This science fair project idea investigates the difference in reaction times between boys and girls.

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.

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

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

This science fair project idea explores substances that cause a bubble to last longer.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

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 investigates how a bottom keel helps keep a boat from rocking back and forth.

This science fair project idea investigates how color affects temperature.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

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

This science fair project idea investigates how the shape of an object affects drag.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

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

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

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

This science fair project explores how osmotic pressure forces water through the root up into the plant.

In this project, waves of vibrations are experimented with using water in glasses.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

The project investigates how friction affects motion by using different surface textures.

Cleaning can be a chore, but not with this sudsy experiment!

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

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