This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

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

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

An home science experiment for older students that teaches about the science behind heat.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

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 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

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

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.