This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.