What is a good science fair topic for my 7th grader?

Answer 1

Goto a college bookstore and check out the physics books. What you are looking for are pictures of experiments and demonstrations, and there are hundreds of them. There's also always a very good explaination of what's going on. Just replicate what's going on in one of them more interesting experiments, or one of the ones that makes you go, "wow, I never knew that!" It's easy, cheap, and your child will learn something.

Answer 2

This is a really cool easy to do demonstration. Get a copper pipe, a magnet, which fits comfortably in the pipe, and a a marble. The marble will fall at the expected rate but the magnet will slowly float down the pipe even though copper is not normaly somthin we would call magnetic.
its a pretty striking demonstration but the explantion is pretty complex. The simple version is that the magnet induces a temporary magnetic atractio inthe copper as it slides past the molecules. This atraction slows down the magnet but because it is only temporary the magnet never stops and sticks to the side.

I have a link I found of a procedure for how to perform the experiment, but you can do it any simple way you can, look up magnets and eddy currents if you want a solid explanation.

http://youtube.com/watch?v=gkIs2yekcoo

also you want a good quality magnet, like a neodnym magnet, but the whole setup shoudlnt cost more than 50 bucks.

Answer 3

Depends what your child likes. If you show that doing something with what he likes to do will make him enjoy the project more. My 7th grader who loves soccer did electricity by making a scoreboard light up with a safe electric kit. She loved it and so did her class. So depending on what your 7th grader is into make it interesting to him/her so that they will do a great job and have a blast at the same time!

Answer 4

We just took 1st and 2nd place in two grades at our school with growing Bacterial Colonies. Swabbed various areas of the school and grew bacteria to show whats growing on computers, handrails, water fountains.

http://www.stevespanglerscience.com/product/1491

Answer 5

Rehabilitating injured raptors. Interview a local raptor center, and ask them if they can bring one of their birds the day of the fair.

Answer 6

you can do your science project on simply things like magnets, paper airplane,what kind of bubble gum last longer or any thing you might be interested in cause if you do it on something boring you will leave it until last minute!!

Answer 7

check it out in any physics book