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.

Calculate the mass of the Earth using the sidereal and calendar period of the Moon and Newton's Law of Universal Gravitation in this physics science project!

What if the shape of the Earth weren't spherical? How does its shape affect our gravity, climate, and tides? Model these questions in this cool project!

The purpose of this project is to determine if there are fluctuations in the rising and the setting of the sun and the position of the earth as it rotates.

Measure the speed of the earth's rotation using protractors and meter sticks. This science fair project measures the angle of the sun in relation to earth.

In this cool elementary school science fair project idea make a model to learn what happens to the Earth's surface when ice moves over land.

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 experiment explores the trend of reactivity in the alkaline earth metals as you go down the second column of the periodic table of elements.

This fun science project explores the climate change over the course of the history of Earth and helps construct a diorama representing a geologic time period.

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.

Looking for a fun earth science project on continental drifts? Check out this fun science fair project idea to explore how Pangaea may have broken up.

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

The goal of this science fair project is to identify the galactic center of the milky way using globular clusters, as found through Google Earth.

How is NASA able to launch something into orbit around the Earth? Learn about the relationship between gravity, speed, and orbit in space in this cool project!

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.