| Subject | Date Asked | Expert |
|
| Hot and cold water and cotton balls | 2/23/2005 | Dan Fink |
Q: I am in 6th grade. I recently did an experiment with hot and cold water and cotton balls. The ...
A: You are thinking along exactly the right lines here, you did indeed figure it out! Your experimental ...
|
| science | 2/21/2005 | Amy |
Q: i need to help my daughter to make a one minute timer please help
A: I think theres something wrong with this website at the moment bacause I've only now recieved your ...
|
| mountains | 2/20/2005 | Ralph Salier-Hellendag |
Q: how are mountains formed?
A: Mountians are formed in two ways. 1) Volcanism (Volcanos) where magma or molten rock pushes up from ...
|
| Static electricity | 2/19/2005 | Ralph Salier-Hellendag |
Q: Mr. Hellendag, Hi...I am a student at Christopher Newport University. In my natural science ...
A: Sarah So you live in Newport News VA! I used to live there in the 1990's. I worked for Siemens ...
|
| Static Electricity | 2/19/2005 | Dan Fink |
Q: Mr. Fink, Hi...I am a student at Christopher Newport University. In my natural science class we ...
A: Your information is pretty good, but there are some static electricity concepts that have very ...
|
| The Solar System | 2/17/2005 | Dan Fink |
Q: I am Jill Goodgion, and Lindsey is my 4th grade student. As part of an independent study project, ...
A: No problem. And good questions! 1) I'm interested because the Earth is only one part of the solar ...
|
| Dinosaurs | 2/15/2005 | Amy |
Q: Oscar is my student, but he has to use my email since students don't have access to one. As part of ...
A: I'm not much of a dinosaur person, but a friend of mine, David, is. He helped out with your ...
|
| Teeth Science Fair Project | 2/11/2005 | Amy |
Q: I am in 3rd grade.My mom helped me type this so that you can understand what questions I need ...
A: I only got your message today because I only have the internet at work. You've got lots of ...
|
| Teeth Science Project | 2/11/2005 | Ralph Salier-Hellendag |
Q: I am doing a project on tooth enamel and acids in the food we eat. so, first of all i don't know how ...
A: You are making things a bit hard on yourself. Here are some suggestions Get an evelope scale which ...
|
| Earth's Interior | 2/10/2005 | Dan |
Q: How do scientists determine the composition of the Earth's interior?
A: Great question. You may want to ask in the geology area on this site, yet in simple they use waves. ...
|
| Wind Power | 2/8/2005 | Dan Fink |
Q: I hit the button too soon. I realize that when you are not measuring the current then there is no ...
A: You got it exactly right. Measuring voltage in an open circuit is useful, since it tells you at what ...
|
| sea water | 2/7/2005 | Amy |
Q: Why is the sea water turquise in some areas and dark in others. Thanks, Ken PS. 1st year of College
A: the colour of sea water is based on a number of factors including the amount of phytoplankton in the ...
|
| Do you know wht kingdom does the amoeba belong to? (just curious to know) | 2/6/2005 | Amy |
Q: do you know what kingdom the amoeba belongs to?(just curious to know) we still didn't learn this.
A: the amoeba is in the kingdom Protista. Here's some more info. Thanks, Amy The kingdom Protista ...
|
| Analysis of Data for Sci. Proj | 1/26/2005 | Ralph Salier-Hellendag |
Q: " My daughter 8th grade is doing sci fair proj: Wine bottle filled with solutions of vinegar and ...
A: Sounds like a great idea for a science fair project.. It will be nearly impossible to calculate ...
|
| My daughter 8th grade is doing... | 1/25/2005 | Amy |
Q: My daughter 8th grade is doing sci fair proj: Wine bottle filled with solutions of vinegar and ...
A: I'd like to say first and foremost that my background is chemistry so I can only tell you part of ...
|
| pulleys and gears | 1/25/2005 | Dan Fink |
Q: My daughter has to do a science fair project in the pulleys and gears category. She wants to build a ...
A: I've seen some pretty interesting wooden and paper clocks....there is actually quite a community of ...
|
| Wind Power | 1/25/2005 | Dan Fink |
Q: As you know, I am helping my daughter in grade 5 with a wind power project. We are using a variable ...
A: You are correct on the turbulence issue; it makes using fans in wind power experiments ...
|
| science | 1/18/2005 | Ralph Salier-Hellendag |
Q: what to do for a science fair project help
A: derek, This is a big question. What are your areas of interest? Are you interested in bugs, ...
|
| Motor generator | 1/18/2005 | Dan Fink |
Q: I am helping my daughter to do a wind power project. So far we have been experimenting with a Radio ...
A: Great to see kids and parents work on wind power projects! I work for http://www.otherpower.com/ and ...
|
| anemometer | 1/18/2005 | Amy |
Q: I have seen various sites on the internet that talk about making a homemade anemometer using a ping ...
A: I have to say that this question is out of my expertise. I've had a hunt around for other people who ...
|
| Optical illusions | 1/16/2005 | Amy |
Q: I'm in grade 10. Anyways, how do those 3D optical illusion work. The ones that just look like ...
