This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

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

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 test the growth rate of a plan in a crystal medium in comparison to traditional soil.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

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

Learn all about balance and motion as your child designs a corn maze!

Test whether plants can grow without sunlight and water.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

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 idea produces sounds by creating vibrations using different objects.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

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?

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.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

This science project teaches students to classify different shapes of leaves.

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

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

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.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.