Using a toy race car kids create a visual model of the Doppler Effect.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

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

Find out whether cast iron or regular teflon pans heat up faster and also retain their heat longer.

Try this fun garden graphing project with your kindergartener this summer to give him a leg up in math and science while spending some valuable time outdoors!

Find out which kind of bubble wrap fares best when put in impact.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Find out which type of sponge holds the most water.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

Nature is the greatest teacher, and you can help facilitate the lesson! Here's how to create a supply backpack to get your kid ready for science action!

What happens when colored beams of light mix? You might be surprised.

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 trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

This project compares the strength of one, two, and three-ply toilet paper.

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.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

In this science fair project, students make their own rain gauge to measure rainfall.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

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

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

Make "fossils" with your child to hide in the sandbox or at the park or the beach, to help your child explore his archaeological side.

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

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.