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.

This science fair project idea produces varying pitches of sound.

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.

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

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

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.

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

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

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

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

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

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!

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.

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

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

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

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!

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

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

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

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

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

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.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

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

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

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

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?

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