In celebration of Earth Day, help your fifth grader write a poem from the Earth to its inhabitants.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

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

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

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

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Use dirt and different colors of craft sand to make unique layers in a clear plastic cup to represent the layers of the Earth.

Blend science and math to explore a very important first grade social studies question: does our planet contain more land or more water?

Use simple materials to build a "worm hotel" with your kindergarten soil scientist...and see what worms really do all day.

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

Help your kindergarten scientist explore an important part of earth science: how soil retains water.

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

Can't make it to the beach? Bring the science of ocean waves home with this fun earth science-related craft.

Get your fifth grader involved in some earth science by helping her plan and create her very own rock collection.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

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!

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

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!

It's a rare kid who doesn't like a sandbox. Next time you're out digging, build in some earth science, 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.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

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

This simple experiment serves as an introduction to the greenhouse effect.