Give your budding young observers a chance to discover simple machines at use in their own home.

In this fun activity, your child will create their very own solar oven to bake s'mores!

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!

Making your own glass cleaner is easy, effective and inexpensive!

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

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.

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

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.

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.

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.

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!

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!

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

This science fair project idea produces varying pitches of sound.

If your fourth grader is obsessed with all things glow-in-the-dark, then here's an activity that will really light up her imagination!

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