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 investigates the ability of different whitening toothpastes to whiten teeth.

This biodiversity project examines the biodiversity in your own backyard.

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

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.

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

This science fair project teaches students about wilting and browning of salad greens.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

This science fair project teaches students the differences between fruits and vegetables.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

This science fair project idea explores the egg's thin membrane.

This science experiment has students test whether a snail moves faster on concrete or dirt.

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?

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.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

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

In this fun activity, your child will create their very own solar oven to bake s'mores!

Discover whether a metal will expand under hot water.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!