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

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

What better way to celebrate spring than with a fabulous flower party? Pack the day with fun flower activities and treats for a truly springalicious event!

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Enjoy those warm spring and summer nights with your child while teaching some basic astronomy at the same time.

Give your local birds a treat — and your young birdwatcher some fun — with this simple DIY bird feeder.

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

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

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

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

In this design challenge, your child will create a parachute for a small toy using typical household items.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.