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

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

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 surprisingly good glue recipe comes from common kitchen items.

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.

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

Teach your child how butter is created by shaking up cream the old-fashioned way.

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.

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

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.

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

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

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

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

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

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