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

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

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

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

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

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

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

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

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

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

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

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

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.