Find out whether matte or shiny nail polish lasts longer.

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

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

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

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.

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.

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

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

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 observe and determine how well your cat uses his whiskers to navigate through a maze.

Discover whether a metal will expand under hot water.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

This science experiment tests if dog saliva can really help heal wounds.

This science fair project idea investigates the hardness property of minerals.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

This project explores ways to prevent static electrical shocks.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

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

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

This science fair project idea explores which fruit molds the fastest.

In this experiment we will be determining whether birds prefer certain colors of seed.