Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Use pepper and soap to discover some fun facts about the properties of water.

This science fair project idea investigates how magnetism can defy the force of gravity.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

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

How do organic materials become soil? This science experiment measures what materials biodegrade.

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.

This science fair project idea's objective is to become familiar with items your family regularly throws in the trash.

The project investigates how water and movement affects erosion.

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

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

This science experiment has students test whether a snail moves faster on concrete or dirt.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

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 teaches to understand and explore the concepts of crystal formation and dissolving substances.

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

In this project, a basketball containing different psi is dropped to see how well it bounces.

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.