Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

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

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

In this project, different brands of microwave popcorn are tested and compared.

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

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Find out whether a longer airplane will fly farther or a wider paper airplane.

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.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

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.

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.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

The project determines the forces that cause paper airplanes to fly and determine which type of paper airplane flies the farthest.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

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

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.