Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

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

Could there be toxic chemicals lurking in the cupboards and closets of your home?

In this CD hovercraft science project, students will construct their own DIY hovercraft.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

This science fair project idea provides evidence that air is everywhere and takes up space.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

What happens when eyes see something that the brain knows cannot be true? In this science activity, the brain has to "fudge" it when interpreting what you see.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

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.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

This science fair project idea identifies trees using a dichotomous key.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

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

In this design challenge, your child will make a bottle rocket using typical household items.

In this activity, students will create a stop motion animation by creating a clay figure and taking a series of digital photographs.

Discover whether cold or hot water from the faucet will boil faster on the stove.

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

This science fair project idea examines the reason boats are shaped and engineered.

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!