and world, that is different from what I ... A: I understand your confusion. It is very confusing. When you read the words that I have written, ... | |
| Is the truth reasonable and understandable? | 9/12/2009 |
| Q: I am disturb by the truth of human perception of life and world, that is different from what I ... A: Have you been watching the Matrix movies?? Well in reality, what we "see, hear, smell and feel" are ... | |
| production of hydrogen from electrolysis of water | 9/11/2009 |
| Q: I am doing a project work to produce hydrogen form electrolysis of water . I had already started ... A: The set up for this is quite straight forward. In a container (a large glass bowl is best) fill ... | |
| Science Fair-Physics | 9/10/2009 |
| Q: I need help with finding research for my science fair project. I am in 7th grade. my topic/project ... A: This is a very hard question to answer. I am unaware of any research that has been done in this ... | |
| production of hydrogen from electrolysis of water | 9/10/2009 |
| Q: I am doing a project work to produce hydrogen form electrolysis of water . I had already started ... A: You have judged me rather harshly. If you could provide me with more information perhaps then I can ... | |
| what type of caterpillar is this? | 8/26/2009 |
| Q: I work at a daycare and we found some cocoons on an evergreen type bush. I believe it's an ... A: I believe the cocoon is being spun by a type of caterpillar that eats evergreens. As they form ... | |
| Do we have the same tastebud? | 8/25/2009 |
| Q: I have a question to ask, when I saw my dog eating my biscuit, I was wondering, do dog have the same ... A: No dogs do not have the same taste buds as humans do. In fact, they taste a very broad range of ... | |
| speed of balls | 8/15/2009 |
| Q: What is the theory behind why a tennis ball goes faster with a dog thrower than a human throwing ... A: While I'm not sure what a "dog thrower" is, I think what you are referring to is a throwing ... | |
| working model for exhibition | 7/26/2009 |
| Q: I am having an exhibition in school and need a working model on the topic conservation of energy or ... A: I don't know if you have or can get magnets, wire and the other materials needed for making a ... | |
| experiment to show existence of atoms/molecules | 7/26/2009 |
| Q: I'm preparing to teach a late elem homeschool group some basic chemistry. I am having trouble ... A: I would recommend that you either make "rock salt" or "rock candy". With either, you need to make a ... | |
| egg dropping | 7/22/2009 |
| Q: what can i use to protect my egg if i drop it 3 storries A: Usually there are restrictions on such tests and you should have been given some guide lines and ... | |
| Testing Sugar Content in Food | 7/19/2009 |
| Q: We are testing the sugar content in different lollies. I know you add yeast to the lollies and then ... A: Pull out a cook book and go to the bread section. This section of the cook book should have at ... | |
| Starch & potatos | 7/19/2009 |
| Q: I read a story on an Israeli that used a potato on his knee to fail the medical for joining the ... A: I don''t know if it would do to the Israeli what the story tells but it does do a good job of ... | |
| Testing Sugar Content in Food | 7/19/2009 |
| Q: We are testing the sugar content in different lollies. I know you add yeast to the lollies and then ... A: There are several ways to test the sugar content of foods: ... | |
| linking science and literacy | 7/1/2009 |
| Q: I have to organise a science week for 8-9 yr olds based on a fairy story which will generate ... A: I am reasonably familiar with the Harry Potter Stories and there are a number of things that are ... | |
| linking science and literacy | 7/1/2009 |
| Q: I have to organise a science week for 8-9 yr olds based on a fairy story which will generate ... A: This is a tough one!. Do you have any fairy stories in mind? How about the Harry Potter stories? ... | |
| Carbonation | 6/25/2009 |
| Q: Is carbonation affected by shaking an unopened bottle of soda? What is the effect on a partially ... A: Yes, shaking a bottle or can of soda can cause some of the carbonation to come out of solution and ... | |
| Gases into Solids | 6/23/2009 |
| Q: Hey, Mr. Salier-hellendag! I was just wanting to know: if you made a gas cold enough to turn into a ... A: Only one of the 10 elements that are gaseous at room temperature are metalic when "frozen" that is ... | |
| Soda Carbonation | 6/17/2009 |
| Q: I am working on my Science Fair project and I have decided to find out what kind of soda has the ... A: You will be testing several types of soda, I assume. In doing so, you can hypothesize that diet ... | |
| Stain Removers | 6/16/2009 |
| Q: I am wondering if you could help find out what is in salt, milk, vingar, soap and bicarbonate soda. ... A: Salt is Sodium Chloride, two inorganic elements combined to make salt. Sodium a volatile metal and ... | |
| Energy Experiments | 6/16/2009 |
| Q: I would like to demonstrate alternate energy sources out my environmental education centre. Can you ... A: To contact Pitsco directly for non-lego items: Yes. We advise that he communicate his requests ... | |
| how to make a solar cell at home | 6/15/2009 |
| Q: I want to ask that how can we make solar cell at home which doesnot need many things because I live ... A: There are two kinds of solar cells. One is to make electricity and these are very sophisticated ... | |
| Nail Polish remover- URGENT!!!! | 6/14/2009 |
| Q: Why do you need friction (to rub) nail polish remover to remove the nail polish. Is it because ... A: Nail Polish remover is not a nail polish solvent. Nail polish is like a paint. In its liquid ... | |
| physics | 6/14/2009 |
| Q: my phisics teacher has told me to do a ppt on anything i know in physics.i am in grade 8.what shall ... A: It question is almost impossible for me to answer. Can you tell me what you know about physics? ... | |
| acids and bases question | 6/12/2009 |
| Q: We are third graders learning about acids and bases. We conducted red cabbage juice tests on a ... A: Chicken soup comes in so many varieties that it is almost impossible to make a clear determination. ... | |
| Physics working model | 6/8/2009 |
| Q: I am in class 9 and urgently need good ideas for a unique physics working model which should not ... A: This can be done very simply by using a float and rod mechanism. Using a wooden block, foam block ... | |
| Control, Independent, Depedent Variables | 6/7/2009 |
| Q: I am doing a science fair project on making a tornado vortex. I am using dry ice, water, and a ... A: This is a very cool demonstration of what happens in a real tornado. So the variables: Dependant: ... | |
| vocal chords | 6/1/2009 |
| Q: can you go into complex reasoning on how vocals chords work that an 8th grader would understand A: Do you or does a friend play a musical instrument that uses a reed? Or have you ever made a whistle ... | |
| earth's magnetic field | 5/28/2009 |
| Q: I am six years old and this is my question (by the way, my mom is helping me with the typing:)). How ... A: We don't know for sure how the Earth got its atmosphere but we have a good idea of how it happened. ... | |
| science | 5/26/2009 |
| Q: how do i answer these questions? 1. how are the substances like sugar,salt, flour and detergent ... A: These were questions asked of a 7 year old? This is quite advanced and not really appropriate for ... | |
| trees and the enviroment | 5/24/2009 |
| Q: how dose a tree function ,use and supply of nutrients such as in the carbon or nitrogen cycles A: Trees are very complex organisms. They use water, CO2, sun light and minerals from both the air and ... | |
| solar hot water | 5/20/2009 |
| Q: does not heat up day time A: Solar hot water works when the sun's rays hit a water filled system that has been painted black. ... | |
| 1st grade science fair - robots | 5/16/2009 |
| Q: My first grader (in a wheelchair) is participating in his first science fair. The task is to make ... A: This would be hard in or out of a wheelchair for any first grader. I guess that my first question ... | |
| Photosynthesis | 5/15/2009 |
| Q: Could you please help me with this Joseph Priestly, an 18th-century clergyman Write a hypothesis for ... A: Several books have been written about Joseph Priestly and his work. So, I'm not sure I can do him ... | |
| Salt water | 5/13/2009 |
| Q: So im doing this project for a science fair and i need to know HOW to do it.the project is removing ... A: There are two ways: 1) the boiling method and 2) the osmosis method. The Boiling method: Take ... | |
| nuclear power | 5/7/2009 |
| Q: We are doing a project for language arts that requires an interview about our topic. One of my ... A: 1) Nuclear Power is clean and relatively safe. It can provide power for a very long time. But it ... | |
| science experiment | 5/4/2009 |
| Q: how would you go about making an experiment to see if watering plants with gatorade would affect ... A: This is a very easy and straight forward experiment. So, what you will need to decide is a plant ... | |
| science | 5/3/2009 |
| Q: what is the energy from the nucleus of an atom? i need to know to study for a test tomorrow please ... A: There are several types of "energy" in the atom. The strong and weak forces, the energy between the ... | |
| friction | 5/2/2009 |
| Q: Could you tell me if there is any friction involved in a catapult experiment. Diego end his friend ... A: well friction is involved with everything except the movement of planets and even then it is on the ... | |
| soda fizz | 5/1/2009 |
| Q: Why does one soda loose its fizz quicker than another? We conducted an experiment and put 3 diff ... A: There could be lots of reasons. 1) the amount of carbonation used in that soda (each one get a ... | |
| friction | 4/30/2009 |
| Q: my son has to find out 5 objects that use low and high friction. please can you help A: I'm not sure that I understand your question completely. What do you mean by objects "that USE" low ... | |
| Variables & graphs for science project | 4/28/2009 |
| Q: My son did an experiment on burning money that had been soaked in an alcohol/water mix. He lit it ... A: Some schools provide a guide line for what the board is supposed to look like with what is on each ... | |
| dinosaurs | 4/21/2009 |
| Q: Why are dinosarus bones like a puzzle? A: Well it is because when the animal dies and the flesh decays the bones have a tendency of moving ... | |
| Separating objects | 4/21/2009 |
| Q: If you have a container of large and small buttons, how can you separate them without removing them ... A: THere is a way to do this by vibration. If you place them into a tall canister and shake the ... | |
| Heating elements | 4/21/2009 |
| Q: Is there a heating element on the market that is powered by a battery, flat & no more than eight ... A: Yes, there are thermal blankets that can be made into most any shape and size. They can also be ... | |
| Evolution | 4/20/2009 |
| Q: I am a student doing research in origins of life. Here is/are my question(s): What is required for ... A: These are questions that are nearly impossible to answer. Each planet may have radically different ... | |
| infrared beam motion detector | 4/17/2009 |
| Q: ...i want to know if an infrared beam motion detector can be reflected by a plane mirror and if so ... A: I think that there is a bit of a mix up here. You are mixing two different systems. Infrared ... | |
| Electronics | 4/14/2009 |
| Q: Hey! (: This might be a stupid question to you.. I don't know. But I really really need to know ... A: There is no such thing as a "stupid question". Several types of switches were invented early on, ... | |
| hard experiment | 4/13/2009 |
| Q: how could I explain that my cornstartch and water mixture goes hard when i hit it? thanks alot. ... A: The analogy is a fair one. What you have made is a Gellatin of sorts where the water is completely ... | |
| hard experiment | 4/13/2009 |
| Q: how could I explain that my cornstartch and water mixture goes hard when i hit it? thanks alot. A: I'm not sure I understand what you mean by "goes hard when you hit it". Please tell me how much ... | |
| soap bubbles | 4/8/2009 |
| Q: i was wondering what makes soap bubble up? i am doing a science fair on soap and i am gathering ... A: Soap is made up of three basic ingredients (some times many more). 1) a surfactant 2) a cleaning ... | |
| Science Experiment | 4/4/2009 |
| Q: I'm currently in middle school and I am working on a science experiment. I am putting 3 lollipops ... A: All three are water based so they may all dissolve the lolly pop at about the same rate. The ... | |
| Confused | 4/3/2009 |
| Q: My 4th grade students did an experiment using the Great Salt Lake water from Salt Lake water, and ... A: Excellent question. The salinity of the Great Salt Lake is about 17% while the oceans, depending on ... | |
| science | 4/1/2009 |
| Q: hey, why do we use images in science? A: By images do you mean photographs and illustrations? Both help in understanding what is being ... | |
| How does sugar effect the growth of mold? | 3/29/2009 |
| Q: How does sugar effect the growth of mold in tea? I conducted an experiment to see and I'm finding it ... A: Tea is predominently an acid based solution in water. Water does not promote the growth of mold by ... | |
| lighting a flashlight bulb with a magnet and | 3/11/2009 |
| Q: how do you light a flashlight bulb with a magnet and a coil generator A: You are thinking of a Faraday flashlight. These are similar to how a motor works but in reverse. ... | |
| carbon dioxide balloon | 3/10/2009 |
| Q: My daughter has decided that she wants to do a science fair project on inflating a balloon from the ... A: Using equal amounts will result in potentially different amounts of gas produced. This will show up ... | |
| carbon dioxide balloon | 3/9/2009 |
| Q: My daughter has decided that she wants to do a science fair project on inflating a balloon from the ... A: The parmacist at the drug store can also provide the acetic acid in a more pure form if you wish. ... | |
| carbon dioxide balloon | 3/9/2009 |
| Q: My daughter has decided that she wants to do a science fair project on inflating a balloon from the ... A: An interesting problem. I would recommend that you take the following approach. Do each set 3 ... | |
| Bicycle Power | 3/2/2009 |
| Q: My 8 year old son's teacher has asked me if I could build a system that could power something like a ... A: I though that I had answered this one already but perhaps it did not go through. Go to a high end ... | |
| chemistry | 2/20/2009 |
| Q: explain how sugar crystals dissolve in a cup of tea A: Sugar is a complex molecule which "falls apart" when introduced into hot liquids (Water in ... | |
| Squirrels | 2/19/2009 |
| Q: I have a science fair question for you. I have to figure out what type of food squirrels prefer. ... A: Just a couple of things you may not be aware of: 1) to work with animals in a science fair setting, ... | |
| liquid boiling points | 2/18/2009 |
| Q: hey, i am a year 10 student doing an assignment. I have chosen to do boiling liquids as my ... A: What is your hypothesis that you are trying to prove or disprove? One of the issues you will find ... | |
| Solar | 2/12/2009 |
| Q: My new briefcase came with a solar calculator. Of course, when the briefcase is closed the calc gets ... A: It should be instant on. The calculator's solar cells recharge the internal battery. The battery is ... | |
| Science Fair Crystal Garden | 2/11/2009 |
| Q: I am doing a science fair and my project is homemade crystal gardens. I have been trying for a while ... A: Did you look on www.google.com? Go to Google.com and put in crystal Garden history and you will ... | |
| HELP(: | 2/8/2009 |
| Q: I am doing a science fair proect on what soda contains the most fizz. please help me!!!! A: Every bottling company and every location uses different amounts of carbonation depending on water ... | |
| Radiation | 2/8/2009 |
| Q: What is radiation i am a bit stuck, so can you explain it in full? A: This is a little hard to explain since there are several types of radiation. For instance, there is ... | |
| Science Project:: | 2/4/2009 |
| Q: I am just wondering if you know of any fun science experiments a 11 year old could do that are fun? ... A: I like the idea of working with your rat. Does it do any tricks today? or does it just live in its ... | |
| Carbonation?????!!!!!!! | 2/4/2009 |
| Q: what is carbonation supposed to mean?I'm trying to do a school science project and I'm making soda ... A: There is NEVER any reason to use foul language on an email!! Please remember that. Even with the ... | |
| Science Project:: | 2/4/2009 |
| Q: I am just wondering if you know of any fun science experiments a 11 year old could do that are fun? ... A: What kind of animals? Do you have fish or other animals as pets? There are some things you can do ... | |
