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

This science fair project idea experiments with spinning color wheels and optical illusions.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

This classic children's game demonstrates how sound travels through air vs. through a solid.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.