This classic children's game demonstrates how sound travels through air vs. through a solid.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

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.

Help your little one figure out the differences between the worlds of air, land and water, a huge step in understanding how our environment works.

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

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

Make your own greenhouse - out of a balloon! Your child will learn how greenhouses work as they plant radish seeds and watch them grow.

Try this activity with your child to explore what happens to rain (and the living things that need it) when it becomes polluted.

This science fair project teaches students about wilting and browning of salad greens.

Tin can phones offer something modern versions don't—a fun project to make with a friend, and a dramatic illustration of vibration and sound waves.

This fun and crafty activity is easy enough for your child to lend a helping hand and makes a great indoor or outdoor game.

Kids are sure to be entranced by the magic of the ocean when they create their very own ocean in a bottle.

Your preschooler can learn how to siphon water with just two bottles and a plastic tube in this fun, educational science activity.

Help your kindergarten scientist explore an important part of earth science: how soil retains water.

In this fun activity, frozen cubes of paint provide your preschooler with a cool new way to paint a masterpiece.

This slightly messy, but tons-of-fun tactile activity will cement the idea of the land and water as pictured on maps in your young learner's mind.

Use popcorn in this tasty experiment to explore the five senses at home with your kindergartener!

This easy project for little hands uses mushroom spores to make an imprint of the mushroom, and the result is very beautiful.

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

This activity is a fun way to "go fishing" with your preschooler, while learning about the concepts of freezing and melting.

Use simple materials to build a "worm hotel" with your kindergarten soil scientist...and see what worms really do all day.

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

Is that seed alive or not? Here's an exciting way for kindergarteners to make a seed museum that your child can watch, using simple household materials.

Take a nature walk in your backyard or local park to find one object for every letter of the alphabet. Then put them together in this handy nature book.

In this awesome science fair project idea, kids will be attempting to pick up different objects using snail slime.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.