| Science Project:: | 2/3/2009 |
| Q: I am just wondering if you know of any fun science experiments a 11 year old could do that are fun? ... A: I know a lot of fun science experiments for many ages. Tell me more about what you like/// Do you ... | |
| 5th Grade Science Invention | 2/1/2009 |
| Q: My 5th grade son has to come up with an original idea for a scientific invention to present at a ... A: Ah, the candle snuffer. Build a ramp that a matchbox car can roll down. At the bottom it knocks ... | |
| Plant growth/photosynthesis | 2/1/2009 |
| Q: Do plants prefer to grow in the direction of the sun? If you answer my question I will appreciate ... A: Lola, Did you look at the website I sent to you? Did you try going to www.google.com and put in ... | |
| Plant growth/photosynthesis | 2/1/2009 |
| Q: Do plants prefer to grow in the direction of the sun? If you answer my question I will appreciate ... A: My name is Ralph Salier. I am one of the experts on AllExperts.com and I work with many people on ... | |
| 5th Grade Science Invention | 2/1/2009 |
| Q: My 5th grade son has to come up with an original idea for a scientific invention to present at a ... A: These are always a real pain. You can only invent so many things. Most end up like a Rub Goldberg ... | |
| rain over ocean and land | 1/31/2009 |
| Q: Does it rain more over the ocean than it does on land and why? A: It rains over both. How much more over one then the other, I'm not sure anyone really knows. ... | |
| invention idea | 1/29/2009 |
| Q: is there a quick invention i can do over nite with things i have at home can be of anything i am a ... A: Not knowing what you have at home this is a tall order. How about a popsicle stick compass WIth ... | |
| controls in experiments | 1/25/2009 |
| Q: What is the difference between control variables and experimental control? ANSWER: Hi Donna, ... A: It is not that you are slow or foggy, it is a confusing issue that many people don't grasp right ... | |
| controls in experiments | 1/25/2009 |
| Q: What is the difference between control variables and experimental control? A: Variables are those aspects of an experiment can be different while the "control" is the same in ... | |
| carbonation in soft drinks | 1/24/2009 |
| Q: How would i test the amount of carbonation in soft drinks? A: Taking a large basin filled with water, place two bricks into the basin so that you can place a ... | |
| salt water | 1/24/2009 |
| Q: How much water is there in all the lakes in the world A: I'm quite sure that we do not have an exact calculation for this. You will need to consider that ... | |
| I have a Question: | 1/24/2009 |
| Q: How can i make a Water Cycle into a science project? A: I'm not sure that you can. Parts of it yes, such as the evaporation portion or the part where the ... | |
| Homo Sapiens | 1/21/2009 |
| Q: I'm doing a report and I want to know... What makes the Homo Sapiens so successful? I mean how did ... A: We, homo sapiens that is, are highly adaptable and as a result, can live in most climates on the ... | |
| Science experiment for a 2nd grader in regards to determing density of liquids | 1/21/2009 |
| Q: I want to help my son do a science experiment dealing with determing the density of liquids. I was ... A: Most companies that make dish washing liquids or detergents are rather quite about the stuff they ... | |
| Science experiment for a 2nd grader in regards to determing density of liquids | 1/21/2009 |
| Q: I want to help my son do a science experiment dealing with determing the density of liquids. I was ... A: You are on the right track but doing 2 and 3 would add complexity and a lot more variables. Stick ... | |
| science | 1/15/2009 |
| Q: what happens during phycical and chemicle changes? what are some examples? A: I'm not sure what you mean by a physical change but typically, it means that the properties of the ... | |
| stain removal | 1/9/2009 |
| Q: I am researching info for science fair and my topic is which stain removal works most effectively ... A: There are many different kinds of stain removal agents from chemical to enzymatic (organic stain ... | |
| solar powered science project | 1/9/2009 |
| Q: My 8 year old received an electricity kit and solar power kit as Christmas gifts. He wants to ... A: Solar power obviously comes from light. So, you can test the operational effectiveness under ... | |
| Chemistry | 1/7/2009 |
| Q: !! I'm a high school student I'm doing a research project of detergents and I'd like to know the ... A: Detergents come in many forms and are designed to remove "soil" from fabrics or other surfaces such ... | |
| egg drop | 1/6/2009 |
| Q: i have to drop an egg from a high set of bleachers using a little paper cup, a small piece of ... A: I have been giving this a lot of thought. This is one of the most difficult groups of materials I ... | |
| enamel | 12/21/2008 |
| Q: What is a good replacement for tooth enamel in an experiment of stains on teeth? A: Contact your family dentist and ask him/her where to find teeth or dentures that you can use for ... | |
| Sugar content | 12/19/2008 |
| Q: How do you measure sugar content in orange juice? ANSWER: Hi Bernita there are several ways to do ... A: It is hard to do with out the proper equipment but it can be done. First you will need to take a ... | |
| Sugar content | 12/18/2008 |
| Q: How do you measure sugar content in orange juice? A: there are several ways to do this. One with a refractometer, the second with a sugar meter (like ... | |
| solar power | 12/17/2008 |
| Q: We are trying to build a solar powered boat. Do you thinik it would be better to attach a solar ... A: I would recommend that you obtain a RC boat and replace the gas powered motor with an electric one ... | |
| plastics melting capabilities | 12/17/2008 |
| Q: My son is doing his 7th grade science fair project on plastics and their ability to melt. He has ... A: I would be more concerned with the fumes from both melting the resin and the remelting of plastic ... | |
| Material to make 1lb float-gr.2 science | 12/14/2008 |
| Q: What materials (found around the house) should we use to make a floating device that can hold 450lbs ... A: That is a lot of weight. But here are some suggestions 1) ballons 2) foam packing peanuts 3) wood ... | |
| Yeast fermentation lab | 12/13/2008 |
| Q: We are getting prepared for a lab in which we will be testing the effects of different carbohydrates ... A: 1) determine a base line by determining how much the yeast ferment before the addition of carbs 2) ... | |
| how to use a voltmeter | 12/9/2008 |
| Q: I am doing a project I am in the third grade. My question is how do I use a voltmeter? What settings ... A: I think I understand what you want to do. For this to work, you will need copper and zinc strips ... | |
| Natural Science Questions | 12/9/2008 |
| Q: I have a couple of question that would help me understand some material better. 1. How do ... A: I will answer number 2 first as this is a bit easier to explain The answer is basically no. the ... | |
| science project | 12/8/2008 |
| Q: Which soft drink has the most carbonation? I need the answer for Wednesday coming up. A: This is a very difficult question to answer. The reason: Every bottling company has multiple ... | |
| Kind of stains | 12/8/2008 |
| Q: I have heard about organic and inorganic stains but have not yet understood what they mean and I ... A: An Organic Stain is made by something that was or is alive like grape jelly, grass, blood or bacon ... | |
| science | 12/5/2008 |
| Q: what hi energy in the nucleus of an atom called A: I'm not sure if I understand your question. The electrons spin around the nucleus of the atom and ... | |
| Soda Fizz | 12/4/2008 |
| Q: I am doing a science fair project and am trying to determine which soda has more fizz...How can I ... A: I suggest that you use cans of soda vs. a 2 liter bottle. The reason is that to set up the ... | |
| Affect of hot/cold temps on helium ballons | 11/25/2008 |
| Q: I would like to know how hot cold temperatures affect the bouyancy of helium balloons and what type ... A: Heat makes the molecules in a balloon speed up and become more active which may cause the balloon to ... | |
| Science | 11/24/2008 |
| Q: How does the growth of a plant with sunlight compare to the growth of a plant in the dark? A: A plant can not grow very well with out sunlight. The sunlight is what a plant needs to make food ... | |
| The big bang theory | 11/16/2008 |
| Q: I've always wanted to know what is the big bang theory, what is it about? Can you give me an ... A: This is the theory that discusses the beinning of the universe. A number of years ago, some ... | |
| Corroding Metals | 11/12/2008 |
| Q: My science fair project is about corroded metals. I put a penny, a stainless steel spoon, a small ... A: I would think that of the materials you tested, only the steel wool may have shown some rust in ... | |
| Chemistry Help! | 11/12/2008 |
| Q: I am a grade ten student and I had to complete a combustion lab in class. One of the questions was ... A: That depends on the fuel. If it is gas (propane or methane) then lighting a match to it will cause ... | |
| solubility of ink in water | 11/9/2008 |
| Q: I have to determine which ink (black or blue) is more soluble in water. Could you please provide ... A: The ink company that supplies the stamp shoud be able to tell you the content of the ink. You can ... | |
| solubility of ink in water | 11/9/2008 |
| Q: I have to determine which ink (black or blue) is more soluble in water. Could you please provide ... A: This experiment is nearly impossible to do. Two reasons: 1) with out knowing what the ink is made ... | |
| science fair project | 11/7/2008 |
| Q: what are some of your suggestions on how to find out paper towel absorbency for my science project? A: Quincy, Take samples of paper towels (all brands and types) cut a sample of each the the exact same ... | |
| science fair | 11/4/2008 |
| Q: When You do An experiment and You go To A Science fair do You Be nervous?? A: Are you feeling nervous? That is ok, it is a normal reaction to doing something new and unfamiliar. ... | |
| Plants | 11/3/2008 |
| Q: Do seeds grow faster in the light or without light? A: Seeds are not exposed to light. They are buried in the soil. HOwever the light provides warmth and ... | |
| solar panel | 11/3/2008 |
| Q: I am making a solar powered cell phone charger in my physics class and i need a mini solar panel, ... A: Small Solar cells are fairly inexpensive and can be found in a lot of hobby shops. They power ... | |
| Science | 11/1/2008 |
| Q: Why did it take scientists nearly another 80 years to discover francium? A: Francium (FR) atomic weight 87, is the rarest of the naturally occuring highly radio active ... | |
| Science Fair Project | 10/29/2008 |
| Q: I am a 5th grader and this year we are to do a science fair project. I found something online that ... A: This is a fairly easy experiment to demonstrate but since this is for a science fair project, you ... | |
| science | 10/27/2008 |
| Q: can you give me some examples of conduction convection and radiation?(sorry i need help) A: Conduction: Pour hot water into a tea cup and feel the heat conducting through the tea cup. This is ... | |
| White Scale | 10/27/2008 |
| Q: On the basis of teeth what is the white scale and how is it used? A: Are you asking about the tarter that can form on teeth in your mouth? If this is the case, tarter ... | |
| chemistry | 10/22/2008 |
| Q: i need to know the correct formula for potassium and hydroxide, hydrogen and nitrate, iorn(111)and ... A: Potassium Hydroxide - KOH Nitric Acid (I think) - HNO3 Iron Bromide(III) - FeBr3 Aluminum Sulfate ... | |
| Testing soil for acid level | 10/21/2008 |
| Q: I am working on a science project - testing different soil types to determine which might have the ... A: I would recommend that you look every where and take samples from all of these places. I would make ... | |
| how to make an egg drop | 10/21/2008 |
| Q: my teacher gave me an assignmetn to make an egg drop..he gave me a list of items i can use... ... A: This is a classic experiment. The idea is to drop an egg in a "package" from some height and the ... | |
| Soda Carbonation | 10/20/2008 |
| Q: How do I check how much carbonation is in the soda? I am doing a Science Fair project on: Does soda ... A: Warm soda looses its carbonation faster then cold. If you take a big basin of water and place into ... | |
| Sugarless Gum | 10/20/2008 |
| Q: My 7th grader is doing a sciene project which compares 2 major sugarless gum brands that claim their ... A: Some artificial sweeteners do not disolve as fast in the mouth as sugars do. There is also some ... | |
| Stain Removal | 10/20/2008 |
| Q: I am interested in experimenting with stain removal for science fair. I was wondering about the ... A: There are lots of things that get out stains. You can find a lot of information on the internet by ... | |
| waves | 10/15/2008 |
| Q: Why does light refract in water and sounds carry farther in water than on land? Are there any ... A: It is a matter of density. The more dense the substance the faster the sound waves travel. This ... | |
| sound | 10/14/2008 |
| Q: how does sound travel through water? How does light travel through water? ANSWER: Hi Caroline, ... A: Light travels through gases at the speed of light or nearly so, the molecules in the air does ... | |
| sound | 10/14/2008 |
| Q: how does sound travel through water? How does light travel through water? ANSWER: Hi Caroline, ... A: Due to the the density of the metal, sound travels very fast through metal pipes or even rail road ... | |
| waves | 10/14/2008 |
| Q: Why does light refract in water and sounds carry farther in water than on land? Are there any ... A: Light refracts faster in water due to the higher density of molecules. This can be demonstrated by ... | |
| science-solutions and suspensions | 10/14/2008 |
| Q: please help i'm really confused! my homework says: a)sugar cube + liquid water = sugar m_____ and ... A: This sounds like homework and the answers should be in your book. A) I'm not sure of the ... | |
| sound | 10/13/2008 |
| Q: how does sound travel through water? How does light travel through water? A: Both sound and light travel through water. But due to the higher density of water (vs. air) light ... | |
| variables in science | 10/11/2008 |
| Q: Please explain the difference between manipulative, responding, and controlled variables. Thank ... A: A controlled variable is acutally the "controlled elements" of an experiment thus if you are ... | |
| Measuring Carbonation | 10/9/2008 |
| Q: I read what you wrote about measuring carbonation with bottles of soda. I am an eighth grad student ... A: WIth a can of soda, take a basin of water and invert a measuring cup in the basin. Make sure that ... | |
| multiple chain of motors | 10/4/2008 |
| Q: I have created a new concept to a product, and I would like to make sure that the basic principles ... A: A motor required power input like electricity to make the core turn. On the other hand, you can ... | |
| bridge building | 9/27/2008 |
| Q: my class is doing a bridge contest and well I had to take notes on how I can make a strong bridge ... A: This will be very hard to do with only 100 toothpicks. But it can be done. The key is to build ... | |
| homo Sapiens Sapiens | 9/26/2008 |
| Q: I have 1 question for you! What kind of cultures did Homo Sapiens Sapiens have? A: Many different kinds. We are all Homo Sapiens Sapiens. 50,000 years ago we were hunter/gatherers ... | |
| Carpet stains | 9/25/2008 |
| Q: what is the chemistry behind a stain? And how would i find (or what) is the chemical process that ... A: Stains can be caused by organic or inorganic sources. An example of an organic stain would be blood ... | |
| soda | 9/24/2008 |
| Q: how does soda become a gas??? A: Soda contains Carbon Dioxide which gives soda its fizz. Once the container is opened, the Carbon ... | |
| Science | 9/22/2008 |
| Q: Give me a use of a good insulator! A: For Electricity, Rubber is a very good insulator and some kinds of plastic. that is why wires are ... | |
| Can you use soft drinks as an electrolyte to light a flash light bulb | 9/21/2008 |
| Q: This is a science fair project and i will be testing different soft drinks on which one lights up a ... A: Soft drinks may allow the current to flow due to all of the stuff, including sugar, that is in the ... | |
| Alternative energy - making a biodigester | 9/16/2008 |
| Q: I am in the fifth grade and live on a farm in Pennsylvania. I would like to do my science fair ... A: Sounds like a good idea but you won't know untill you try it out I would suggest that you also ... | |
| bridge building | 9/14/2008 |
