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.

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

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

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

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

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

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

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

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.

Help your child understand surface tension by showing them how they can create a "skin" on top of water.

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

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

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

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

Take advantage of the fact that ink and water don't mix and introduce your kid to suminagashi, a Japanese form of art.

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.

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

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

Here is a quick experiment you can conduct at the playground to introduce or reinforce the concept of Newton's First Law, The Law of Inertia.

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?

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.

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

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

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

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

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

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

Introduce your child to the amazing, almost magical phenomenon of static electricity!

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.