This science fair project examines how seeds hitchhike on animals and clothing.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

Find out whether packaged seeds actually do expire in this new science fair project idea.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Do different types of oil mix or stack? Find out in this science fair project idea!

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

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