In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Your child can use leaves and grass to create his own outdoor art in celebration of Earth Day...all he needs are is the great outdoors and some creativity!

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

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.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

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

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.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

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

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

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

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

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!

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.

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

In this project, the affect of acid rain is simulated by the acid, vinegar.

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

Put your young paleontologist's puzzle-solving skills to the test by having her hunt for dinosaur bones and then assemble them to create dinosaur skeletons.

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

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

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

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

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

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

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.