| Q: my class is doing a bridge contest and well I had to take notes on how I can make a strong bridge ... A: I do not have enough info to help you at this time. Are you permitted to use glue? can you ... | |
| Magnetic force | 9/12/2008 |
| Q: How can we be sure that distance between a magnet and an iron object affects the force of ... A: The distance is dependent upon two variables. 1) the goss value of the magnet or the strength of ... | |
| protein digestion at different pH levels | 9/10/2008 |
| Q: Salier-Hellendag, back on Jan. 23, 2008 you suggested to a student who was interested in ... A: Your suggestion about consuming more acid or base foods when eating a high protien food may have ... | |
| science | 9/8/2008 |
| Q: I need a good explanation and method on how to find out the sugar content in fooods A: there are several ways to do this for packaged foods. On the nutrition panel, they will show the ... | |
| Can I say it is highly possible for human to perceive the same taste? | 8/27/2008 |
| Q: sorry for asking the same question again I know it is impossible to know or tested whether do we ... A: Yes, for the 4 basic tastes, I believe that we all taste them the same way or very nearly so. The ... | |
| Can I say it is highly possible for human to perceive the same taste? | 8/27/2008 |
| Q: sorry for asking the same question again I know it is impossible to know or tested whether do we ... A: All humans are 99.99% identical when it comes to our genetics. There are tiny veriations between ... | |
| Do we really | 8/25/2008 |
| Q: i have the same question to ask you... 1.When we look at a apple? do we really "SEE" the apple with ... A: 1) in your mind, when you send me an email, do you get the answer that you expected? Or is the ... | |
| Do we really | 8/24/2008 |
| Q: i have the same question to ask you... 1.When we look at a apple? do we really "SEE" the apple with ... A: Yes, the image you get is from the Apple itself. It is real and it exists. More then one person ... | |
| Do we really "SEE" the real world with our EYE? | 8/23/2008 |
| Q: i have the same question to ask you... 1.When we look at a apple? do we really "SEE" the apple with ... A: 1 our eyes are like a lens which captures the images we see on the retina of the eye. The retina ... | |
| adhesives | 8/21/2008 |
| Q: Do you have an idea for an experiment to test the strength of various adhesives? A: My son did a science fair experiment a long time ago in which he designed and built some popcicle ... | |
| What kind of caterpillar is this? | 8/20/2008 |
| Q: I was outside on my balcony watering my plants when I found this caterpillar on my dill plant. It is ... A: With out a photo of the caterpillar it would be very hard for me to identify what kind of larva it ... | |
| Getting Started!!!!!!!!!!!!!!!!!!!!!1 | 8/15/2008 |
| Q: Ralph, I'm working with the Asst. Supt. responsible for curriculum as an outside assistant. We both ... A: This is not an area of expertise for me. I am not a science teacher, I am a science fair judge. ... | |
| Getting Started!!!!!!!!!!!!!!!!!!!!!1 | 8/14/2008 |
| Q: Ralph, I'm working with the Asst. Supt. responsible for curriculum as an outside assistant. We both ... A: I am not very familiar with the STEM program. There are several websites that you can explore on ... | |
| helium | 8/12/2008 |
| Q: I'm doing a project on helium and i don't know how to make my model interactive. What do i do A: You will need to tell me more about the project and what you want to do. Are you using the helium ... | |
| Weight of sugar in tea | 8/9/2008 |
| Q: 45 years old just returning to uni to do intro to science unit for Primary Teaching. Cant remember ... A: What do you think will happen to it? Can matter disappear? no. But when it disolves into the hot ... | |
| dispersion | 8/3/2008 |
| Q: Why does food colouring disperse most quickly in gassy mineral water and is much slower in tap ... A: Food Coloring disperses at different rates depending on the chemistry of the liquid. In gassy ... | |
| CANDY CRYSTALS-URGENT DUE TOMORROW!!! PLZ HELP | 7/31/2008 |
| Q: why doesn't it grow candy crystals when you mix vinegar or red bull in a solution with sugar, brown ... A: I highly concentrated sugar solution capable of making sugar crystal candy must not have other ... | |
| Do our senses really perceive the real world? | 7/14/2008 |
| Q: I have read article from some website...and I have some issue concerning the existence of science ... A: We are conversing via email. I am human so is the person sitting next to me. Thus we have proof of ... | |
| Do our senses really perceive the real world? | 7/10/2008 |
| Q: I have read article from some website...and I have some issue concerning the existence of science ... A: I understand your confusion. The premis of the U-Tube film in my view is nonsense. Yes every thing ... | |
| Do human visual and colour receptor work differently? do human have the same visual experience | 7/3/2008 |
| Q: I got another question on human vision -Does Human have the same colour vision receptor? Do they ... A: My wife is a graphic artist and when she does a color correction to a photograph I have taken, the ... | |
| Do human visual and colour receptor work differently? do human have the same visual experience | 7/3/2008 |
| Q: I got another question on human vision -Does Human have the same colour vision receptor? Do they ... A: Normal eye sight is called 20/20 this means that an object of s specific size can be seen clearly ... | |
| Do human visual and colour receptor work differently? do human have the same visual experience | 7/3/2008 |
| Q: I got another question on human vision -Does Human have the same colour vision receptor? Do they ... A: Humans have color perception because of the types of receptors in the retina of the eye. Not all ... | |
| Encouraging my scientific daughter | 7/2/2008 |
| Q: My daughter, age 10, is going into the 5th grade and absolutely LOVES science. She won last year's ... A: Very good! I love it when a mom or dad want to encourage their daughters in the sciences. My own ... | |
| Does every human taste receptor work differently? Do we enjoy the same kind of taste sensation? | 7/1/2008 |
| Q: I understand no human taste receptor work exactly the same,does all the normal human taste receptor ... A: Good question. It will depend on several factors, first of all the nature of the food stuff and ... | |
| Does every human taste receptor work differently? Do we enjoy the same kind of taste sensation? | 6/30/2008 |
| Q: I understand no human taste receptor work exactly the same,does all the normal human taste receptor ... A: I belive that most mammels and many other animals have taste receptors on their toungs. The taste ... | |
| Calcium | 6/22/2008 |
| Q: for a school project we have to choose an element from the periodic table. we are asked to draw an ... A: When doing a chemical formula or when trying to determine the out come of a chemical reaction, the ... | |
| chemistry | 6/21/2008 |
| Q: what is the process of making dancing napthalene balls? A: Napthalene balls can be made to "dance" by placing them on a hot plate. This causes the naptha to ... | |
| Purge Dip System and Hydrostatic Pressure | 6/2/2008 |
| Q: What is purge-dip system? How it works in concept of hydrostatic pressure? (Please help me further ... A: WOuld you be kind enough to tell me what the application of this purge dip system is? The ... | |
| FACTS ABOUT FRICTION | 6/1/2008 |
| Q: MY SON IS NINE YEARS OLD, AND IS NEEDING TO KNOW TEN INTERESTING FACTS ABOUT FRICTION FOR HIS ... A: 1) trains have steel wheels and run on steel track. but it is the weight and friction t hat allows ... | |
| magnets and capacitors | 5/28/2008 |
| Q: why we can't use a magnet as a capacitor since that a magnet has south pole(negative) and north ... A: It depends on the type of circuit and the type of capacitor. There are many types of capacitors: ... | |
| coke cans | 5/28/2008 |
| Q: what is the metal used to make the coke can? Why is this metal used? why do some of the bubbles seem ... A: Most cans are now made of Aluminium. Some are made of steel. But those used by Coke-Cola are for ... | |
| about coke cans | 5/26/2008 |
| Q: murcia@yahoo.com.au thank you so much *kisses* love you , you saved my life 1. WHY DOES IT GET ... A: 1) what you have observed is called condensation. The cold can from the fridge draws moisture out ... | |
| chemistry | 5/25/2008 |
| Q: My 12yr old son wants to run a science experiment on testing the flammability of a variety of ... A: This is not as easy as it may seem. Many of the liquids you indicate are not easily flamable due to ... | |
| Ventlation for Model House | 5/23/2008 |
| Q: for a science project we need to build a model home that has to contain heat, and not let any heat ... A: The best material to use is some kind of foam board like foam core several layers thick or perhaps ... | |
| Sound | 5/22/2008 |
| Q: My son is doing a 4th grad science project and we are trying to figure out the best why to show what ... A: The best way to show what sound travels best through a solid, liquid or gas. I believe that a low ... | |
| Egg drop/launch competition | 5/21/2008 |
| Q: I have a project called the 'Egg Drop/launch competition'. I have only a limited supply - I will ... A: Take a 2L empty drink bottle. Cut an egg sized hole in the bottom. (Be careful not to cut yourself) ... | |
| Diff between salt water, poison and water | 5/18/2008 |
| Q: Hope you can help as I am fresh out of ideas. My niece (8) has been asked to answer the question ... A: I have had very young science students get help from local colleges, universities and even the ... | |
| science fair | 5/16/2008 |
| Q: Hey I'm doing a science fair project and i need to know why Styrofoam is a good insulator. ... A: Styrofoam and other similar foam products are good insulators because they do not transmit heat or ... | |
| Insulated shoebox house. | 5/16/2008 |
| Q: I have a question on how to make the BEST insulated shoebox house. I have to have two rooms, one to ... A: to insulate your houses,, you can use the same materials. There is builders foam with different "R" ... | |
| soda | 5/15/2008 |
| Q: I was wondering if you could give me any information on soda and what it contains. I need this info ... A: , What does soda contain. Well that depends on the soda. A cola contains 95 purified water, ... | |
| Explosion in nature | 5/15/2008 |
| Q: I'm a counselor for 9-10 year olds this summer and we are looking to incorporate nature into our ... A: Air pressure explosions are generally cool and safe. You can also do the exploding soda but this ... | |
| boat lock | 5/13/2008 |
| Q: ok, my class is doing this boat lock which in this case the toy boat has 2 rise how ever many ... A: You will some help on this from a parent potentially. The basic design will require 2 pieces of ... | |
| carbonation of soda | 5/7/2008 |
| Q: My daughter wants to measure the amount of carbonation in different soft drinks for her science fair ... A: This is a hard experiment for a third grader due to the amount of work it takes to get good ... | |
| 5th Grade Science Project | 5/5/2008 |
| Q: Ralph, My son is really into football. He is in the 5th grade. He has a Science Fair coming up. ... A: There was a recent "Mythbusters" program which demonstrated that filling a foot ball with Helium did ... | |
| dissolving sugar | 4/30/2008 |
| Q: Which will dissolve in water quicker, a small sugar cube or sugar granules? Our Second Graders ... A: There may be many reasons for this from the temperature of the water to the size of the sugar ... | |
| Science project | 4/29/2008 |
| Q: My son is doing a science project on does ice cubes melt faster in water or air. How much ice cubes ... A: Sounds like you may be helping your son too much. It is very important that he does the experiment ... | |
| nail polish chemicals | 4/27/2008 |
| Q: are there any natural alternatives to the chemicals in nail polish. plant extracts or anything that ... A: Natural botanicals and minerals are also chemicals but perhaps not as processed. Even very ... | |
| how can i heat? | 4/22/2008 |
| Q: .. how can i heat somethi in the lab?wich what instruments?an what is heat A: Heat can come from different sources in the lab. 1) a bunson burner which uses a wick and alchol ... | |
| chemistry | 4/17/2008 |
| Q: why did Mendeleyev change the layout of the elements into rows and columns? When Mendeleyev changed ... A: He hypothisized that the weight of the elements were based on the structure of the elements ... | |
| Sink and Float | 4/10/2008 |
| Q: My daughter has a science project that requires her to find something that will float in water for ... A: What you are looking for is a open cell sponge. This will stay on the surface and as it absorbs ... | |
| EVAPORATION | 4/8/2008 |
| Q: mY 9 YEAR OLD PROJECT IS TO DETERMINE WHICH EVAPORATES QUICKER, WATER OR SODA? WE HAVE PLACED TWO ... A: I would use a specific amount of water and soda, perhaps no more then 1 liquid ounce of each. Place ... | |
| friction | 4/7/2008 |
| Q: How exactly does sliding or rolling friction have to do with snowboarding? A: The interface between the board or ski or sled and the snow, water or sand is the key to the speed, ... | |
| science | 4/5/2008 |
| Q: one is how do magnets attract different objects and the other is what type of objects do magnets ... A: Magnets attract materials which are magnetic. This means that they must fit into one of several ... | |
| 3rd grade Invention Convention | 4/2/2008 |
| Q: My son needs to create an invention that includes a Simple Machine - i.e. lever,wheel and axle, ... A: A simple invention/machine. Does your son have match box cars and perhaps a match box car track? ... | |
| helium | 4/2/2008 |
| Q: what does it comprise of and what makes baloons float A: Baloons float because they are filled with either Helium or hydrogen. Hydrogen can be rather ... | |
| aquatic mold growth | 3/29/2008 |
| Q: I tried to grow sugar crystals in water, but ended up with round, fuzzy, white/green growths ... A: It could be any number of moulds. Some colonial bacteria may take a similar form. Growing sugar ... | |
| Egg throwing Project | 3/26/2008 |
| Q: If you threw a raw egg over a house and it lands on the backyard lawn, will the shell break? A: Unprotected and landing on the lawn, the probability of the egg breaking is very high - 99.99% there ... | |
| science | 3/23/2008 |
| Q: Which would boil faster plain water or salt water and why? A: Plain water should boil faster but it may depend on many factors: 1) density of the salt solution ... | |
| science | 3/22/2008 |
| Q: which keeps soda colder cans or plastic bottles and why? A: That depends. If the containers are kept in a cooler with ice, the cans but out in the sun on a ... | |
| Science Fair Project: Helium | 3/21/2008 |
| Q: My name is Eric. I am doing an experiment on the effects of helium on a soccer ball when it is ... A: 1) Helium is an element. Like Oxygen and Nitrogen it is part of the air we breath every day. ... | |
| Forming my Hypothesis | 3/20/2008 |
| Q: My Science Fair is coming and I have my problem, but my hypothesis is hard to form. My problem is ... A: Yes, surfactants is what makes the bubble in detergents and soaps. Different kinds of surfactants ... | |
| stain removal | 3/20/2008 |
| Q: My science fair project I am researching is, "Which white material has easiest stain removal?", and ... A: My guess would be a synthetic like nylon or perhaps a polyester. But it is dependant on the nature ... | |
| water | 3/17/2008 |
| Q: What does water freze faster in? [Tin, Dixie cup, Tupperware, paper, Styrofoam, ceramic.] A: It would be a toss up between a "Tin" or dixie cup. Depending on the thickness of the paper, this ... | |
| 3rd grade invention | 3/16/2008 |
| Q: My 3rd grader needs idea's for an invention, that she can make from recyclable products. A: Here are several ideas, 1) a sound attenuation box. Take a box big enough for a radio to fit into ... | |
| Partical seperation | 3/13/2008 |
| Q: I am doind a project and need help. I need an examples of a household mixture that can separatre(eg. ... A: Most will be oil and water or oil and vinegar. Then you can also have a pulpy orange juice and the ... | |
| Science Fair Project: Bubbles | 3/12/2008 |
| Q: My name is Brian. I am investigating bubbles for a Science Fair Project. Can you help me by ... A: I will try to answer your questions but they may not be in numerical order. 11) a Bubble is ... | |
| Science | 3/10/2008 |
| Q: My daughter is in the sixth grade, and she needs to make a simple invention for her science fair. ... A: How about an "around the corner pea shooter" This uses a flexi straw and a wad of paper. You can ... | |
| lava lamp | 3/10/2008 |
| Q: Why water and oil do not mix? A: Oil and water do not mix because of a difference in the density of the two substances. In a lava ... | |
