Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

In this activity, your child will reflect on one role model in their life or research one historical figure that has displayed perseverance. Then, they will create a slideshow presentation or poster that defines and illustrates perseverance.

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

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

Learn how to make onigiri, a popular Japanese snack.

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.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

See how to write a love song simply in this kid-focused tutorial. Learn how to write a love song for Valentine's Day and beyond.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Get kids excited about gathering their school supplies by teaching them how to make their own writing supplies!

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

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.

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

Skip store-bought jewelry and show your stylish kid how to make her own beaded bracelets.

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

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

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

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

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

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.

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

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

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.

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

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

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 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.