In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

How powerful is the reaction between baking soda and vinegar? Find out here!

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

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

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!

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

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.

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

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

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.

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.

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

This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

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

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!

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

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

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

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

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.

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

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

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.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.