| Ionic, covalent, and molecular bonds | 3/7/2008 |
| Q: What experiment can I make to differentiate between ionic, covalent and molecular bonds according ... A: This is a difficult question to answer. There is very little differentiation between Covalent and ... | |
| freezing water | 3/7/2008 |
| Q: How does the material the container is made from affect the freezing time of water - plastic ,glass ... A: The container can make a big difference if it is a good conductor of cold. Aluminum for instance is ... | |
| Acid and Wood | 3/7/2008 |
| Q: My 4th grade son is having a hard time finding research on what types of household acids actually ... A: He has chosen a very difficult subject. Wood is made of cellulose a very tough material not easily ... | |
| plants | 3/6/2008 |
| Q: do living plants give off moisture? and if yes how? and how can you show it? A: Yes, Depending on the type of plant, it is how plants pull water out of the ground. Place a ... | |
| mirrors and reflectivity | 3/5/2008 |
| Q: I'm asking this question on behalf of my 8-year- old son - am not really able to find suitable ... A: Good question. A mirror is made with a very clear, very flat, with no faults - kind of float ... | |
| Teaching importance of Handwashing to elementary age | 3/4/2008 |
| Q: I am working with my RN clincal group at a local "KId Fest". We are trying to find fun ways to show ... A: Great Idea. The web site below may have some posters you can use but I'm not sure. there are ... | |
| remote lighter | 2/29/2008 |
| Q: I wanted to create a fireworks display that I could set off from a distance. I read somewhere that ... A: Fireworks of any type are dangerous and have been known to hurt, maime and even kill people. This ... | |
| Carbonated sodas | 2/27/2008 |
| Q: My Brother is conducting an experiment, which involves taking different Carbonated Sodas out of ... A: Why does soda freeze in the can but not in an open container? The carbonation has a lot to do with ... | |
| Static electricity | 2/26/2008 |
| Q: Why does polyester make alot more static than cotton fabric? ANSWER: Hi Kris, Polyester is a kind ... A: Some kinds of fibers including polyesters, wool, nylons and other synthetics develop a potential ... | |
| science experiment question | 2/25/2008 |
| Q: For my science project i was testing which liquid would melt a lollipop faster..... vinegar, ... A: a lollipop is made of sugar. Vinegar has water in it but it is mostly Acetic Acid. And though sugar ... | |
| making a candle | 2/24/2008 |
| Q: i was watching tv and i caught the end of this lady making scented candles. how do i make scented ... A: Ke-J You will need candle wax, colorant and scent. You will also need wick and a mould to pour the ... | |
| earth science | 2/23/2008 |
| Q: Why does salt water evaporate faster? Is it because sait water decrease the specific heat of water? A: You are basing the your question on what fundamental facts? Did you take a container of salt water ... | |
| model house | 2/15/2008 |
| Q: We'd like to do a homeschool unit study on construction while our new house is being built. One of ... A: Many colleges and Universities have schools of architecture and they build many kinds of models. ... | |
| science | 2/10/2008 |
| Q: what is radiation A: There are all kinds of radiation. Sun shine is a type of radiation and the heat from a radiator is ... | |
| SCIENCE | 2/10/2008 |
| Q: I AM IN FOURTH GRADE AND DOING A SCIENCE FAIR PROJECT THE PURPOSE IS TO FIND OUT IF IRON WILL RUST ... A: Water has naturally disolved gases in it. These gases are dependent on the source of the water. ... | |
| Soda carbonation-balloon method | 2/8/2008 |
| Q: I'm helping my daughter and her friend with a science project for school. They are wanting to ... A: This is a question of volume. When you do a displacement, the amount being displaced is equal to the ... | |
| science fair poster ideas | 2/6/2008 |
| Q: my daughter is in the 2nd grade and has a science fair poster due in a few weeks. the topic is "it ... A: So "WHAT COMES NATURALLY"? Breathing Eating Moving Hearing Plants growing, animals being born, ... | |
| science project | 2/6/2008 |
| Q: I am in grade 8 and have a science project assignment that has to do with mechanics and I have no ... A: You can combine magnetics (Physics) and mechanics. You can make a rheological solution using liquid ... | |
| Science fair project | 2/5/2008 |
| Q: For my science fair project my question is how does carbonation and the amount of it effect the rate ... A: The rate of freeze is effected by the amount of carbonation because as the water freezes, the ... | |
| science experiment with eggs | 1/30/2008 |
| Q: where can I find information on why and how an eggshell turns clear after heating it over a flame ... A: This is actually an optical illusion casued in part by defraction of light thru the water. The egg ... | |
| Science project paper | 1/29/2008 |
| Q: I have to come up with a reasearch paper topic related to my science project, ninth grade. It is ... A: There are different kinds of wood sealers but most work to "fill the pores" in the wood and the ... | |
| Freshwater & Saltwater | 1/29/2008 |
| Q: What is the theory for saltwater lakes? A: Suki, Most saltwater lakes have no outlet. In such cases, the evaporation of the water in the lake ... | |
| Yeast experiment | 1/29/2008 |
| Q: My son did a science fair project with yeast, sugar, baking soda, vinegar and salt to see which ... A: The vinegar took longer to react with the baking soda then the yeast with the sugar. Vinegar, an ... | |
| a question | 1/27/2008 |
| Q: what is the difference between a boy's and girl's feet??? A: Nothing anatomically. They have the same number of bones and toes and function in the same way. ... | |
| science fair project | 1/25/2008 |
| Q: I'm a fifth grader and i have to do a science project on either magnets,electricity or mixtures and ... A: How about a combination of the two. Magnets and mixtures? You can make a mixture of bits of metal, ... | |
| indium | 1/24/2008 |
| Q: AND MY TEACHER GAVE US A SCIENCE TERM PAPER THE ONLY THING IS I CANT FIND ANYTHING ABOUT HOW THE 2 ... A: There is very little information on these two scientists. The lead researcher, Ferdinand Reich was ... | |
| Protein Digestion | 1/23/2008 |
| Q: I am doing an experiment to test the effect of different pH levels on the digestion of proteins. The ... A: For the blank or control you will need to do two tests in the spectrophotometer 1) with water only ... | |
| Protein Digestion | 1/23/2008 |
| Q: I am doing an experiment to test the effect of different pH levels on the digestion of proteins. The ... A: Yes, make the gelatin using hot water and then pour this into each test tube. Allow it to harden. ... | |
| science | 1/23/2008 |
| Q: i am doing my science fair on which pop fizz last the longest and i want to know why does some fizz ... A: Carbon Dioxide or Carbonation is a gas that is forced into the soft drink (like Coke or Pepsi) to ... | |
| THAWING ICE con't | 1/23/2008 |
| Q: I had to post it as a new question because it said too many follow-ups. -_- Thank you for your ... A: IR is infared Radiation. It is part of the spectrum of light like a rainbow. In a rainbow, we can ... | |
| How temperature impacts helium | 1/23/2008 |
| Q: I am trying to find an answer to the above question. There are many websites that have the answer, ... A: Helium is a very light gas. The Helium molecule is very small, only Hydrogen is smaller. ... | |
| carbonation/dissolve experiment | 1/22/2008 |
| Q: My experiment deals with determining carbonation level by how much of a jelly bean coating is left ... A: You need to have a "before" and "after" measurement for the beans so that you have a comparison. ... | |
| THAWING ICE con't | 1/22/2008 |
| Q: I had to post it as a new question because it said too many follow-ups. -_- Thank you for your ... A: I was right, it has to do with the amount of disolved gas that is in the water and there could be ... | |
| WHICH THAWS FASTER? | 1/22/2008 |
| Q: If I put water that is 40 degrees and water that is 180 degrees in a -10 degree walk-in freezer and ... A: As I suspected, since you used boiled water, the water was effectively degassed so was much more ... | |
| WHICH THAWS FASTER? | 1/22/2008 |
| Q: If I put water that is 40 degrees and water that is 180 degrees in a -10 degree walk-in freezer and ... A: How long did the 71 and 180 sit out? Was the 40 right out of the tap? The reason I am asking is ... | |
| WHICK THAWS FASTER? | 1/22/2008 |
| Q: If I put water that is 40 degrees and water that is 180 degrees in a -10 degree walk-in freezer and ... A: I will make the assumption that they are being thawed at the same temperature and in roughly the ... | |
| science | 1/21/2008 |
| Q: i am doing my science fair on which pop fizz last the longest and i want to know why does some fizz ... A: I'm not sure about your question. When you say it lasts longer, do you mean once the bottle is ... | |
| Protein Digestion | 1/18/2008 |
| Q: I am doing an experiment to test the effect of different pH levels on the digestion of proteins. The ... A: Hmm, I'm not sure. I would suggest that you do something very simple like use gelatin. Pour gelatin ... | |
| science fair project | 1/18/2008 |
| Q: i need your help cause i have an idea but i don't know if it will work. so here is my question at ... A: I would think that it would loose carbonation very fast at both ends of the temperature range. If ... | |
| solar power | 1/16/2008 |
| Q: i have a project do and i was wonderinghow is solor power diffrent from the power we use now A: Solar power uses a special kind of crystal which takes light and converts it into electricity. This ... | |
| solar power | 1/16/2008 |
| Q: umm i have science progect bue on 1/18/07 wnd i need to what are the pros and cons on solar power A: The pros: Free energy, relatively low cost and with proper care can last many years The Cons: can be ... | |
| Project about taste and control groups | 1/16/2008 |
| Q: my eight-year old daughter is doing a science fair project about the preferred taste of butter. She ... A: She does not have a control group. A control group would be one that is given a product that has ... | |
| egg drop | 1/13/2008 |
| Q: i have to make a contraption that uses only 500 q-tips and two meters of string that holds an egg in ... A: Make a basket of Q-tips by weaving them together and use the string to put the basket together into ... | |
| science fair projects | 1/13/2008 |
| Q: I really nead a good science fair project/idea!! Last year, I went to many science fair competitions ... A: Since you seem to have had a wining idea last year, why not expand upon it and look at saliva, ... | |
| I need help finding a science project | 1/11/2008 |
| Q: I really don't know what type of science project to do and your department sounded good so can you ... A: If you answer these questions, then I can help you a lot better: 1) do you like plants? 2) do you ... | |
| Mini Pepsi Cans | 1/11/2008 |
| Q: Could you please tell me why the Mini Pepsi Cans float? What is so different about them compared ... A: It is all about density. The mini Pepsi cans are less dense then water. This means that they are ... | |
| effect of acid on tooth enamel | 1/10/2008 |
| Q: How do I measure the effect that different acids, like citric, lactic, or acetic, have on tooth ... A: Some postal scales which weigh both in ounces and grams may do the trick but if this is a problem, ... | |
| effect of acid on tooth enamel | 1/10/2008 |
| Q: How do I measure the effect that different acids, like citric, lactic, or acetic, have on tooth ... A: The best way is by weight. Take a known amount of egg shell by weight and then using the same ... | |
| electromagnetic | 1/5/2008 |
| Q: does an electromagnetic field or force have an effect on gravity? if yes how and in what ways? A: Gravity, Electromagnetism, The strong and weak atomic force are all part of the basic "forces" found ... | |
| Air polution and transportation | 1/4/2008 |
| Q: I want to do a science project explaining how transportation effects air pollution, mainly ground ... A: If you tell me the City and State you live in (assuming you are in the USA) I can put you in touch ... | |
| need help in science | 1/3/2008 |
| Q: what sodas have the most fizz and carbonation? A: Fizz and carbonation is one and the same. Which one has more? That is a very difficult question to ... | |
| Boiling liquids | 1/1/2008 |
| Q: My 9 year old son would like to do a science fair experiment comparing the boiling ... A: Boiling points for different substances is kind of tricky especially "mixtures" like liquid soap. ... | |
| Boiling liquids | 12/31/2007 |
| Q: My 9 year old son would like to do a science fair experiment comparing the boiling ... A: Good Idea but only one problem, all of these are basically water with stuff in the water. To ... | |
| Heating element | 12/21/2007 |
| Q: Is there a heating element such that I can evaporate a large amount of water? For a school project, ... A: There are many different ways to do this from using thin sheet heating to using a boiler (fired by ... | |
| the 5 kingdoms | 12/14/2007 |
| Q: having trouble with my science project. have to create a poster with pics and info about the plant, ... A: You can find lots of pics of these "families" on the internet. I am sure that you can also find ... | |
| chemistry | 12/14/2007 |
| Q: What is the difference between a bottle of water and a bottle of hydrogen and oxygen? A: Not much other then the fact that Hydrogen and Oxygen are both gases and that the bottle for the ... | |
| egg drop project | 12/12/2007 |
| Q: I want to understand how dropping an egg within straw and masking tape box/configuration that I ... A: That is amazing! Well done! 20ft is quite remarkable. It must have fallen just right. But to answer ... | |
| Temperature and container | 12/11/2007 |
| Q: My fourth grader is doing a science project on "Will your Coke stay colder longer ina Bottle or in a ... A: The conductance of temperature thru different materials would be a good starting place. Cold (or ... | |
| HELP! | 12/9/2007 |
| Q: two Quetions. 1- do u know of any other websites about fertilizer compared to the Growth of plants? ... A: There are several places on line you can look. First would be the manufactures web sites like ... | |
| science fair help | 12/5/2007 |
| Q: im science topic is: Will soda lose carbonation faster in hot or cold temperatures? but i dont know ... A: You can write about all of the different carbonated soft drinks and how some have more or less ... | |
| ap biology | 12/4/2007 |
| Q: Photorespiration decreases photosynthetic output by 50%. Would you expect the figure to be higher or ... A: To some degree this will depend on the variety of the cultigen and which of the more then two dozen ... | |
| science,conductors and insulators | 12/1/2007 |
| Q: What informational sites can i go on to get help writing a paper on these subjects? A: Sounds like you are doing something with electricity. Conductors allow the current to flow, like ... | |
| Science Fair | 11/28/2007 |
| Q: I am doing a project on which metals rust faster than others. Do you have any ideas to get me ... A: I would stick to one metal and then see what the effects are by subjecting the metal to different ... | |
| stain removal | 11/28/2007 |
| Q: I am doing a science fair project and i need some holp with these Q&A's What is the cemistry ... A: Stains can be organic or inorganic in nature. Such as blood or grass (organic) or clay or ink ... | |
| Science | 11/27/2007 |
| Q: If cotton is a solid how can we press it? A: I'm not sure I understand your question. You can "press" any solid. It does not matter if it is ... | |
| plant growth | 11/27/2007 |
| Q: does milk help the growth of plants? A: Well, milk is mostly water, some calcium and other organic substances. The plant would use some of ... | |
| Determining IDV, control, and DV | 11/27/2007 |
| Q: I'm doing a research project and my topic is if seed sizes (different legume seeds) determine ideal ... A: The key is the term "breaking the surface". These seeds may germinate at different rates due to ... | |
| Determining IDV, control, and DV | 11/27/2007 |
| Q: I'm doing a research project and my topic is if seed sizes (different legume seeds) determine ideal ... A: If all other things are the same, then depth is the variable you are testing. The "recommended" ... | |
| Determining IDV, control, and DV | 11/25/2007 |
| Q: I'm doing a research project and my topic is if seed sizes (different legume seeds) determine ideal ... A: I would use one type of legume like a string bean or pea. Then using the same potting soil, type of ... | |
| stomach digestion | 11/25/2007 |
| Q: For my Sci. fair topic I am going to observe how the digestion of protein varies at different pH ... A: This will require the use of Hydrochloride acid. This is a very powerful acid which needs to be ... | |
