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Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

Examine how the tire treads of a bicycle affect its rolling frictional force. Change tires, test speed performance on different terrains.

Explore if planting seeds in a certain direction will affect how fast it germinates.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

Discover the force of water! This article provides step-by-step instructions for creating your own science experiment.

How powerful is the reaction between baking soda and vinegar? Find out here!

This science fair project introduces children to static electricity and the idea that electricity is more than lights and plugs.

In this activity your child will make a coiling snake out of simple household materials, and also find out why they coil.

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

Here's a math, science, and social studies activity: help your kindergartener become a "coin archaeologist" by examining how different coins look and feel.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

Learn about the horizontal and vertical motion of a projectile in this cool physics science fair project idea for advanced middle and high school students.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Science fair project that measure winds speed, temperature, and time of day in order to determine the origins of the wind.

Explore concepts in current and coltage with these Van de Graaff generator experiments.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

Try this simple 2nd grade science experiment to teach your child about the principles of luminosity and light reflection.

Slip some science into storm watching with a homemade rain gauge!

Celebrate April Fools' Day with a science prank that is sure to amuse...and educate too!

Create uphill flow of water by using a siphon. Create vacuum by suctioning one end of tube, and submerge it under water. Watch the direction the water travels.

Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.

Is there any correlation between hot tubs and high blood pressure? Kids discover the answer (and its biological basis) in this cool science fair project.

Help your child explore chromatography, which is the process of separating colors or pigments, and create a neat art project in the process!

Young physicists learn about apparent weightlessnessâthat weird sensation you sometimes feel in elevators, turbulent airplanes, and roller coasters.

Have your kid build an ice sculpture in this activity that's so fast, fun, and messy it's the perfect way to demonstrate how much fun experiments can be!

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.