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.

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

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.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

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

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

A mixture of botany, exploration, Abstract Art and Pop Art color theoryâthis activity never gets dull! Start by exploring outdoors and finish with indoor art.

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

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

Check out this hot project idea to culture bacteria and determine if the claims about the anti-bacterial properties of curry and cinnamon are true.

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

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

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

What's cooler than an explosion? Not much! This simple science experiment lets kids build their own pop rocket. So put on your safety goggles and let her rip.

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!

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.