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This experiment investigates if small changes in your diet can alter your basal body temperature.

Design and build an invention inspired by Rube Goldberg's designs. Build your invention. Test the machine, write a detailed report.

This science fair project idea determines whether dogs can be trained faster using a food reward or praise.

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

How fast is the wind blowing? This science experiment provides step-by-step instructions to help you answer this question.

This fun, think-outside-the-box activity introduces kids to gravity and other basic scientific concepts as they construct an impressive marble run!

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

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.

Teach your fifth grader about the wonders of wind by making and observing this winter wind chime.

This project investigates whether chewing gum can help a majority of people with focus and concentration.