| solution | 11/24/2007 |
| Q: sir why turpenten oil is mixed in paint for painting? how trees get salts from soil? A: Turpentine oil is sometimes used as a mixing media for various pigments although this is not the ... | |
| acid base titration | 11/24/2007 |
| Q: I have some coursework, and I have to plan an acid base titration, and the sizes of apparatus I ... A: It has been a very long time since I have done acid-base titration. This is a method to determine ... | |
| Growing Algae | 11/23/2007 |
| Q: My friend and I are planning to do a project involving the cultivation of algae. However, we ran ... A: This is a very hard one to cover, clearly the detergents, mineral content of the water used (clean ... | |
| carbonation in soda | 11/21/2007 |
| Q: I need to find out how to measure loss of carbonation in a 2 liter bottle of soda at different ... A: Displacement is when a gas goes into an inverted container containing water. As the gas flows into ... | |
| carbonation in soda | 11/21/2007 |
| Q: I need to find out how to measure loss of carbonation in a 2 liter bottle of soda at different ... A: You will also have some amount of evaporation. This will be more pronounced in the one at 90 ... | |
| carbon and nitrogen cycle | 11/20/2007 |
| Q: as part of my A level geography course I've been asked to find out about the carbon and nitrogen ... A: There is loads of information on both cycles on the internet. Try the following web sites: ... | |
| physical science | 11/20/2007 |
| Q: what r the physical and chemical properties of the atom titanium in kids definition A: Titanium is a very important metal used in airplanes, rockets and other uses where the metal has to ... | |
| My science fair prodgect | 11/19/2007 |
| Q: My science fair project is which soda has the most carbonation, and I need to know what makes ... A: The carbonation is Carbon Dioxide Gas which is "forced into the soda just before it is capped or ... | |
| carbonation soda | 11/18/2007 |
| Q: . I'm going to use a balloon so the carbonation of a soda can fill it up but i don't know how to ... A: The fastest and easiest way is by water displacement. Once the ballon has the gas from the soda ... | |
| chemistry reaction | 11/18/2007 |
| Q: I have a problem with my science fair project. I just do not understand why my home made cleanser ... A: Baking Soda is sodium Bicarbonate a base. Vinegar is an acid. Hydrogen Peroxide is a base and dish ... | |
| domed mountain | 11/14/2007 |
| Q: what is the defind DOMED MOUNTAINS A: These are typically "rocks" which have been exposed to the elements and are the solidified ... | |
| pop explosion | 11/13/2007 |
| Q: my daughter is doing a science project,looking for the answer, which pop makes the biggest explosion ... A: I have to ask this question because, quite frankly I'm stumped. What do you mean by explosion? Do ... | |
| biology | 11/11/2007 |
| Q: How do amoebas:respirate,sense,grow,eat and excrete A: An amoeba is a single cell animal of remarkable complexity. The can live in some of the most ... | |
| Science Fair Project Question | 11/9/2007 |
| Q: My daughter is 11 (in Middle School) and she is doing her science fair project on which stays colder ... A: The research she needs to do is on thermal conductance of different materials like steel, aluminum ... | |
| sodas | 11/8/2007 |
| Q: I have to perform an experiment on which brand of cola soda; Pepsi, RC or Coco Cola keeps it's fizz ... A: 1) same size bottles 2) same temperature 3) same amount of soda left in the bottles 4) timer 5) ... | |
| science fair | 11/6/2007 |
| Q: Where can i find the protien albumin and ninhydrin isopropanol in Houston, TX? i need these ... A: There are several chemical supply houses in Houston. One being Fisher Scientific. However, you may ... | |
| CO2 in diet colas | 11/5/2007 |
| Q: How can I find out how much CO2 (carbonation) is in Diet Coke, Diet Pepsi, and Publix (local brand) ... A: This is a well kept secret by these companies. And in fact, each bottling location uses slightly ... | |
| science | 11/5/2007 |
| Q: how a bacteriophage attacks a bacteria cell? A: Micro Biology is not strong field for me buy as I understand it, a Bacteriophage is generally a ... | |
| soda project | 10/31/2007 |
| Q: My niece has a science project to determine if soda looses it's carbonation faster at room temp. vs ... A: This is not easy to do. The best way is bubble rate. Do cold carbonated drinks have more bubbles ... | |
| SALT WATER EFFECT ON BEAN PLANTS | 10/29/2007 |
| Q: You gave us the info for the effect of salt water on bean plants. What do we do when all of our ... A: Wait till they have all germinated. It should only be another day or two. If it does not germinate, ... | |
| ice | 10/24/2007 |
| Q: if i took 4 plastic cups and put construction paper on 1 cup,put plastic wrap on another and put a ... A: That depends on the temperature and the colors used. Also the kind of plastic the cups are made of ... | |
| Science fair project | 10/21/2007 |
| Q: My child is in first grade and wants to do his project on which soda pop has the most fizz. He is ... A: First of all I would recommend using bottles of pop vs. cans. With a can, you can't see the ... | |
| SCIENCE FAIR HELP!! | 10/19/2007 |
| Q: My 7 year old son has decided to enter the school science fair. I am not science minded, and he is ... A: YEs, Just two eye droppers per day per plant. Things to keep an eye on: If your house is very dry ... | |
| Science Progect | 10/19/2007 |
| Q: How long does it take for a 2 liter bottle of soda to go flat? ANSWER: Hi Allison, That depends on ... A: Ok, a 2L bottle of Coke left open on the counter vs. Pepsi. I would say that the Pepsi would go ... | |
| pepsi/diet pepsi float-sink experiment | 10/19/2007 |
| Q: I have to make my own experiment for determining why a can of pepsi sinks in water and a can of diet ... A: Since 95%+/- is water, what you have left is the "syrup" used to make the soft drink. This is mixed ... | |
| Science Progect | 10/19/2007 |
| Q: How long does it take for a 2 liter bottle of soda to go flat? ANSWER: Hi Allison, That depends on ... A: Was the cap put back on? It will go flat faster at room temperature then in the frige. The reason ... | |
| pepsi/diet pepsi float-sink experiment | 10/19/2007 |
| Q: I have to make my own experiment for determining why a can of pepsi sinks in water and a can of diet ... A: An interesting idea. Sure, it should work. But weigh each one very carefully. Remeber to subtract ... | |
| Science Progect | 10/19/2007 |
| Q: How long does it take for a 2 liter bottle of soda to go flat? A: That depends on several factors: 1) was the bottle allowed to remain open to the atmosphere (cap ... | |
| PLANT; ROOTS,STEMS,AND LEAVES | 10/18/2007 |
| Q: WHY IS IT IMPORTANT FOR THE ROOTS OF MANY DESERT PLANTS TO REMAIN NEAR THE SOIL'S SURFACE RATHER ... A: This may seem counter intuitive. But since it rains so infrequently, the plants of the desert have ... | |
| SCIENCE FAIR HELP!! | 10/18/2007 |
| Q: My 7 year old son has decided to enter the school science fair. I am not science minded, and he is ... A: Good choice. Ok, here are the instructions. They need to be followed carefully and your son ... | |
| SCIENCE FAIR HELP!! | 10/17/2007 |
| Q: My 7 year old son has decided to enter the school science fair. I am not science minded, and he is ... A: The easiest project to do is one with growing beans. Go to the closest garden shop or home supply ... | |
| contraption | 10/7/2007 |
| Q: My son has to build a contraption that bounces a ping pong ball into a container. It must bounce 12" ... A: a ramp down which the ball rolls, falls off the end hitting a wedge bouncing 12" up hitting a see ... | |
| science | 10/5/2007 |
| Q: How Do You Make A Baloon Method That Test The Measure Of Carbonation In Soda A: best way to do it is to take a cap from an old bottle, drill a hole into it and then put the ballon ... | |
| 7th Grade Science Project | 10/2/2007 |
| Q: My son has been asked to build a replica of Noah's Ark to scale and have it float in a pond for 30 ... A: I would suggest Bass wood vs. balsa. Balsa floats well but it is so light that it could be blown ... | |
| please help me with my homework | 9/30/2007 |
| Q: i am really stuck on my homework please can you help me. this is what my sheet says to do Describe ... A: Sorry, A volital is an oil with a very low evaporation point. The complex oils in coffee ... | |
| please help me with my homework | 9/29/2007 |
| Q: i am really stuck on my homework please can you help me. this is what my sheet says to do Describe ... A: The hot water acts as a solute. I may dissolve some constiuants of the coffee and then gives you a ... | |
| IB Biology: Yeast Fermentation Lab | 9/29/2007 |
| Q: We recently performed a yeast fermentation lab in class to determine the effects of different sugars ... A: You are right about them having the same molecular formula but structurally they are very different. ... | |
| methods of seperating a mixture | 9/28/2007 |
| Q: can you please explain to me about the different methods adopted for separation of different ... A: I am sorry but this is some what out side of my area of expertise from a chemistry perspective. ... | |
| acid | 9/24/2007 |
| Q: Television commerecials portray the "acid stomach" as needing immediate R-O-L-A-I-D-S. is the ... A: Yes, the stomach produces a weak form of hydrochloric acid to help in the digestion and breaking ... | |
| ice | 9/24/2007 |
| Q: i read on here that Water for instance in the frozen state is less dense then liquid water which is ... A: This is a very interesting question. It may have a very large impact on life in that creatures and ... | |
| matter | 9/21/2007 |
| Q: How do you measure the mass of gases? A: It is typically done by volume and pressure. So if you blow up a ballon with helium and you know ... | |
| Electricity from Magnets | 9/20/2007 |
| Q: My daughter and I saw an experiment at a science museum where a magnet was dropped down a clear tube ... A: This sounds like a Faraday device which uses small incandecent or LED type bulbs. The movement of ... | |
| Soda Carbonation | 9/16/2007 |
| Q: my name's Jhanna and I am doing a Science fair experiment for school. I am in 7th grade and I can't ... A: Have you done the experiment yet? The purpose of a science fair experiment is to learn and ... | |
| wood and water | 9/13/2007 |
| Q: My God-son has to start his science experiment and he chose water and wood. my question is where can ... A: Well that is the whole purpose behind the experiment so that the student does the experiment and ... | |
| density | 9/10/2007 |
| Q: Explain how density is affected by temperature, pressure, and phase S,L,V in water and other ... A: The Density of a substance is dependant upon the nature of that substance. So for instance if you ... | |
| Amoeba | 9/10/2007 |
| Q: What is Amoeba's function?? A: An Amoeba's function is similar to that of other microscopic animals. They eat. Most every thing ... | |
| Measuring carbination in soda | 9/7/2007 |
| Q: My 6th Grade daughter wants to get started but we are not sure how to. She doesn't think the balloon ... A: Most any kind of thermometer will work. A digital works the best as it is easy to read and they are ... | |
| Measuring carbination in soda | 9/7/2007 |
| Q: My 6th Grade daughter wants to get started but we are not sure how to. She doesn't think the balloon ... A: The baloon method does work reasonably well but I have a process that uses water displacement. Take ... | |
| chemestry & biology | 9/7/2007 |
| Q: What are the 4 elements that make up most living things? Do you know the 3 classes of biological ... A: most living things are mostly made of water (H20), carbon and calcium or silica. (plants and animals ... | |
| psychology | 9/6/2007 |
| Q: What is the cause of axiety from the behavioral, psychoanalytic, Biolgical, and cognitive ... A: I am not qualified to answer this question. But, axiety can be caused by several things both real, ... | |
| project | 9/3/2007 |
| Q: I need to have a bibliography information on my project Can and egg withstand a greater force from ... A: I would recommend that you go to www.google.com and put in "eggshell strength" and take a look at ... | |
| light switch | 8/28/2007 |
| Q: when was the light switch invented. when did it change from the push button kind to the switch we ... A: The push button switches were first used around 1924 with the electrification of houses and other ... | |
| Solar Cooker | 8/27/2007 |
| Q: what is a method to measure the amount of energy a solar cooker consumes and produces? ( I was ... A: The amount of solar energy which falls on the Earth is well known. It can be found in wikipedia in ... | |
| science | 8/23/2007 |
| Q: how do you think theorest different from facts? A: A theory looks at information, facts and assumptions as well as concepts and formulates a question ... | |
| freezing water in different containers | 8/20/2007 |
| Q: I would like to know if the shape of a container has a positive/negative effect on freezing water ... A: A slanted wall, provides more surface area. Not much but enough to make a difference. It also makes ... | |
| freezing water in different containers | 8/20/2007 |
| Q: I would like to know if the shape of a container has a positive/negative effect on freezing water ... A: Several key important issues when freezing water: 1) material the container is made of (how ... | |
| saltwater/freshwater | 7/26/2007 |
| Q: How do bodies of saltwater and freshwater not mix when all of the worlds water is supposed to be ... A: The Oceans are salt water. Most lakes and rivers are essentially fresh water. There are a few lakes ... | |
| Geo-Technical Engineer | 7/17/2007 |
| Q: Please tell me: What is a Geo-Technical Engineering? What does a Geo-Technical ... A: Sanker, This comes from Wikipedia. HOpe it helps: Geotechnical engineering is the branch of civil ... | |
| Corrosion?? | 6/25/2007 |
| Q: what is corrosion? ANSWER: Hi Izzy, A very good question. Corrosion is in general the oxidization ... A: Its not the water itself but the disolved oygen in the water that reacts to the iron and causes the ... | |
| science with my son | 6/25/2007 |
| Q: how can we light a lightbulb using a wire and battery? A: That depends on the lightbulb. If it is a flash light bulb, NO PROBLEM but not so with a house hold ... | |
| Corrosion?? | 6/25/2007 |
| Q: what is corrosion? A: A very good question. Corrosion is in general the oxidization by chemical reaction of a clean metal ... | |
| ligt bulb with alternative power source | 6/15/2007 |
| Q: I'm Keegan! I really need to know how I can make a light bulb using another power source besides ... A: You will need the following items: 1) Piece of Copper (can use a penny) 2) piece of Zinc ( can get ... | |
| ligt bulb with alternative power source | 6/14/2007 |
| Q: I'm Keegan! I really need to know how I can make a light bulb using another power source besides ... A: That depends on what kind of light bulb it is. If it is a flash light bulb, then you can use a ... | |
| chemistry | 6/14/2007 |
| Q: what is the role of chemistry to society and industry? A: Chemistry plays a very important role in our lives and is a key industry on a global scale. With ... | |
| chromatography | 6/13/2007 |
| Q: what is the reason why police use chromatography can I have a full reason A: The police use many different forensic tests including Chromatography. This test allows the ... | |
| e;ectroplating quarters with copper | 6/5/2007 |
| Q: My 4th grader is doing a project electroplating quarters. We set it all up last night with ... A: Are you using the Blue Windex? When you read the lable make sure that it contains Copper Sulfide. ... | |
| help! | 6/5/2007 |
| Q: Heyya, In D&T (design and technogly) my class and i have to build a house. What can i use as walls. ... A: There are many materials you can use but I built a house using bales of straw with a friend of mine. ... | |
| space | 6/2/2007 |
| Q: what is the largest item in space A: Not an easy question to answer. It depends on what part of space, if you are talking about a man ... | |
| Science | 5/19/2007 |
| Q: Why does our taste buds change? I use to like carrots but now I don't. A: Taste Buds change every 5 to 7 years and during these tansitional periods (lasting up to 6 months) ... | |
| science | 5/16/2007 |
| Q: please can you tell me what is the noisiest invertebrate in the world? A: There are several insects which make a lot of noise like the Cicada which can be heard for quite a ... | |
| burglar alarm | 5/16/2007 |
| Q: I recently read a book with my 4th grade students in which the main character builds a burglar alarm ... A: Go to Radio Shack and get a double D cell battery holder with wire leads. Then get a buzzer ( they ... | |
