| Subject | Date Asked |
|
| 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 ...
|
