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

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

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

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!

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

It's food. It's Thanksgiving tradition. And guess what: Cranberry Sauce is also science! Try our simple recipe/experiment.

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

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

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

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.

Try this chemistry experiment with your curious kid and get some "shocking" results!

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

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

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

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

The purpose of this science fair project is to build a basic radio.

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

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

This science fair project idea produces varying pitches of sound.

Learn with makes water molecules work with this fun and easy science activity!

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

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

This science fair project idea produces sounds by creating vibrations using different objects.