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

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

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

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.

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.

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

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.

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?

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

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

The purpose of this science fair experiment is to investigate whether the color of your hair affects how much static electricity is carried.

Check out this fun middle school science fair project idea on Newton's third law of motion and how you can change the speed of a rocket.

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.

In this fun science experiment, make a balloon car and test it on different surfaces to learn about sliding friction and rolling friction.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

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

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

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

The objective of this science fair project is to determine whether drawing with the right side or the left side of your brain will produce a better picture.

The goal of this science fair project is to determine which cheese grows mold the fastest: Vermont Cheddar, American, Brie, or Camembert?

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

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.

The purpose of this science fair project is to investigate whether cooking seeds before planting will speed up germination and growth.

This science fair project idea identifies and understands adaptations in birds.

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

This middle school project examines the strength of horizontal versus vertical pointing eggshells.