This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Make a backbone model to explore human anatomy and life science.

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

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

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

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.

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.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Discover whether a metal will expand under hot water.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

In this science fair project, students use the streak test to tell minerals apart from each other.

This science fair project idea investigates the hardness property of minerals.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

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!

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

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

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.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

This science fair project idea explores whether white light can be separated into different colors.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

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

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.

In this activity your child will create their very own marble maze!

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

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