| Subject | Date Asked | Expert |
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| science | 9/27/2006 | Ralph Salier-Hellendag |
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 | Ralph Salier-Hellendag |
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 | Ralph Salier-Hellendag |
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 | Ralph Salier-Hellendag |
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 | Ralph Salier-Hellendag |
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 | Ralph Salier-Hellendag |
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 | Ralph Salier-Hellendag |
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 | Ralph Salier-Hellendag |
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 | Ralph Salier-Hellendag |
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 | Dan Fink |
Q: Why do WE need the ocean?
A: The oceans are the water storage for one end of the 'water cycle.' If the water cycle stopped, there ...
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| The ocean | 9/13/2006 | Ralph Salier-Hellendag |
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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| Earth's magnetic field | 9/11/2006 | Dan Fink |
Q: I need help answering how the earths magnetic field affects magma?
A: It's more the other way around --- the theory is that the movement of magma is actually what ...
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| egg drop | 9/7/2006 | Dan Fink |
Q: my partner and i have to build an egg dropping device. our materials are limited to wood (with a ...
A: Ouch! That's rough--the best materials to use for the egg drop are layers of foam in differing ...
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| egg drop | 9/7/2006 | Ralph Salier-Hellendag |
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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| chemistry | 9/2/2006 | Dan Fink |
Q: how could i extract a vegetable oil by distilation?
A: because of the intense interest in biodiesel fuel. Vegetable oils can be extracted from plant seeds ...
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| physical science | 8/23/2006 | Dan Fink |
Q: does technology always follow science
A: I think it's safe to say that in general, technology does follow science. However, it takes a big ...
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| Light Switch | 8/22/2006 | Dan Fink |
Q: Who invented the light switch?
A: This ends up being a difficult question to answer! Switches were invented in the earliest days of ...
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| Magnet experiment | 8/18/2006 | Dan Fink |
Q: Magnets were put on a pencil. They did not touch, and moved like a spring. What causes the magnets ...
A: In explaining magnets, one eventually gets into a PhD-level field of science called "Quantum ...
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| phosphorus | 8/9/2006 | Ralph Salier-Hellendag |
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 | Ralph Salier-Hellendag |
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 | Ralph Salier-Hellendag |
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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| maple trees/syrup and leaves changing colors | 7/24/2006 | Dan Fink |
Q: Which kind(s) of maple trees give syrup? How old does the tree need to be? How do you do it? Why ...
A: Since I live about 1500 miles from the nearest sugar maple tree, I'll have to refer you to some ...
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| DINOSAURS | 7/13/2006 | Dan |
Q: Hey. My name is Ida. I have some questions about dinosaurs. 1) How can experts and proffesors ...
A: Your question is a drop complex for here. You should ask in our biology area, however experts can ...
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| magnetism | 6/28/2006 | Dan Fink |
Q: I have a patent on a working prototype that I have use myself and it works great. It is designed ...
A: The phenomenon you are seeing is called magnetic saturation -- the magnetic field is indeed coming ...
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| Solar Power stuff | 6/27/2006 | Dan Fink |
Q: Do you know of any activities or hands on demos for kids to do to learn about solar power (besides ...
A: There are all kinds of insteresting and fun experiments you can do with small photovoltaic (PV) ...
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| Science Grade 9 Formulas | 6/27/2006 | Dan Fink |
Q: So, It's nearing the end of the year but I still can't keep my finger on the formulas of ...
A: I have to use Ohm's law everyday at work, and I'm terrible at remembering formulas. So what I do for ...
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| Dinosaurs | 6/22/2006 | Ralph Salier-Hellendag |
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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| Egg Drop | 6/21/2006 | Dan Fink |
Q: My Teacher has just assigned us an egg drop project for science and me and my partner don't know ...
A: I've pasted in a copy of a previous question about the egg drop, below. In your case -- the ...
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| carbon cycle;nitrogen cycle;phosphorus cycle | 6/19/2006 | Ralph Salier-Hellendag |
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 | Ralph Salier-Hellendag |
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 | Ralph Salier-Hellendag |
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 | Ralph Salier-Hellendag |
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 | Ralph Salier-Hellendag |
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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| Flying machine inventors bag | 6/7/2006 | Dan Fink |
Q: My neice has a project from school that we are trying to figure out. The project is an inventors bag ...
A: Wow, talk about a project for creative thinking! I think your 2 options for making it fly are ...
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| evaporation | 6/6/2006 | Dan Fink |
Q: why do things dry quickly in the sun?
A: Heat (in this case from the sun) speeds up evaporation of water--it gives the water molecules more ...
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| Egg Drop | 6/4/2006 | Dan Fink |
Q: I'm a 6th grader, it's the last week of school and our teacher assined us a project. We have to ...
A: You are stylin' because your teacher did not restrict what materials you can use! I've included a ...
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| ambleeopa | 6/1/2006 | Dan Fink |
Q: this ambleeopa is about lazy eye can you tell me more about this?
A: It's not fully known what causes it -- worse vision in one eye, problems with the muscles that make ...
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| thermoses | 6/1/2006 | Ralph Salier-Hellendag |
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 | Ralph Salier-Hellendag |
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 | Ralph Salier-Hellendag |
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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