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This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

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

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

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

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

This kindergarten science activity will help her explore the changing states of matter which transform an egg from raw to soft to hard-boiled.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

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

Set your teen on the beat in a real world "crime scene" investigation. Can he tell whose fingerprints are on a drinking glass?

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?

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

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

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

This experiment investigates whether there are certain sounds that affect men and women differently

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

With this activity, not only will you be experimenting with giving accurate information, you'll also teach your child how to write good scientific procedures.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

How to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

This science fair project idea experiments with spinning color wheels and optical illusions.

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

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

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.

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