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How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

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

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

This science fair project idea examines the reason boats are shaped and engineered.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

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

Determine if gender affects the ability to identify different smells.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

This science fair project idea investigates the difference in reaction times between boys and girls.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

In this fun activity, your child will create their very own solar oven to bake s'mores!

In this experiment you will replicate the mummification process by making a hot dog mummy.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

In this science fair project, students use the streak test to tell minerals apart from each other.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

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.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

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

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.