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

Challenge your young dinosaur lover to examine dinosaur footprints and then create their own dinosaur fossil in this hands-on activity.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

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

Discover how and which salt melts ice the quickest.

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.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

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.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

Put an oatmeal box, a flashlight, and some construction paper together and you have the makings of an incredibly cool bedroom planetarium!

Construct and experiment with a periscope using reflected light rays to gather an image.

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

Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

Do you think heat can affect a plant's growth rate?

Help your young learner discover why the insects that a spider eats stick to its web but the spider doesn't.

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

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

Plants and light seem to be good buddies, but how far does the friendship really go?

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

Has your child ever played weatherman? Try this science activity that lets kids try their hands at observing and predicting the weather.

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.

Start your toy engines -- this is going to be a fast and friction-filled race!