Start thinking about how the internet works by assembling an Ethernet cable of your own!

Help your kindergarten scientist discover relative size, density, and buoyancy with this fun, pumpkin science project!

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

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

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

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

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

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 Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!