A good idea for a science fair project is to do a project where you test which plant food will be the most effective. also, you can do which orange has more vitamin c. and who is the fastest kid in...
Well think of your favorite thing to do. then take that subject and turn it into a question. say my favorite thing to do was coloring, i could talk about crayons like what color crayon melts fastest....
I've seen photos of solar backpacks. I'm not quite sure what they were charging, but perhaps a solar cell phone charger, or a solar radio.Flexible solar panels/cells would probably be best for...