| burglar alarm | 5/16/2007 |
| Q: I recently read a book with my 4th grade students in which the main character builds a burglar alarm ... A: Here are some ideas: 1) fill tin cans or soda cans with small pebbles which are then attached by ... | |
| Science Fair | 5/15/2007 |
| Q: My son's SS teacher is in charge of this school wide Science Fair Project. He had to determine which ... A: Not much time t o do this in Stephanie, Using the computer, you can write the verious items ... | |
| CHEMISTRY FOR KIDS | 5/13/2007 |
| Q: the question was that we have to desgin a book for kids between the ages of 8-12 about THE GAS LAWS ... A: If you go to www.google.com and put in "Gas Laws" and click, a whole list of information comes up. ... | |
| Dome Mountians | 5/7/2007 |
| Q: My daughter has to do a project where she has to make a Dome Mountian and i cant find any ... A: There are several famous Dome Mountians, Ayers Rock, Australia Dome Mountian, Georgia, USA 1/2 ... | |
| Water | 5/6/2007 |
| Q: What is it made of? and How does rain fall? A: Water is made of 2 molecules of Hydrogen written as H2 and one molecule of Oxygen written as "O". ... | |
| eco system aquatic | 5/4/2007 |
| Q: 1.an engrey flow involving plants and animals 2.clear water has low mmeasurement of this ... A: 1 the energy flow between plants and animals is that the plants grow and get energy from the sun. ... | |
| water tension | 5/3/2007 |
| Q: why does detergent effect water tension ANSWER: Hi James. Well the most important thing to remember ... A: I have never done the experiment. Sounds like a good one for you to try and then let me know how it ... | |
| water tension | 5/3/2007 |
| Q: why does detergent effect water tension A: Well the most important thing to remember is that it is nolonger pure water, it is now a solution of ... | |
| cooked fish balls | 4/29/2007 |
| Q: why do cooked fish balls float on water A: A raw fish ball (depending on what is put into it) contains fish oil which is heavier then water ... | |
| VERY IMPORTANT! PLEASE HELP!! | 4/25/2007 |
| Q: i was searching the internet because me and my friend are doing a science fair project on ... A: This may be a bit advanced for you but you could learn a lot from the process. What concerns me are ... | |
| Science fair project | 4/24/2007 |
| Q: After completing her experiment, my niece now has to write a research paper based on her experiment. ... A: I am familiar with this experiment but I need to know some particulars: 1) Was it a metal skewer? ... | |
| science fair project for 2nd grade | 4/18/2007 |
| Q: Help with a prject about porisity in rocks A: You need help with the Porosity of Rocks? Can you tell me what kind of rocks you plan to use and ... | |
| science fair popcorn project | 4/14/2007 |
| Q: Quick question, my project is which popcorn pops best, counting how many kernels are left.. what ... A: For a 4th grader, as long as you want. But be sure to "cite your references". In other words, if ... | |
| science fair popcorn project | 4/14/2007 |
| Q: Quick question, my project is which popcorn pops best, counting how many kernels are left.. what ... A: You should find out how many kernels are used in a typical bag of microwave popcorn of different ... | |
| Science Fair | 4/12/2007 |
| Q: I would like to see which type of drink will spray the farthest when shaken. Would this be testing ... A: Yes, it will depend on the amount of carbonation. But it is the experimental set up which may be ... | |
| grade 8 science fair project | 4/11/2007 |
| Q: Do you have any information on building a boat navigation lock for a school project. A boat must ... A: You will need 2 pcs of plexiglass, wooden board (long enough to hold the whole project), a small ... | |
| science project | 4/10/2007 |
| Q: Can you give me a idea on what invention a 9 year old can make for his science project? A: David, He can invent a machine to put a pen in a cup. A kind of Rube Goldberg kind of machine. A ... | |
| 3rd Grade invention | 4/10/2007 |
| Q: Ralph, Can you suggest any inventions for our 3rd grade that are Easy? The invention must include ... A: These are always a bit tricky. But a "rube Goldberg" kind of machine is usually the best. Using a ... | |
| Gas | 4/9/2007 |
| Q: What happens to particles when there is in an increase of temperature of gas? A: As the temperature goes up, the gas molecules become more excited and this generally causes the ... | |
| Can you help me???? | 4/7/2007 |
| Q: Ummm...Hi I'm in 7th grade and I really need help on my science prodject. You see I used an egg to ... A: I hope that you will get this in time, I have been out of town with out computer access for a week. ... | |
| science expo | 4/2/2007 |
| Q: please explain how eggshels are very similar in composition to teeth enamel A: Egg shell and tooth enamel are made of nearly the same stuff, Calcium Carbonate. Just like sea ... | |
| ice melting in coke and water | 3/29/2007 |
| Q: I am doing a science fair project on what ice melts faster in, coke or water. In my experiments the ... A: I will make the assumption that the temperature of the two liquids are identical and that the ... | |
| my daughter needs an invention idea | 3/28/2007 |
| Q: my daughter is in 3rd grade and needs a really good invention idea that is simple to make. A: How about a solar powered hat fan? Or a drink cooler using a double walled system where between the ... | |
| question | 3/28/2007 |
| Q: what will float on water but sink threw the oil and just float in the middle?(of our mixture of oil ... A: There are many things which float on water, like most wood species and as you have discovered, oil. ... | |
| Relation of sugar and CO2 levels in soda | 3/25/2007 |
| Q: My 4th grader is doing a science fair project involving detecting CO2 levels in a variety of sodas. ... A: Sugar levels and CO2 levels are not related to each other. Different companies and soda flavors ... | |
| Science Project.. | 3/24/2007 |
| Q: What type of grass reduces erosion the best? and what is the defintions of Independent Variable and ... A: Most grasses do a good job of reducing erosion but the better ones send out rysomes (underground ... | |
| science fair project | 3/22/2007 |
| Q: can you give me some tips or ideas on how to build a burglar alarm A: Do you want this to be an electronic burglar alarm, or something less technical or down right ... | |
| invertebrates | 3/21/2007 |
| Q: how do invertebrates squirm fast if they don't have bones. if available my i have references for ... A: That depends on the invertebrate. Insects for instance have exoskeletons which allows them to move ... | |
| infection control | 3/21/2007 |
| Q: how does urine carry and spread infection ANSWER: Hi Marie, Typically no unless the person has a ... A: Blood carries all kinds of stuff from white blood cells which battle with infections to the ... | |
| infection control | 3/20/2007 |
| Q: how does urine carry and spread infection A: Typically no unless the person has a UTI or urinary tract infection. In such cases, some of the ... | |
| 5th grade science fair project | 3/19/2007 |
| Q: My daughter is testing which whitening toothpaste works the best. We cannot fing a good substance ... A: Contact your local Dentists and ask them to put you in touch with the folks that make dentures. ... | |
| plant growth | 3/18/2007 |
| Q: I'm doing a science project on which plant will grow better using cola, diet Pepsi, Gatorade, Mt. ... A: Yes, sugar can be used as a kind of poor quality fertilizer. It does not carry enough nutriants to ... | |
| egg dorp | 3/18/2007 |
| Q: how do i drop an egg from 10 feet by using an apparatus that i have to build? A: This is a classic build to protect the egg experiment. This year my son used straws to construct a ... | |
| plant growth | 3/18/2007 |
| Q: I'm doing a science project on which plant will grow better using cola, diet Pepsi, Gatorade, Mt. ... A: Yes. However, too much of a good this can be bad. To much sugar will kill the plants too. The ... | |
| plant growth | 3/17/2007 |
| Q: I'm doing a science project on which plant will grow better using cola, diet Pepsi, Gatorade, Mt. ... A: Most of these contain either acids or salts. In the case of the carbonated drinks these contain ... | |
| science fair porject | 3/17/2007 |
| Q: My name is Melanie. I am in 4th grade. I have a science fair project this April 11. I am required to ... A: Do you like to grow plants? or how about turning a dime to look like it is made of copper? How ... | |
| Watt Volts? | 3/17/2007 |
| Q: Dial up modem -- 500mA Video card -- 2A Hard disc -- 750mA DVD drive -- 2.5A The rest of the comp -- ... A: You are asking about Ohm's Laws. volts = current in amps x resistance in ohms volts = power in ... | |
| solids,liquids,and gases | 3/13/2007 |
| Q: What are two examples of a solid,liquid,and a gas? A: 1) Ice, water and steam (H20) 2)Dry Ice, Liquid CO2 and CO2 gas. There are millions of solids ... | |
| Soda Carbonation | 3/11/2007 |
| Q: My daughter in the 4th grade has a science project. Wants to know if the ingredients in soda have ... A: I'm not sure that this experiment will show what you hope. The biggest issue is the amount of CO2 ... | |
| Karyotypes | 3/11/2007 |
| Q: With all due respect,are you sure you read my question correctly? Which would a Karyotyping be ... A: Donald, I stand corrected. I did misread your question. I appologise. Down's as with Turner's ... | |
| magnets as conductors | 3/7/2007 |
| Q: When testing conductors of electricity, we noticed that even though magnets are metal they are not ... A: Electricity and magentism are like first cousins. You can make something magnetic using electricity ... | |
| Dry like nail polish | 3/3/2007 |
| Q: Is there anything tasty or flavored that you can put on your nails that dry like nail polish? A: There are some novety products that are like lollipop candy that can be put on nails. It takes ... | |
| How do you string egg shells so they won't break? | 3/2/2007 |
| Q: I am trying to suspend eggshells in different solutions to see how they are affected but I am having ... A: Sounds like an interesting experiment. There are several ways to do this. You can hard boil the ... | |
| science | 2/28/2007 |
| Q: if a farmer did not plant corn one year which organism in the food web above would be most affected? A: There are a lot of variables to take into consideration. First is the farm itself. Are there a lot ... | |
| daddy long legs | 2/18/2007 |
| Q: My teacher says daddy long legs are not spiders because they only have six legs and one body part. ... A: There are two types of "daddy long legs" Both belong to the Arachnids group both have eight legs and ... | |
| Science Project experiment - density | 2/9/2007 |
| Q: My Son is doing a science experiment about density. The experiment goes as follows: 1)Fill an ... A: McClain, Density is one of those strange subjects which sometimes throws people for a loop. Take ... | |
| Science Fair | 2/8/2007 |
| Q: I have a Science Fair project coming up, and I was thinking of doing something with Bacteria (agar) ... A: Doing a project with bacteria is quite advanced. If you are a high school student with an intent to ... | |
| science | 2/1/2007 |
| Q: what is the relationship between weight and gravity? A: THere is a direct relationship. What is 1 pound on the Earth is 1/6 of a pound on the Moon because ... | |
| cells | 2/1/2007 |
| Q: Can cells grow in poison? A: It depends on the type of cells, the poison and the environment in which this is taking place. ... | |
| batteries /lightbulb | 1/27/2007 |
| Q: The imformation on how to light a lightbulb with soda was very helpful.I also have a question for a ... A: Yes you can light a light bulb with a battery. IT depends of course on the type of light bulb and ... | |
| Science fair projects | 1/26/2007 |
| Q: my kid has to do a project and she is in fifth grade didn't even come up with an idea yet i've ... A: I have lots of ideas for science fair projects. What does you child like? Plants, chemistry, ... | |
| Heating Elements | 1/25/2007 |
| Q: Is it possible to use batteries to heat an element in order to boil water? If yes, what element ... A: Juane, There are battery powered heating elements used for this purpose. Typically however, these ... | |
| Alka-seltzer | 1/20/2007 |
| Q: Not to be rude or anything I am a ms. And I'm trying to win a science fair. I want my experiment not ... A: Sorry Ms. Potato. AS is Alka-Seltzer. As since you are in 7th grade, I admire your drive and ... | |
| what freezes quicker | 1/19/2007 |
| Q: i what to know what freezes quicker saltwater or sugarwater this is for a six grade science fair A: Sher'micheal If this is for a science fair, then you need to do the experiment!! But I can give you ... | |
| I have a Question | 1/18/2007 |
| Q: Does ice melt faster in air or water? A: Faviola, There are a lot of factors which impact the melting of ice. In the air, if the relative ... | |
| science fair- catapaults | 1/18/2007 |
| Q: Is the winch the source of a catapaults power? A: The source of power for most catapaults is the heavy weight and "falling" as a result of gravity. ... | |
| Marble Clock Project | 1/16/2007 |
| Q: How do you make this project? The school gave us items to use , masking tape, newspaper ane a ... A: A place to some research on the web is "rolling ball devices". If you go to www.google.com and put ... | |
| marble clock science fair project | 1/16/2007 |
| Q: My son was given a project to do on building a marble clock. He can only use newspaper, masking tape ... A: As a child, I had a toy made in Germany which used a marble and it rolled down a zig zag track ... | |
| marble clock science fair project | 1/15/2007 |
| Q: My son was given a project to do on building a marble clock. He can only use newspaper, masking tape ... A: Mr. James, Holy Smokes!! Does it need to keep time with any accuracy? The way to do this is with ... | |
| science project | 1/15/2007 |
| Q: my fourth grader is doing a project on which evaporates faster- pure tap water or salt water. Where ... A: First of all, tap water is far from "pure", for that you need to buy distilled water like you might ... | |
| Stain removal | 1/12/2007 |
| Q: I have another question for you. You told me in the last answer how Oxyclean gets rid of stains. ... A: Clorox or other kinds of bleach uses Chorine in stead of Oxygen and like Oxygen from Oxyclean, ... | |
| Science Fair | 1/11/2007 |
| Q: I have a science fair project coming up, and I was wondering if you knew of any good ideas to do ... A: Plants are easier to deal with then fish and the results are easier to explain. You can grow them ... | |
| Stain removal | 1/9/2007 |
| Q: How do stain removers work to remove stains. I need to know how they literally are removed at ... A: It depends on the stain remover. Many use specific enzymes which "eat" proteins and break them down ... | |
| soda top | 1/4/2007 |
| Q: the blue piece under the lid of a twist top soda, if you remove it does the soda go flat faster? if ... A: That simple plastic disc is the "secondary seal" for the bottle. Once the bottle is opened, this ... | |
| Solids, Liquids, Gases | 1/1/2007 |
| Q: How does sound travel through solids liquids and gases? A: Sound comes in the form of "waves". So when a sound is made, it can travel through many forms of ... | |
| Question regarding egg drop | 1/1/2007 |
| Q: My name is Zain. In my Science class, we have to make an egg dropping device. This device will hold ... A: find some closed cell foam like the kind used to make temperpedic matraces. You can actually get ... | |
| gravity | 12/31/2006 |
| Q: how does weight of an objects affects its gravitational pull towards the earth? Can you explain this ... A: This is out side of my area of expertise and very much in the area of physics. I don't know of any ... | |
| What are ... | 12/30/2006 |
| Q: i'm doing a project at school to do with Micro-organisms, and i need to no about them for a home ... A: There are many types of micro-organisms from bacteria to multi-cellular plants and animals. They ... | |
| Chemistry | 12/26/2006 |
| Q: Well. Could you tell me about the other two and describe the methods?How do you measure soda ... A: 1) Take a length of plastic tubing (like the kind used in fish tanks) and using the lid from a used ... | |
| Chemistry | 12/26/2006 |
| Q: How do you measure soda carbonation using household products? I don't understand your previous ... A: There are several ways to measure carbonation in soda. One takes some engineering so that you can ... | |
| projects | 12/15/2006 |
| Q: were do I find balloons and carbonation as a project A: Sounds like you are on your way to develop the project on your own. I'm not sure if there is any ... | |
| Life Chemistry And The Life Of Cells | 12/13/2006 |
