Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

This science fair project idea explores whether talking to a plant will help it grow.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.