Create a double-slit interference out of cardboard. Produce an interference pattern that demonstrates the wave and particle characteristics of light.

This science fair project idea determines if material and tensile strength of different types of skateboard wheels affects the velocity of the skateboarder.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

This science fair project idea determines exactly how much of an effect road grade has upon a cyclistâs speed.

Check out this cool science fair project idea to explore various aspects of projectile motions like mass, angle and distance.

Determine which factors promote the greatest memory interference. Administer test, time how long it takes subjects to complete different tasks.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

Determine how different measurements of the same object might yield different values. Provide as many reasons that you can think of.

What's the difference between centripetal and centrifugal force? Students find out by seeing both in action as they conduct this experiment.

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

2011 VIRTUAL SCIENCE FAIR ENTRY: The objective of this science fair project is to develop a microcontroller and circuit that can conduct electricity.

How do search engines work? What makes various search engines different? This project delves into the world of web crawlers, caching, indexing and algorithms.

Get a cool science project idea on a photovoltaic cell and explore the various factors that affect the energy output of the photovoltaic cell.

This project concerns activity happening millions of miles away, on the sun.