| Q: Hey I’m doing home school and I’m having some problems with my work. Can you help me check my ... A: Most of your answers are correct. I will make suggestions on those that are not. Also there are ... | |
| germs | 12/7/2006 |
| Q: Can germs (i.e. cold germs) get germs? A: Germs come in two primary types: 1) Bacterium and 2) Virusus. Bacterium are a living self ... | |
| carbonation in soda. | 12/4/2006 |
| Q: How can you determine the carbonation in soda? How do you measure it? A: Most kinds of soda are "saturated" with Carbonation (CO2). This is done at the plant just before ... | |
| source | 12/4/2006 |
| Q: In a science project, what is the source? A: The source is the background information for the test you plan to do. This would be the research ... | |
| science for grade 1 | 12/1/2006 |
| Q: I need to find 3 projects for my sister and i cant find 1 more so does anybody know of any good ... A: 1) Diet Soda with Mentos, rock salt, sugar, Splenda. See which one produces a bigger fountian of ... | |
| I need help. | 11/28/2006 |
| Q: Which brand of soda has the most carbonation? A: Most sodas have the same amount of carbonation. They are saturated to the point where no more CO2 ... | |
| magnets | 11/26/2006 |
| Q: How do you do magnetic experiments? Do you like magnetic experiments? Do you like physical ... A: I like magnetic experiments a lot. Magnetisim is one of my favorite areas of physics. If did not ... | |
| density | 11/22/2006 |
| Q: i got to do a density report but i need more information on density could you help me ? A: I will try to help you but your question is very broad. First of all density is how tightly the ... | |
| Insulating a shoebox | 11/20/2006 |
| Q: Hey, In school, I am doing a project to insulate a shoebox with two uncovered windows 5L X 2W. I am ... A: I'm sorry it took me a while to answer, I've been out of town. Styrofoam is the best stuff to use ... | |
| Boiling water | 11/4/2006 |
| Q: in my high school science class, we have a group project to boil water without fire. To produce ... A: there are several ways to boil water. Using a Solar oven, heating rocks on a fire and then placing ... | |
| How can I insulate a model house. | 11/1/2006 |
| Q: In my science class we have to make a model house and insulate it. we also have to show if it does ... A: You can demonstrate this several ways. Using a small 40 watt light bulb as a heat source inside of ... | |
| Carbon cycle | 10/31/2006 |
| Q: For a school science assignment our class has to explain the carbon cycle. But I just don't get it!! ... A: The Carbon Cycle is the biochemical process by which carbon is exchanged between the atmosphere, ... | |
| Measuring Carbonation Using Everyday Household Products | 10/26/2006 |
| Q: How do you measure soda carbonation using everyday household products? A: Using a large mixing bowl and a measuring cup, a length of fish tank tubing and silly putty. Fill ... | |
| SCIENCE PROJECT | 10/26/2006 |
| Q: WHICH FREEZE FASTER? SUGAR WATER, SALT WATER OR PLAIN WATER WHICH WEB SITE CAN I USED TO DO MY ... A: I noticed that you scored my answer with a 7 for knowledge and 7 for clarity. This is a science ... | |
| carbonation | 10/25/2006 |
| Q: i need some major previously found info carbonation in club soda for a review of the literature. do ... A: Carbonation in most sodas are very similar in terms of volume. This is because the water containing ... | |
| MAGNETS | 10/14/2006 |
| Q: What are Magnets? What are some good magnets experiments which can be done at home? I am Eight ... A: Magnets are generally made out of iron or a combination of iron, niobium and other metals which can ... | |
| egg drop experiment | 10/14/2006 |
| Q: I need some complex answers cus it looks kule for an assignmant there are no limits to my materials ... A: 30 x 30 x 60 what? mm? inches? feet? You can use nearly any material for an egg drop. I used ... | |
| Carbonation in Soda | 10/11/2006 |
| Q: I need a really detailed way of testing carbonation in soda. Can you please help? A: I'm not sure what you mean by testing carbonation in soda. Do you mean how much is in soda? That ... | |
| sceince fair | 10/10/2006 |
| Q: ok, what makes nail polish dry so hard, what type of ingrediant is in it??????????? A: There are several polymers (kinds of plastics) in nail polish. These plastics dry very hard (like ... | |
| carbonation | 10/6/2006 |
| Q: i saw the measuring of carbonation answer, how do you know how much carbonation is in there? how ... A: Well I can't email you with out your email address. But that's ok. There are several ways to ... | |
| goldfish behaviour | 10/3/2006 |
| Q: I have 4 goldfish in a 2ft. fishtank. In the last 24 hours one of the larger fish has been chasing ... A: Sounds like a problem of territoriality. The one doing the chasing may be going after another male ... | |
| hamster power | 10/3/2006 |
| Q: is it possible for all electric power to be replaced by all of the earths domestic hamsters? A: One would think so given the time they spend in their excercise wheels. But, unfortunately, no. ... | |
| science | 10/3/2006 |
| Q: friction is a force that slows things that are moving horizontally on the ground.What are some ... A: Not only horizontally but vertically and every other way. The only place you don't find friction is ... | |
| Making smoke with chemicals | 10/3/2006 |
| Q: Good Morning! I have a 7 year old son who has a extreme interest in science, and I'm trying to keep ... A: Yes, it is the same stuff and should work in the same way. Since I don't know where you live, I ... | |
| Making smoke with chemicals | 10/2/2006 |
| Q: Good Morning! I have a 7 year old son who has a extreme interest in science, and I'm trying to keep ... A: Muriatic acit and ammonia will produce a rather noxious smoke which will be rather unpleasent for ... | |
| mineral volume in rocks vs. powder | 9/29/2006 |
| Q: I really appreciate it. I'll try it with the scale. I wonder if there is air inside the rock. i'm ... A: I"m not sure why you need money but remember, since you know that it is fools gold (Pyrite), it ... | |
| mineral volume in rocks vs. powder | 9/29/2006 |
| Q: I'm 7yrs old. I've been grinding up fool's gold rocks to dust and i'm noticing that such a small ... A: It depends on how you are grinding it up. It could be that if you are using a grinding stone on a ... | |
| INVENTION CONVENTION:HELP!!!!!! | 9/28/2006 |
| Q: !! i'm really intrested in the last idea u gave me and the 2nd one sounds reallyyyyy cool!!! I like ... A: Glad I could help. On the first idea, you can use flip flops and using the same kind of foam cut ... | |
| science | 9/27/2006 |
| Q: what is matter is? A: A very good question. What is Matter. Matter is any substance from the bark of a tree to water to ... | |
| INVENTION CONVENTION:HELP!!!!!! | 9/27/2006 |
| Q: I'm a 7th grader in chicago illinois.This year it is PERMITTED that we enter the Invention ... A: How about an automated "toe jam" removal device? This would look kind of like a flip flop sandle ... | |
| nailpolish ingredients | 9/25/2006 |
| Q: i need to find out for an experiment the different ingredients in nailpolishes and how it influences ... A: This will be difficult since most of the manufacturers are rather mum about their ingrediants. ... | |
| antacid & pain reliever effervescent tablets | 9/24/2006 |
| Q: My 8 year old son wants to demonstrate adding water to pain relieving effervescent tablets at a ... A: The reaction that you see when the gas is expelled during the process is CO2 or Carbon Dixoide. ... | |
| mass | 9/24/2006 |
| Q: My 10 year olds science home work, help needed. If 150g of sugar is dissolved in 100cm3 of water ... A: 1cm3 = 1 gram (g) of water; Thus 100cm3 = 100g of water (100cm3=100ml) 150g(sugar) + 100g(water) ... | |
| matter | 9/22/2006 |
| Q: How do matter and carbonation relate? A: Carbonation is simply the Carbon Dioxide Gas which has been forcably disolved in soft drinks like ... | |
| science - electricity | 9/21/2006 |
| Q: please, can any one suggest me a really intersting science project related to electricity about ... A: How about doing a project where you electroplate copper onto another metalic item? It is fairly ... | |
| science | 9/20/2006 |
| Q: how weather effects food? A: Weather can effect food but it greatly depends on the type of food and the type of weather. So, ... | |
| The ocean | 9/14/2006 |
| Q: how does the ocean create rainfall i.e. fresh water?Why do WE need the ocean? Answer - Hi ... A: Excellent question. The oceans being very large bodies of water exposed to the heat of the sun, ... | |
| The ocean | 9/13/2006 |
| Q: Why do WE need the ocean? A: Why do we need the oceans? With out the oceans, our atmosphere would have much more carbon dioxide ... | |
| egg drop | 9/7/2006 |
| Q: my partner and i have to build an egg dropping device. our materials are limited to wood (with a ... A: To keep your egg from becoming egg drop soup, try to build a lattice work of wood around it so that ... | |
| phosphorus | 8/9/2006 |
| Q: How was phosphorus discovered what is something interesting about phosphorus A: Phosphorus is a rather interesting element and is esential to life. It is found in all living ... | |
| bubble stuff | 8/1/2006 |
| Q: Since you are a science fair judge, you may be able to help me. I work in a preschool setting. I ... A: It may be the amount of soap in the water. I know that the soap solution used in the big bubble ... | |
| organic chemistry | 8/1/2006 |
| Q: how do apples going brown have anything to with organic chemistry and if so what topic would it ... A: I will make an assupmtion here that the apple has been cut in half and is now exposed to the air. ... | |
| Dinosaurs | 6/22/2006 |
| Q: How do they...the expert knew that theyu lived 65million years ago?and how do they knew that when ... A: Au Yu Guo, The dinosaurs died out about 65 million years ago as a result of an ELE (Extinction ... | |
| carbon cycle;nitrogen cycle;phosphorus cycle | 6/19/2006 |
| Q: the above cycles;carbon,nitrogen,phosphorus all illustrate which of the following? law of ... A: Matthew, All of the cycles you are looking for can be found on the internet including good ... | |
| resources | 6/17/2006 |
| Q: of the following, the example that illustrates the reuse of a resource is? making swing out of old ... A: The reuse of resources is simply stated as recycled material. The tire swing uses an old tire and ... | |
| raft building made easy | 6/14/2006 |
| Q: please could you tell me in a very easy way on how to build a ten person raft for a raft race please A: A ten person raft needs to be very stable since people move around. Also depending on the nature of ... | |
| resource | 6/10/2006 |
| Q: which one of these is the example that illustrates the reuse of a resource? making a swing from an ... A: Making a tire swing, making a car engine from cans, and using glass for road pavement are all ... | |
| Golfish colour and behaviour changes due to background colour change | 6/8/2006 |
| Q: My friend and I are doing an assignment in Year: 11 Biology. We are looking at colour change and ... A: You have an interesting idea for an experiment. I'm not sure that gold fish are the best choice. I ... | |
| thermoses | 6/1/2006 |
| Q: Is bubblewrap good to use in an thermos? A: Bubble wrap is a very good insulator and behaves like a thermos in some ways. I'm not sure what you ... | |
| necessary organism environment | 5/23/2006 |
| Q: What two environments do every living organism survive in? I am a fifth grade student who needs to ... A: This one takes a some thought. All organisms need food and an environment condusive to ... | |
| Forensic Science | 5/10/2006 |
| Q: However, if I may get yr help, the question is, what kind of forensic tests can be used to confirm ... A: Among the tests that could be done: 1) a paper litmus which looks at the amount of acid/base in the ... | |
| Forensic Science | 5/9/2006 |
| Q: The question is related to a homework project concerning investigation. My case is to do with Mr ... A: First of all, a pen and ink drawing could and very easily my have been signed in pencil. I would ... | |
| anti | 5/9/2006 |
| Q: I hope I'm finding you in the best of health. I saw places like Crabtree&Evelyn sell antibacterial ... A: These products have a very high percentage of Methanol Alchol which is poisonous to any thing that ... | |
| brake pads | 5/9/2006 |
| Q: Car brakes work as a result of pressure between two rubber brake pads on each wheel. Why do you ... A: Car brakes don't use rubber brake pads but rather a highly engineered material including bronze ... | |
| Forensic Science | 5/9/2006 |
| Q: I would like to know what kind of forensic tests can be used to determine the originality of (i) an ... A: This is a little difficult to answer with out more information. First of all how old are these ... | |
| Question about science project on water cycle | 5/1/2006 |
| Q: My 1st grader is doing the following project on the water cycle, and I was wondering if I could use ... A: I understand your concern. Glass does work best because of the way it holds heat vs plastics. But ... | |
| nutritional plants | 4/23/2006 |
| Q: why do humans eat certain plants A: Plants come in three varieties. 1) edible, 2) in-edible and 3)poisonous. Over the last 100+ ... | |
| sinking and floating | 4/10/2006 |
| Q: when a boat is floating in the water what is the name of the forces that (a)keep it on the water ... A: Among others is surface tension. But a boat floats because it is "hollow". The air inside keeps it ... | |
| Microbiology | 3/29/2006 |
| Q: I have a very strong background in microbiology and my 7-year-old daughter likes to help me out with ... A: It is a bit difficult given the age of your daughter. One way to test this is for you to get ... | |
| we are doing a project about... | 3/22/2006 |
| Q: we are doing a project about plants. We would like to order a bacteria that harms plants then we ... A: This kind of experiment requires fairly rigerous controls. There are several reasons for this: 1) ... | |
| Science fair project | 3/16/2006 |
| Q: ------------------------- 1)Are the plants in the dark yellow or discolored in any way? *Yes, ... A: The potting soil may have water soluable nutriants which could be keeping them going. But it still ... | |
| Science fair project | 3/16/2006 |
| Q: 1) the two trays have the same kind of dirt mix? *Same potting soil from the same bag 2) the seeds ... A: Phyll, This is most curious. The original hypothesis should be correct. Are the plants in the ... | |
| Science fair project | 3/16/2006 |
| Q: I am advising my 10 year old on his first Science Fair project. And we both are concerned about our ... A: You do have an interesting and rather perplexing problem. Please respond to the following ... | |
| Density | 3/12/2006 |
| Q: What is density and how can you determine an object's density? A: the density of something is defined by its mass per unit volume. For instance water is 1 gram per ... | |
| Plant Question | 3/3/2006 |
| Q: I was just wondering if I could have a detailed description of two plants adapted to their ... A: Dry environment plants are often called "succulents" and include all of the Cactus family plants. ... | |
| thermometers | 2/25/2006 |
| Q: How did Fahrenheit and Celcius develop their scales on the thermometer? A: [ Home Page | Message Boards | News | Archive | Books | Buy Stuff | FAQs, etc. ] A Staff Report by ... | |
| Global Warming | 2/18/2006 |
| Q: I would like to find out in your opinion what are the facts that global warming is occuring,what is ... A: Global warming is occuring. Its causes are varied but for many, it is in part caused by the buring ... | |
| why ceramics are good insulators | 2/14/2006 |
| Q: I am doing an investigation into insulating properties on a cup of boiling water. I have explained ... A: Oh yes, there are many reasons why ceramics and even foam act as improved insulators over tin or ... | |
| Science fair ideas | 2/8/2006 |
| Q: Do you have any ideas for our 5th grade son's first science fair project? Looking for something not ... A: There are lots of great ideas for science fair projects to be found a the local public library. ... | |
| Science, Medicine and Technology | 1/29/2006 |
| Q: What is the relevance of Science, Medicine and Technology to the development of the American ... A: In many ways, it is what drove American society. This is especially true from the late 1800's ... | |
| science fair rules | 1/28/2006 |
| Q: I'm a parent that has taken over the science fair this year at my daughter's gifted school...I do ... A: Congratulations on taking on this very important and vital role in the education of your children ... | |
| science | 1/18/2006 |
| Q: Why the morning sun look red A: The same reason that the afternoon sun looks orange or red. As the sun sets, the light from the sun ... | |
| Museums | 1/11/2006 |
