In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

Bring back the groovy memories by making shrinky dinks using household materials, while learning about the science of plastics. Here's how to get started:

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

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!

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

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.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

This kindergarten science activity will help her explore the changing states of matter which transform an egg from raw to soft to hard-boiled.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

What is the Doppler Effect, or the Doppler Shift? The purpose of this science fair project is to determine how distance impacts the Doppler Effect.