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

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

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

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

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

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

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

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

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 does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

Every time a sound is produced it emits a sound wave. This experiment demonstrates how sound travels, using nothing more than a spoon and a string!

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

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.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

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!

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.

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

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

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