Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

How to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

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

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

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.

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

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

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!

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

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.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

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

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

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

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

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

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.

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

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.

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.

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

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

This surprisingly good glue recipe comes from common kitchen items.

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.

Introduce your child to the wonders of colorful chemistry with this simple food coloring project.