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.

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!

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

Check out this fun science fair project idea to learn about seismic waves and how fast they travel during an earthquake.

Introduce your child to science with something they see everyday--their shadow!

This experiment will explore how mallets of various materials and weight create sonic tones of varying lengths.

This science fair project idea demonstrates sonar mapping of the ocean floor.

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

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

Teach your child how butter is created by shaking up cream the old-fashioned way.

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

This activity will help your child review science concepts, learn new ones, and become familiar with examples of various concepts in science. Plus, it's fun!

Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.

Teach your little scientist about the amazing powers of gravity by comparing the falling speeds of two yummy fruits

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

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

What happens when colored beams of light mix? You might be surprised.

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

This science fair project idea produces varying pitches of sound.

Looking for a way to help your teen explore the fun side of physics? How about a round of Saturday morning cartoons?

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

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

Help your kindergarten scientist discover relative size, density, and buoyancy with this fun, pumpkin science project!

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.

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

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!

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

Before your treat your child (and yourself!) to a yummy snack, help her learn a little about Sir Isaac Newton's First Law of Motion!

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.

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