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.

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

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

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

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

The pinwheel is a simple toy that has been around for years and uses the wonders of the wind to spin it and delight kids of all ages!

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

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

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

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

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.

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.

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

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

Help your child understand surface tension by showing them how they can create a "skin" on top of water.

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

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!

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!

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

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

Satisfy your sweet tooth with this easy summer activity! Make homemade ice cream and let your child practice his science skills.

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!

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