In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

In this fun activity, your child will create their very own solar oven to bake s'mores!

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

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

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!