| Subject | Date Asked |
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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: ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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) ...
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| 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 ...
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| 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 ...
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| 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" ...
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| 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, ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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, ...
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| 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 ...
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| 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? ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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, ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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, ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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. ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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, ...
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| 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 ...
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| 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 ...
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| 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, ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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" ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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, ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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, ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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, ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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. ...
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| 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) ...
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| 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 ...
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| 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 ...
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| 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, ...
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| 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, ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| anti | 5/9/2006 |
| &nbs |
