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

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

Using a toy race car kids create a visual model of the Doppler Effect.

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

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

In this science fair project, students use the streak test to tell minerals apart from each other.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

Find out whether a longer airplane will fly farther or a wider paper airplane.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

In this science fair project you will make a model of a cell membrane using very simple material.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

This science fair project idea determines what household items are good conductors of electricity.