| Q: Do you know what is the largest museum of science in the United States? Thank you, Jamie A: I don't know for sure but I believe that it would be the Smithsonian Institution in Washington DC. ... | |
| science fair project | 1/9/2006 |
| Q: My son is a 5th grader. He wants to see which public bathroom (Wal-Mart, McDonald's, gas station) ... A: This may be quite a challange for your son. But it can be done. The two of you will need to get ... | |
| SCIENCE PROJECT INVESTIGATION | 1/9/2006 |
| Q: WhaT IS A SCIENCE PROJECT INVESTIGATION? MY SON IS IN THIRD GARDE AND HE HAS TO DO A SCIENCE PROJECT ... A: Your son is responsible for doing a science fair project. Such projects are a way to teach children ... | |
| K and 1st grade science fair: help! | 1/7/2006 |
| Q: I am a non-science mom and have 2 boys very into the upcoming science fair. So, i have 2 questions: ... A: 1) this is a very good sci fair idea for a 5 year old. Why does Ice Cream Melt. Ice Cream stays ... | |
| Science and Math Terms | 12/28/2005 |
| Q: Fifth grader has an assignment to find a math or sceince term for every letter of the alphabet. We ... A: The first answer is rather sophisticated, the second may be better suited. #1 J Chain: A ... | |
| Weight and Sinking | 12/6/2005 |
| Q: Why do some objects sink faster in water than other objects? A: It depends on the density of the object. For instance, not all objects sink, many float and that is ... | |
| Science discoveries | 12/5/2005 |
| Q: Do you know of any recent science discoveries made by students (high school or younger)? Are there ... A: It does not happen very often any more. But the most common are fossil discoveries made by young ... | |
| Avian Flu | 12/3/2005 |
| Q: How exactly is avian flu transmitted from birds to humans? A: Avian flu is transmited to humans by infected blood, fecal matter or other fluids from an infected ... | |
| Force | 11/24/2005 |
| Q: Which of the ff.statements regarding the force of gravity is incorrect? * The force of gravity is a ... A: julvin, a) this is a correct statement. Gravity is what holds or pulls objects towards the center ... | |
| Friction | 11/24/2005 |
| Q: In which of the following situations can friction be a problem? * between the tyres of a car and ... A: The tyres on a car would not move the car with out friction. On a wet road however, if there is ... | |
| Ingredients in Nail Polish | 10/31/2005 |
| Q: I've looked everywhere to try to find out what ingredients are in nail polish. For a school project ... A: It has several ingrediants. 1st: a solvant, usually acetone, the same stuff in nail polish ... | |
| Chemistry | 10/30/2005 |
| Q: Why is relative atomic mass never a whole number A: Nathan, A very good question. How much does an atom weigh? These are such small units of matter ... | |
| thickness of blood | 10/23/2005 |
| Q: How could I determine if blood is thicker (denser) than water? A: Water is a complex mixture of cells, fluids and other materials. By virtue of all of this stuff, it ... | |
| lactate in my blood | 10/23/2005 |
| Q: If I run without breathing, why would lactate accumulate in my blood? A: Lactase is a by product of the metabolism of sugars and protiens which are use during vigorous ... | |
| thickness of blood | 10/23/2005 |
| Q: How could I determine if blood is thicker (denser) than water? A: Blood is a very complex mixture of cells, liquids and other materials. It is heavier then water by ... | |
| biology | 10/15/2005 |
| Q: which was easy to read.My students have a follow-up question. They want to know if life ie bacteria ... A: In the case of evaporative moisture the answer is no. The water molecules which traspire into the ... | |
| biology | 10/12/2005 |
| Q: My grade 5 students what to ask an expert about whether or not water vapour can support life and if ... A: Yes water vapor in the form of fog and humidity can support life in a limited way. On the south ... | |
| lab safety | 9/24/2005 |
| Q: I have 2 lab safety questions that am not sure of. 1. What is the first thing to do when you ... A: 1) It depends on where the gas leak is occuring. But the safe thing to do is evacuate the lab and ... | |
| Independent variable | 9/8/2005 |
| Q: I'm having slight trouble with identifying dependent variable and independent variable. Thereof, i ... A: I will describe an experiment to you and then define these variables. I take 20 seeds of corn. I ... | |
| Arabic rescources in science | 8/31/2005 |
| Q: It will be avery a kind of you if you could provide me with Arabic rescources & sites related to ... A: Ibrahim, Thank you for asking this question. If you are located in the US, this may be very ... | |
| Magnetism | 8/15/2005 |
| Q: 1.How will a compass behave if it is right at the north pole? 2.Is a body travelling in a vehicle ... A: Richard, 1) The North Pole is a little different from the Magnetic North Pole so when standing at ... | |
| Why does soda go flat... | 8/2/2005 |
| Q: Why does soda go flat? A: Soda goes flat because the carbonation used to make it fizzy is put into the soda under pressure. ... | |
| Ionic Propulsion | 7/16/2005 |
| Q: I have been researching ionic propulsion and was wondering your take on it. I believe it is ... A: Yes, The JPL (jet propulsion laboratory) is working on various versions of IP. The JPL is part of ... | |
| Boiling point | 7/6/2005 |
| Q: If we boil ordinary water and sweated water (water coming out from our body pores during exercises ... A: Usman Good question. Distilled water boils at 100 degrees C or 212 F depending on elevation and ... | |
| air and aerodynamics | 5/24/2005 |
| Q: i am a grade 6 student, i had been researching on air and aerodynamics but i have awhy is the higher ... A: I'm not sure what you are asking. Do you mean why are mountains colder when they are closer to the ... | |
| Rose Leaf | 5/17/2005 |
| Q: Would like to know whether the leaf of the Rose is smooth or rough? A: Wan Kam, It depends on the type or veriety of rose. But most are very dark green on the top ... | |
| science | 4/28/2005 |
| Q: science is a friend or foe? A: Raj, It depends on your cultural and religious background. people from very religious (orthodox) ... | |
| science | 4/28/2005 |
| Q: Science-is it a friend or foe? A: Ramesh, I guess that it depends on your cultural background. People who come from very religious ... | |
| Human Evolution. | 3/25/2005 |
| Q: I have several questions: 1) Where and when did the Homo sapiens (archaic) evolve, and where had he ... A: You are asking the same fundamental questions that the scientific world is asking. 1) When is not ... | |
| chemistry | 3/17/2005 |
| Q: My project is on " which dishwashing detergent is the best degreaser. " Thus telling you this, can ... A: This is a fairly common type of experiment. Some do it with soap, others with laundry detergents ... | |
| Invertebrates | 3/15/2005 |
| Q: I need to find the scientific names of many different invertebrates for my ... A: There are several places on the web which could give you this kind if information. Here are some ... | |
| plants cannot survive | 3/10/2005 |
| Q: Could you suggests two geographical locations on Earth where many plants have difficulty surviving ... A: Yes there are many places on earth where plants have a very hard time surviving. 1) Antarctica ( ... | |
| Behavior of Goldfish | 3/7/2005 |
| Q: I am doing a science project about the behavior of goldfish when they see their reflection in a ... A: As far as I am aware goldfish show no reaction to a reflection. However, "fighting fish" do react ... | |
| humans vocal cords | 2/26/2005 |
| Q: what are vocal cords what do they do A: Vocal cords work the same way the strings on a violin work. When air goes over them, they vibrate. ... | |
| mountains | 2/20/2005 |
| Q: how are mountains formed? A: Mountians are formed in two ways. 1) Volcanism (Volcanos) where magma or molten rock pushes up from ... | |
| Static electricity | 2/19/2005 |
| Q: Mr. Hellendag, Hi...I am a student at Christopher Newport University. In my natural science ... A: Sarah So you live in Newport News VA! I used to live there in the 1990's. I worked for Siemens ... | |
| Teeth Science Project | 2/11/2005 |
| Q: I am doing a project on tooth enamel and acids in the food we eat. so, first of all i don't know how ... A: You are making things a bit hard on yourself. Here are some suggestions Get an evelope scale which ... | |
| Analysis of Data for Sci. Proj | 1/26/2005 |
| Q: " My daughter 8th grade is doing sci fair proj: Wine bottle filled with solutions of vinegar and ... A: Sounds like a great idea for a science fair project.. It will be nearly impossible to calculate ... | |
| science | 1/18/2005 |
| Q: what to do for a science fair project help A: derek, This is a big question. What are your areas of interest? Are you interested in bugs, ... | |
| Experiment Background Info | 1/16/2005 |
| Q: I need to find the ingredients for Coke and Tropicana OJ. Thanks a bunch! ASAP Please! A: the ingredients are listed on the packaging as required by law. So if you have a can or container ... | |
| ultrasound and whales | 1/14/2005 |
| Q: I heard that fishermen can use ultrasound as a bait to attract whales, since whales use ultrasound ... A: Katrina, I would recommend that you look in Google.com and dogpile.com ( two search engines of ... | |
| Why does tonic water not freeze solidly? I gets to a slushy form. | 1/9/2005 |
| Q: A: Besides water, there is also carbonation (CO2), fruit extracts, sugars and Quinine. The water in ... | |
| foot size between girls and boys | 1/9/2005 |
| Q: My child is doing a science fair project involving the measurment of children feet. Do you know of ... A: I am not aware of any science projects of a similar nature. That does not mean however, that this ... | |
| blood | 1/3/2005 |
| Q: sir, i have a big confusion. what is the difference between antigens and antibodies?? what do ... A: Sharmi Nair, An antigen is any substance that causes your immune system to produce antibodies ... | |
| Science | 12/9/2004 |
| Q: OK in our science class we have to make a trebuchet and catapult an egg off of it as far as we can ... A: Alyssa, Cool idea. You should layer the following around the egg: A sheet of closed cell ... | |
| What was the famous believe... | 12/2/2004 |
| Q: What was the famous believe of pople regarding earth and who was the scientist which proved it ... A: Umair, For a very long time some people believed two things. First that the Earth was flat like a ... | |
| Volcanos | 12/1/2004 |
| Q: How long would it take for volcanos to stop erupting and how does the lava come out? A: Aravind, Some erupt only once and others are in a constant state of eruption. It is highly ... | |
| Science | 11/29/2004 |
| Q: How do: Magitude, Mercalli Scale, Richter Scale, Moment Magnitude Scale, and Surface wave look like? ... A: 1) I am not sure what you mean by Magitude, did you mean Magnitude? and if so in what way? As for ... | |
| Dome Mountains | 11/29/2004 |
| Q: How does dome mountains formed? A: Dome mountians come in two forms: 1) a volcanic up thrust which pushes up a dome shaped mountian. ... | |
| carbonation in soda | 11/20/2004 |
| Q: How can I determine how much carbonation is in soda? I think that I need to determine how much ... A: They are not really related to each other. Carbonation is CO2 added to the drink in one of the ... | |
| chemistry | 11/19/2004 |
| Q: which of the following is one way to prevent the corrosion of iron? a. protect the iron from ... A: Iron corrodes to Ferrus Oxide or rust. Just exposure to moisture in the air will cause iron to ... | |
| Ralph, I need to know the... | 11/5/2004 |
| Q: Ralph, I need to know the following: If a flashlight uses batteries that add up to 3.0volts and ... A: Mary, Here are some key formulas which will help you to figure this out: current in amps = ... | |
| A quanitiy of steam 200g at... | 11/4/2004 |
| Q: A quanitiy of steam 200g at 110degreesC is condensed, and the resulting water is frozen in to ice at ... A: I am sorry but this is outside of my area of expertise but it would seem that you are removing 110 ... | |
| Waves | 10/31/2004 |
| Q: Why is it that some of the largest waves in the world occur in the Drake Channel between the tip of ... A: Ron, Consider the following: 1) high circumpolar winds 2) high current flows 3) realtively ... | |
| Evaporation of water from an orange | 10/28/2004 |
| Q: We are a first grade class that have some questions for you regarding our project. 1) Is there ... A: 1) The juice of an orange is mostly water. The total weight of an orange is more then 80% water. ... | |
| chromatography | 10/24/2004 |
| Q: "Hi, :) my question is: What is chromatography and what are use of it... can u explain this to me ... A: Viki must be in your class. Chromatography is a way to discover what something is made of. Every ... | |
| chromatography | 10/24/2004 |
| Q: :) my question is: What is chromatography and what are use of it... can u explain this to me ... A: Chromatography is a way to find out what something is made of. Every thing around us is made of ... | |
| Soda | 10/23/2004 |
| Q: It was very helpful. It gave me lots of ideas for my project on soda. one of your suggestions was ... A: I'm not sure that you would have enough electrical current to run a train. But light a bulb yes. ... | |
| Science fair theme | 10/22/2004 |
| Q: I am a 7th grade middle school student interested in participating in a science fair. I have ... A: there are a number of soda experiments that you can do. For instance, did you know that soda can ... | |
| science project | 10/18/2004 |
| Q: Ib program is a very good program , but we get so much homework in the end of term. Anyway, agree ... A: Some work has been done of a similar nature with apes and with parrots. Both show a level of ... | |
| I am trying to come up with... | 10/16/2004 |
| Q: I am trying to come up with an idea for a science fair. I am currently a grade 10 pre-IB student.I ... A: Both of my older kids went through the IB program. It is a great education. Congratulations. My ... | |
| Which will thaw faster hot or cold water? | 10/15/2004 |
| Q: I'am a fifth grader. Last yeare I did a science project on which would freeze faster hot or cold ... A: Taylor, I think I understand your experiment. But I do need clarification on one thing. When you ... | |
| In which liquid will food coloring fall to the bottom the fastest? | 10/15/2004 |
| Q: I am a 5 grade student doing research for a science project. My project is "In which liquid will ... A: Many of the food coloring companies have web sites and can provide this kind of information. What ... | |
| Science | 10/12/2004 |
| Q: Please write in exponent. What is the Mass of the earth, sun, and moon? What is the distance between ... A: Mass of the Earth = 5.9736 x 10 (24th power) Kg Mass of the Sun = 1.9891 x 10 (30th power) Kg Mass ... | |
| welding or glue hair pins together | 10/11/2004 |
| Q: I'm interested in using hair pins in an project. I was wondering about their chemical make-up. ... A: Well there are several different kinds of hair pins. Most are made of steel or spring steel and ... | |
| Science | 10/10/2004 |
| Q: What is the Mass of the earth, sun, and moon? What is the distance between earth to moon and earth ... A: Mass of the Earth = 5.9736 x 10 (24 power) Kg Mass of the Sun = 1.9891 x 10 (30 power) Kg Mass of ... | |
| The science fair project | 10/5/2004 |
| Q: What is qualitative data and quantitative data? A: Qualitative or discrete data is information that can be catagroized or classified in which the data ... | |
| a general question, didn't know which expert to ask... | 10/5/2004 |
| Q: ...if you can't answer the question, can you tell me which field of expert I should ask: The ... A: Yes it does. It is called "Differential Density Distortion". You may find more if you look up ... | |
| nutrients | 10/3/2004 |
| Q: .well i have a question about dietary fiber.i want to make sure that i dont misunderstand anything ... A: First of all dietary fiber is a subject of on going study. We still don't understand all of the ... | |
| carbs | 10/3/2004 |
| Q: ..i took a test this past few days and when i got my results back i noticed that 2 of my answers ... A: H Rachael, In the first question. item 4 has cellulose which is a component of fiber rather then a ... | |
Science for Kids
Answers by Expert:
Ralph Salier-Hellendag
Top Expert on this page
Expertise
Science Fair Judge for many years and experience with robotics, biology, chemistry, industrial processes, metalurgy and metal forming.
Experience
Science Fair Judge for many years and have helped several students get to state level competition. Most recently 2 of my students received state level awards and one went on to the nationals in Washington DC.
Education/Credentials
BA Archaeology - Anthropology
MA Business Anthropology
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