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

In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

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

This science fair project idea determines if the temperature of rubber effects how high it bounces.

The purpose of this science fair project is to learn which substance best preserves apples. Learn about enzyme interactions in fruit and scientific processes.

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

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

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.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

Investigate which substances are most effective at removing salt from water.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

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

Students will investigate the illumination durations and intensities of different luminous substances of different colors of the spectrum.

Use a fish tank to simulate a pond! This science fair project explores the relationship between acid rain and the dissolved oxygen concentration of water.

The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.

Melt the ice, but save the lawn. The objective of this science fair project is to explore the effects of different substances on melting ice.

The purpose of this science fair project is to investigate which food wrapping works best to keep refrigerated and non-refrigerated foods from spoiling.

Determine whether the application of Febreeze will lower the bacterial count.

Check out this cool and free middle school science fair project idea on how to make a solar oven.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

This project examines the vulnerability of fruit flies, Drosophila melanigaster, to irradiation. Will exposure result in mutations?

The purpose of this science project is to determine which chemical best lowers the temperature of water in a cold pack and if the amount affects its use.

This project examines germs and their spread in households. The goal is to learn how to stop the spread of germs and other diseases.

The objective of this science fair project is to determine whether planaria reproduce asexually by regeneration.

The goal of this science fair project is to investigate the effect of irradiation on the germination and growth of vegetables, such as the tomato plant.

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 experiment is to investigate whether the color of your hair affects how much static electricity is carried.