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This science fair project idea produces consumable fresh water from salt water through desalination.

Science fair project that explores the natural process of limestone formation.

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

This science fair project idea investigates how images are influenced by changes in light.

Take a dive into the candy jar with this yummy science experiment.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

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

In this science fair project caffeine will be extracted from Gunpowder Green Tea, illustrating the isolation of a naturally occurring product from a plant.

In this science fair project, young children will become aware of and have the opportunity to experience the four basic tastes: sweet, sour, salty, and bitter.

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

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

Is there any correlation between hot tubs and high blood pressure? Kids discover the answer (and its biological basis) in this cool science fair project.

Slime mold is no longer classified as fungi! So what is it? In this cool science fair project, learn how to grow slime mold and explore its behavior.

Demonstrate and describe acid-base reactions of baking soda and baking powder by making pancakes.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

Young physicists learn about apparent weightlessnessâthat weird sensation you sometimes feel in elevators, turbulent airplanes, and roller coasters.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

This science fair project idea demonstrates how our fingers prune when in water.

Determine whether fresh vegetables have more calories or less calories than canned vegetables.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

This science fair project idea explores substances that cause a bubble to last longer.

This project compares different liquids and the freezing, melting and boiling points of liquids.

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

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

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.

Is exercise a cellular activity? Check out this fun science fair project idea to compare the carbon dioxide production before and after exercise.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.