Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.

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

The apparent movement of the sun has been used to keep time since the bronze age. In this science fair project, kids plot solar time against mean solar time.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

This science fair project idea investigates how different disinfectants work in killing germs.

This experiment will evaluate if the environments that people work in affect their speed and accuracy in performing mental tasks.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

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

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

Kids learn how fiber optics work with a dramatic total internal reflection experiment using a fish tank, water, and a laser pointer.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

Compare the whitening abilities of four different brands of whitening toothpaste to see which one whitens the fastest and which one whitens the most.

Science fair project that determines whether disinfectant sprays or disinfectant soaps are more effective at removing bacteria from hands.

In this science fair project, students evaluate if astrological signs provide clues about people's personalities.

In this experiment, students create music with subliminal messaging to try to influence people's decision-making.

This fun middle school science fair project idea helps student discover the concepts behind deep sea diving and how Cartesian divers work.

Which type of sunglass lenses gives you the best protection from the sun's harmful UV rays? Find out in this cool science project!

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

This science fair project idea examines whether music has an effect on a person's ability to complete a simple task that requires concentration.

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

The purpose of this project is to determine if there are fluctuations in the rising and the setting of the sun and the position of the earth as it rotates.

Measure the speed of the earth's rotation using protractors and meter sticks. This science fair project measures the angle of the sun in relation to earth.

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

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

The purpose of this science fair project is to determine whether Green Bags, with or without refrigeration, are most effective in preserving food.