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How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

This science fair project explores different types of endangered frogs, and why some are endangered while others are not.

Learn how to use the Punnett Square to predict the gene combinations of dominant and recessive traits in this fun and easy genetics science project!

Explore the wave-particle duality of light! Learn how light can behave as both a wave and a particle in this cool physics science fair project idea for kids.

Kids learn how fiber optics work with a dramatic total internal reflection experiment using a fish tank, water, and a laser pointer.

Check out this fun science project idea to explore different types of starches and learn how removing starch affects the quality and taste of food.

This science fair project idea explores whether the color of surroundings affects human mood.

Test the placebo effect in different groups of people.

Evaluate the efficacy of different pain management techniques.

The objective of this science fair project idea is to find out whether refrigerating cosmetics will extend their shelf-life and longevity.

Science fair project that designs a video game that requires players to use relevant skills.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

This science fair project idea demonstrates sonar mapping of the ocean floor.

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

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

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!

Here's a simple science activity that will help your child better understand how wells bring us water.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

In this activity, your child will be challenged to make a tower using paper cups.

This science fair project idea studies the differences in gender perception between people.

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.

Discover whether people can distinguish what a person looks like just by listening to their voice.

Will people perceive your intelligence differently depending on your hair color? Find out in this science fair project idea!

In this science project, young children observe, record, and create collections of colors in their world and increase their powers of observation.

This project examines whether people's taste perception is influenced by what they see.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

In this experiment we use Scotch Guard to make sand that resists water.

This science project examines the thermal properties of several major greenhouse gases.