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

Encourage a bit of mystery and intrigue by teaching your clever kid how to create and use secret codes.

Learn how to make a trick-or-treat bag for Halloween. See how to make a decorative trick-or-treat bag with this Halloween craft tutorial.

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

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

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

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

Show your fourth grader how to embrace a green lifestyle and enjoy the outdoors with a homemade, recycled picnic basket.

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

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Looking for way to help Japan? Start by making paper cranes! Learn how you and your child can show your support for Japan through the art of origami.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

Help your 4th grader learn how to make a topographic map and strengthen key grade level social studies and math skills in the process.

Help your third grader practice his writing skills and learn to operate household appliances like the washing machine or DVR with this Family How-to guide!

Want to reuse materials that would otherwise get tossed in the trash? Show your third grader how to get crafty with old newspaper and fabric.

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.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

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.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

Show your child how to paint in true Georgia O'Keeffe style. He'll enjoy painting art inspired by a master, and boost his math skills, too.

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

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

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.

Filling out forms can be a great learning experience for kids. Here's how to give your child some FORMal training.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

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