A: this is how those optical illusions work. BTW their real name is random dot stereograms. They rely ...
|
| Sci. Fair Background info | 1/16/2005 | Amy |
Q: I'm an 8th grader in advanced highschool credit physical science. I need to find the ingredients for ...
A: Here's the coke recipe Citrate Caffein, 1 oz. Ext. Vanilla, 1 oz. Flavoring, 2.5 oz. F.E. Coco, ...
|
| Sci Fair Background Info | 1/16/2005 | Dan Fink |
Q: I need to find the ingredients for Coke and Tropicana OJ. Thanks a bunch! ASAP Please!
A: Coke is well-known for having their "secret ingredients" recipe locked in a high-security ...
|
| Experiment Background Info | 1/16/2005 | Ralph Salier-Hellendag |
Q: I need to find the ingredients for Coke and Tropicana OJ. Thanks a bunch! ASAP Please!
A: the ingredients are listed on the packaging as required by law. So if you have a can or container ...
|
| hey!!! | 1/15/2005 | Dan Fink |
Q: hey i've been doing research on Thermoaucustic Refrigeration, which is the process of using sound ...
A: An extremely interesting subject! Here at my office we've always had fun working on home experiments ...
|
| ultrasound and whales | 1/14/2005 | Dan Fink |
Q: I heard that fishermen can use ultrasound as a bait to attract whales, since whales use ultrasound ...
A: I was unable to find any references online to commercial whalers or scientists using ultrasound to ...
|
| ultrasound and whales | 1/14/2005 | Ralph Salier-Hellendag |
Q: I heard that fishermen can use ultrasound as a bait to attract whales, since whales use ultrasound ...
A: Katrina, I would recommend that you look in Google.com and dogpile.com ( two search engines of ...
|
| Sky | 1/14/2005 | Dan |
Q: Why is the sky blue?
A: Great question Sarah. Just like my first science question that I ever asked anyone else. I think it ...
|
| making a heating element | 1/14/2005 | Dan Fink |
Q: I am in 7th grade and for my science fair project I want to take an aluminum (cheap thin kind) ...
A: Sounds like a fun project. You'll have to do some experimenting to get the heat level right, but ...
|
| Why does tonic water not freeze solidly? I gets to a slushy form. | 1/9/2005 | Ralph Salier-Hellendag |
Q:
A: Besides water, there is also carbonation (CO2), fruit extracts, sugars and Quinine. The water in ...
|
| foot size between girls and boys | 1/9/2005 | Ralph Salier-Hellendag |
Q: My child is doing a science fair project involving the measurment of children feet. Do you know of ...
A: I am not aware of any science projects of a similar nature. That does not mean however, that this ...
|
| blood | 1/3/2005 | Ralph Salier-Hellendag |
Q: sir, i have a big confusion. what is the difference between antigens and antibodies?? what do ...
A: Sharmi Nair, An antigen is any substance that causes your immune system to produce antibodies ...
|
| periodic table | 12/14/2004 | Amy |
Q: Which metal is most likely obtained by the electrolysis of its fused salts? (1)Au (2)Ag (3)Li (4)Zn ...
A: This should clarify things a little Thanks, Amy The ores of most metals contain the metal in an ...
|
| periodic table | 12/14/2004 | Amy |
Q: Which group 18 element is most likely to form a compound with the element flourine? 1. He 2. Ne 3. ...
A: sorry to not catch your question in time. I've had to leave my office a lot in the last week. I hope ...
|
| Science | 12/9/2004 | Ralph Salier-Hellendag |
Q: OK in our science class we have to make a trebuchet and catapult an egg off of it as far as we can ...
A: Alyssa, Cool idea. You should layer the following around the egg: A sheet of closed cell ...
|
| What was the famous believe... | 12/2/2004 | Ralph Salier-Hellendag |
Q: What was the famous believe of pople regarding earth and who was the scientist which proved it ...
A: Umair, For a very long time some people believed two things. First that the Earth was flat like a ...
|
| Volcanos | 12/1/2004 | Ralph Salier-Hellendag |
Q: How long would it take for volcanos to stop erupting and how does the lava come out?
A: Aravind, Some erupt only once and others are in a constant state of eruption. It is highly ...
|
| Science | 11/29/2004 | Ralph Salier-Hellendag |
Q: How do: Magitude, Mercalli Scale, Richter Scale, Moment Magnitude Scale, and Surface wave look like? ...
A: 1) I am not sure what you mean by Magitude, did you mean Magnitude? and if so in what way? As for ...
|
| Dome Mountains | 11/29/2004 | Ralph Salier-Hellendag |
Q: How does dome mountains formed?
A: Dome mountians come in two forms: 1) a volcanic up thrust which pushes up a dome shaped mountian. ...
|
| Salt's affect on water | 11/24/2004 | Amy |
Q: Salt added to ice, melts the ice. I think this is because it lowers the temperature water needs to ...
A: As soon as any of the salt dissolves in the water, the boiling point of the water will begin to rise ...
|
