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

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

Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

For this activity your child will use the ready made glycerin base to create elegant rose petal hand soaps.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

Here's an investigative activity in which your child will discover real-world names and uses for sugar and find out how it is hidden in many different foods.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

Have your child try this classic experiment that demonstrates circular motion using a bucket and rope. Be careful, you might get soaked!

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

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Got a young scientist at home? Try this project with him!Create your own molecule design with this home-made clay recipe and some toothpicks!

This project determines what percentage of test subjects react adversely to the sound of fingernails on a chalkboard and explores their physiological responses.

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!

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

Is your child struggling with the principles of magnetism? Here's a fun activity to demonstrate polarity and understand the basic principles of magnetism.

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

Try this chemistry experiment with your curious kid and get some "shocking" results!

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

This science project examines the history of earthquakes and what we can do to prevent future disasters.

Illustrate the idea of light refraction with this exciting and mystifying experiment.

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

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.

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

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.

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

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!