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.

In this activity, your child will be challenged to make a tower using paper cups.

This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

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

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

Discover whether cold or hot water from the faucet will boil faster on the stove.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

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

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Learn all about balance and motion as your child designs a corn maze!

Test whether plants can grow without sunlight and water.

Make all-natural dye from vegetables to create gorgeous homemade play-silks!

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

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

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Before Twitter, birds were the ones tweeting, not humans. Have your child discover the magical sounds of nature while recording birds around his neighborhood!

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

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

This science fair project idea determines which method of hand cleansing is the most effective.