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 balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

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

Help your kid feel like a superhero with this safe and fun science experiment that creates an electrical charge that's like a mini lightning bolt!

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

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!

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

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 the scientific concept of evaporation with this fun outdoor science activity.

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.

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

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

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

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

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.

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!

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

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

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

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