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.

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

This is a fun way to introduce kids to the concept of volume, and give them a quick hands-on activity to boot.

This science project examines the history of earthquakes and what we can do to prevent future disasters.

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

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

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

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

What is the Doppler Effect, or the Doppler Shift? The purpose of this science fair project is to determine how distance impacts the Doppler Effect.

The purpose of this science fair project is to build a basic radio.

Have your child try this classic experiment that demonstrates circular motion using a bucket and rope. Be careful, you might get soaked!

Help your kid feel like a superhero with this safe and fun science experiment that creates an electrical charge that's like a mini lightning bolt!

The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.

Learn with makes water molecules work with this fun and easy science activity!

This quick and simple preschool mirror activity will introduce your child to the science of reflection and light with a flashlight experiment and picture game.

Find out whether matching resonant frequencies can cause objects to shatter.

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

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

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

Get a cool and easy science fair project idea which helps high school students in understanding concepts behind the working of a microphone.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.