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

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

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!

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

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

Bring the magic and mystery of the night sky to the light of day with this fun constellation art project!

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

This awesome diffraction grating experiment puts high school students' applied math skills to the test by having them calculate the wavelength of laser light.

This activity is a fun way to "go fishing" with your preschooler, while learning about the concepts of freezing and melting.

Invite your middle schooler to bungee jump ... with eggs! This experiment will demonstrate Newton's laws of physics in an entertaining way.

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

This kids' activity is fun to perform and impressive to watch. Plus, it's a great example of Newton's First Law of Motion at work.

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

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

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.

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

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

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:

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

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.