| Subject | Date Asked | Expert |
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| vanilla in hydroponic system | 5/30/2004 | Amy |
Q: I live in india and found in a paper that its possible to grow plants in water.?? I am currently ...
A: I'm not a botany expert but there is someone at All Experts who may be able to help you. Try ...
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| Electric shocks | 5/29/2004 | Dan Fink |
Q: I'm only a kid at heart,but your profile seemed to best fit my question or problem. I do hope you ...
A: Perhaps it's your 'electric' personality -- or maybe you could find an orchestra and get into ...
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| geography | 5/28/2004 | Dan Fink |
Q: good morning sir, i have doubt in fundamental physics. my doubt is how scientists found the ...
A: Weight depends on the acceleration of gravity. So it's a better question to ask "how did scientists ...
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| earths magnetic field | 5/26/2004 | Dan Fink |
Q: What is the earths magnetic field
A: (parts of this answer are copied from one of my answers from a couple weeks ago) The source of the ...
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| Science Experiment ideas | 5/24/2004 | Dan Fink |
Q: I'm an eigth grader and I have to do a science inquiry lab. I need a lab idea that I can do in a ...
A: Well, it's a hard question to answer, because I don't know what your interests are. Biology, ...
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| science | 5/22/2004 | Dan |
Q: how does sound travel through AIR
A: Sound uses a medium and air is a medium. Sound cannot travel in outer space. Sound sounds different ...
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| physiscs | 5/22/2004 | Dan Fink |
Q: how does sound move through air? this is for my research. Please Answer A.S.A.P
A: Sound moves through air as a series of pressure waves. For example, watch a loudspeaker while it is ...
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| biosphere | 5/12/2004 | Dan Fink |
Q: can you list three things that make up the biosphere
A: You bet. Did you know that the term "biosphere" was invented in 1929 by a Russian scientist? He ...
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| Matter and animal | 5/10/2004 | Amy |
Q: 1.Are wind and electricity belong to matter? Why 2. What is the ant life span? 3. What is the ant ...
A: this is a very unusual set of questions! I'm going to need more information to help you out on some ...
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| Freezing water | 5/9/2004 | Dan |
Q: Does cold water freeze faster than warm water?
A: I have heard both sides. If I recall someone told me it would freeze faster with warm water and ...
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| Science Fair | 5/6/2004 | Dan Fink |
Q: I am trying drop an egg from a second story building onto concrete without breaking the egg. I have ...
A: The egg drop is a classic and very fun experiment (I think I did it 3 times while I was in ...
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| physics (my mom thinks) | 5/5/2004 | Dan Fink |
Q: I'm 4 and last week I asked my mom, why does a hill look small when you are far away from it and ...
A: That's a great question, and the answer is really weird: It's all in your brain. This is probably a ...
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| Earth's magnetic field | 4/25/2004 | Dan Fink |
Q: What is the main function of the Earth's magnetic field? Is it like a shield of sorts? Thanks. :)
A: You are right, the Earth's magnetic field helps to shield us from charged particles from space -- ...
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| Weather | 4/15/2004 | Dan |
Q: This question is to help my daughter study for her science test. Here I go... Why does weather ...
A: This is a great question but sad to say it, yet it is very complex. This is why I am sending you a ...
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| plants | 4/15/2004 | Dan |
Q: what is the importance of photosynthesis and resperation of a plant?and how would it affect the ...
A: For most plants, photosynthesis makes the food for the plant. Please read this website. ...
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| Reproductive system | 4/5/2004 | Amy |
Q: Do you know of a good website about the female and male reproductive system and the develpmeant of a ...
A: for good basic science information on the web you can't get better than www.howstuffworks.com ...
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| hello...how can you prevent... | 4/4/2004 | Dan |
Q: ..how can you prevent air and water pollution? thanks
A: Great question. Lots of ways. Personally I do not even know where to start. I am a Sierra Club ...
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| hello...how can you prevent... | 4/4/2004 | Dan Fink |
Q: ..how can you prevent air and water pollution? thanks
A: I'd say there's two important things to remember for preventing pollution -- the things that you ...
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| Chemical safety | 3/29/2004 | Amy |
Q: I'm doing a report at school on careers, I am interested in being a chemist. How do you protect ...
A: There's heaps of ways to protect yourself around chemicals. The basics are a labcoat (to protect ...
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| Balance | 3/27/2004 | Dan Fink |
Q: If you could design a tail to be worn by a human so they could run with a lower center of balance by ...
A: Wow, what an interesting question! To really get a detailed answer I think you'd have to do some ...
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| Cancer | 3/27/2004 | Amy |
Q: we are teachers in jordan (world links groub ) we send this message ,to know some information about ...
