I need a really cool science project for a 7th grader?

Question

I need one that is easy to do but will get 1st place

Answer 1

Is it possible to 'hear' light?


Best Answer - Chosen by Asker


Yes!

You need one small solar cell, one small battery operated audio amplifier, one input jack for the amplifier and two 6" lengths of low gauge wire (one black one red). Solder Iron and solder.

Solder the the wire to the the + - poles of the solar cell and the other ends of the to the input jack. Plug the input jack into the audio amplifier. Now take the contraption outside and wait for the sunrise. Or if can't wait for the sunrise, turn on a light and see what happens.


It works! Believe it or not Bell invented the process before he invented the Telephone!

Love Bruce Toronto Canada

P.S. Be extremely careful with the soldering Iron, cause man it gets HOT! HOT! HOT! See if you can get an adult to do the soldering for you!

Answer 2

Can't guarantee first place but if you can find two mirrors (hand mirrors?) and fix them facing each other a short distance apart, you can place a small light source (small flashlight?) between them and move it about to see how the multiple reflections play out. One mirror should be movable so that it can be tilted slightly to 'dump' the images? Likely the hard projects will get first place unless the effect is cleverly described including diagrams of how light reflects and weakens each round trip. If you can scrape the 'silver' off a peak hole at the center of one mirror the view may be even more interesting. Also try different colored lenses and count the reduced reflections? Try other objects held between the mirrors that are externally illuminated (with a flashlight?). Good luck.

Answer 3

My seventh grader says to make a volcano. They aren't that time consuming to do, the chemicals needed are mostly household and it looks really cool when it starts to push the "lava" out.

She says kids like to make them because they are messy and somewhat simple. Plus teachers get a laugh from them because of the Brady Bunch episode when they made one and it exploded all over Marcia.

Answer 4

perhaps you could write all of the words you could find inside of deoxyribonucleic acid, DNA, or all of the words you could make from chemical symbols.