Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

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

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

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

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.

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

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

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

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.

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

This fun, think-outside-the-box activity introduces kids to gravity and other basic scientific concepts as they construct an impressive marble run!

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!

It's easier than you think to make homemade play dough -- just a few pantry staples makes a natural version of the toy that kids have loved for generations.

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

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

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

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

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

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

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

Help your kindergarten scientist understand the concept of surface tension with this simple science experiment.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

Teach your child about using pumps to move water in this simple and educational preschool science activity!

Here's a science activity that lets a first grader use an empty dish detergent bottle to create his own fountain as he explores air pressure.

How do people move pianos and heavy furniture into tall buildings? Show your kids some pulley potential with this simple household exercise!