I have to also be able to form a hypothesis off of them!!!! Help!!!!!!!
2006-11-26 09:41:27 · 5 answers · asked by purple19934 2 in Science & Mathematics ➔ Other - Science
How do differing amounts of salt effect the boiling point of a certain quantity of water?
How long will a candle burn in various sized sealed containers?
What is the optimum angle to launch a nerf ball to gain the maximum horizontal distance?
2006-11-26 09:45:00 · answer #1 · answered by Anonymous · 0⤊ 0⤋
You could do a solar powered microwave. You should be able to find the steps to it online somewhere, its pretty easy to make. You can even make hot dogs for your class (extra credit). You could hypothesize that it takes less energy to cook it solarly than it would to cook it in a microwave.
2006-11-26 09:44:38 · answer #2 · answered by Kissy 2 · 0⤊ 0⤋
dont really know what they teach in 8th grade thesedays... maybe you can make an electromagnet... and show how more power will increase its power... etc etc...
2006-11-26 09:43:41 · answer #3 · answered by Cerebraltissue 2 · 0⤊ 0⤋
vibration of the vocals
2006-11-26 14:10:11 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Try these sites,
http://school.discovery.com/sciencefaircentral/
http://www.scifair.org/
http://www.usc.edu/CSSF/
http://www.energyquest.ca.gov/projects/
http://www.libraryspot.com/features/scienceprojects.htm
http://scienceclub.org//kidproj1.html
2006-11-28 00:09:37 · answer #5 · answered by donp 6 · 0⤊ 0⤋