Using a toy race car kids create a visual model of the Doppler Effect.

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

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

Help children understand the power of germs and the importance of hand washing with this visual activity that introduces the concept of scientific inquiry.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

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

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

Use this fun activity to make an optical illusion picture that helps your kindergartener explore the sense of sight, and sharpen his observation skills!

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.