A: Short answer is sometimes. Some people are more likely to develop cancer because of their genetic ...
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| teaching science for kids | 3/27/2004 | Dan Fink |
Q: how can we teach chemical formulas for kids their age are 10 years?
A: I think it would depend on how detailed you want to get. Do you want to teach about atoms, molecules ...
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| Electromagnets | 3/25/2004 | Amy |
Q: I am 13 years old and I have a Science Project on Electromagnets. I have to design an experiment ...
A: Great question. Physics isn't normally my strong point but I've found a really good experiment that ...
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| My granddaughter is preparing her Science fair project. | 3/23/2004 | Dan |
Q: We found instructions to build a project using fruit as a power source.We followed the information ...
A: I remember I have a book that takes about this project. The thing is it recommended lemon or lime. I ...
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| I do not like physis ,but I want to be a pediatric ian | 3/22/2004 | Amy |
Q: I love taking good care of children even love staying near them . But I do not know physics and it ...
A: I need more details of your educational background and know where you live to be able to help you ...
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| plants | 3/18/2004 | Amy |
Q: If i placed 3 pots, which are watered every other day with 240 m of water, under different colored ...
A: is this a homework question? If so, I don't normally answer them. In this case, however, I can give ...
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| Harris Hawk | 3/17/2004 | Dan Fink |
Q: 1.What senses do Harris Hawks have? 2.How do Harris Hawks protect themselves?
A: Google is your friend ;-) Some things are hard to find there, but in this case a search on "harris ...
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| FRICTION | 3/17/2004 | Dan Fink |
Q: HOW DOES FRICTION CHANGE THE ENERGY IN A MACHINE?
A: Friction takes some kinetic energy out of any mechanical system and turns it into heat. Usually this ...
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| Experiment | 3/1/2004 | Dan |
Q: While doing an experiment why is it important to do many trials instead of just doing it once? ...
A: I don't do many experiments anymore, yet if you do it once and it does one thing and they do it ...
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| help...Science Project - Marble Clock | 3/1/2004 | Dan Fink |
Q: my son is in the 5th grade...science project due on Wednesday-Friday....not real sure what the ...
A: I still need more details to be able to help -- I don't quite understand the project. The only thing ...
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| Why some crayons work better than others? | 2/28/2004 | Dan Fink |
Q: I am doing a science fair project about why some crayon brands work better than others and what ...
A: Normally, your best bet is to contact the manufacturer directly by phone or email. Crayola is great ...
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| science project | 2/25/2004 | Amy |
Q: hello this is a science project for my son marc i seen on tv about a 20oz plastic bottle make a hole ...
A: I've normally seen plastic bottles and baking soda used in rockets that shoot up into the air! I ...
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| Making Slime from household products | 2/25/2004 | Amy |
Q: I would like to know if you can make slime from regular laundry detergent other than Borax. My ...
A: slime is one of my specialties, I did a slime show for the Australian National Science and ...
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| Science Fair | 2/23/2004 | Dan Fink |
Q: For my science fair project I am creating a tornado simulator. according to the scientific method, i ...
A: I answered this same question twice recently, so here's a copy of it. DAN Subject: Science FairWhat ...
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| help...Science Project - Marble Clock | 2/23/2004 | Dan Fink |
Q: my son is in the 5th grade...science project due on Wednesday-Friday....not real sure what the ...
A: sorry for the delay. I couldn't find anything about this as a common science experiment on the web. ...
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| sound | 2/16/2004 | Jack D Papin |
Q: What would be a good way (experiments or other) to get children interested in learning about sound ...
A: :) I would use tuning forks!:) They are fun! There is a 'singing rod' that can be found at ...
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| biology | 2/16/2004 | Amy |
Q: In the winter how do sea animals keep warm?
A: different types of sea animals keep warm in different ways. I wasn't quite sure what grade you are ...
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| Money | 2/15/2004 | Dan |
Q: How come when you wash a dollar bill in the washing machine nothing happens to it? I thought it was ...
A: Good question. Part of the answer is it's made of special cloth, I think cloth paper. And it uses ...
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| The science behind stain removal | 2/15/2004 | Dan Fink |
Q: I am doing a science fair project on whether generic or name brand laundry detergent works best on ...
A: Soaps and detergents are surfactants, which lower the surface tension of water. This allows them to ...
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| good idea for a Science Project | 2/13/2004 | Dan Fink |
Q: I found out the fair is not on Monday, but on Wednesday, that gives me a little more time to fix ...
A: The speaker magnets will be ceramic and not powerful enough for levitation. Hard disk drives do have ...
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