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.

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

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

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.

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!

Here is a quick experiment you can conduct at the playground to introduce or reinforce the concept of Newton's First Law, The Law of Inertia.

Which do you prefer: real or artificial? Try this sweet little taste experiment to help your kids develop a better awareness of the food they consume.

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

How well can people recall what they have observed. Test your knowledge in this fun experiment.

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

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

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

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

Is our water polluted? Help your young scientist understand the importance of taking care of the environment with this simple experiment.

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

Help your child make a beautiful homemade sandcastle that will last!

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.

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.

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

This project investigates the affect of storage temperature on microwave popcorn.

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.

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.

Word color association is just a fancy way to talk about the way we connect colors with words.