This awesome diffraction grating experiment puts high school students' applied math skills to the test by having them calculate the wavelength of laser light.

Science fair project that tests how well various sunscreens protect skin from the sunâs ultraviolet radiation by measuring their effect on sun-sensitive paper.

Does fear cause the same physiologic responses in men and women? This experiment measures people's blood pressure and heart rate while watching a scary movie.

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

Science far project which determines whether the material of a baseball bat affects the distance that the baseball will travel.

The actual factors affecting friction may surprise you! Learn about the coefficient of friction and put some trigonometry into practice in this science project.

Easy and cool middle school science fair project on ripening process of fruits and measures you can take to prevent fruits from rotting and delay ripening.

In this physics project, you'll learn how to find the maximum height of a projectile using some math and trigonometry.

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

The Galileo inclined plane physics experiment was one of the first ways scientists calculated acceleration due to gravity. Do it yourself in this project!

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.

This experiment demonstrates the conservation and transfer of energy using a marble rolling over sandpaper.

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

In this science fair project, high school students will try to determine the mathematical patterns in JS Bach's two movement preludes and fugues.

What happens when colored beams of light mix? You might be surprised.

Learn about endothermic and exothermic reactions and energy exchange by experimenting with temperature change in chemical reactions.

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

This project examines whether more expensive golf balls translate into better results on the golf course.

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

In this free science fair project idea, kids will conduct an easy electrolysis of water experiment to test solutions of salt, baking soda, tap water, and more.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

This science fair project idea determines which flower lasts the longest.

Explore the effect of wind speed on the burning rate of a candle.

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

This project explores the interaction between air pressure and playing surface in determining a basketballâs bounce.

Science fair project that guides you through how to test the humidity in the environment using a homemade psychrometer.

This science fair project idea discovers the principle of conservation of mass.