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Teach your little scientist about the amazing powers of gravity by comparing the falling speeds of two yummy fruits

In this fun science fair project idea learn the difference between additive and subtractive color and why they are handled differently.

Your 1st grade scientist will improve her observation skills as she's encouraged to eat healthy by comparing the dry and fresh fruit in this experiment.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

This experiment investigates whether there are certain sounds that affect men and women differently

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

This classic children's game demonstrates how sound travels through air vs. through a solid.

Here's a science activity that lets a first grader use an empty dish detergent bottle to create his own fountain as he explores air pressure.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Bring back the groovy memories by making shrinky dinks using household materials, while learning about the science of plastics. Here's how to get started:

Explore the wave-particle duality of light! Learn how light can behave as both a wave and a particle in this cool physics science fair project idea for kids.

This science fair project idea experiments with spinning color wheels and optical illusions.