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This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

Discover how and which salt melts ice the quickest.

This science fair project idea experiments with spinning color wheels and optical illusions.

In this fun experiment, we'll find out how color affects heat absorption!

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

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

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

This basketball project explores the best way to make the perfect shot every time.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

In this science fair project, students create their own miniature salt flats at home.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

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.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

This science fair project investigates why the number of visible stars changes from place to place.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

This science fair project idea produces varying pitches of sound.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

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 examines whether boys and girls differ in reflexes.

Construct and experiment with a periscope using reflected light rays to gather an image.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.