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.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Create a self-portrait from natural materials in this collage craft activity!

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

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

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 activity, your kid will watch coal turn into crystals right before her very eyes, and learn some science along the way!

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

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

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

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

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

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

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

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.

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.