The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.