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

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

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

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

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

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

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

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Learn how to make onigiri, a popular Japanese snack.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

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.

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

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

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.

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

Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

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

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.

How many ways can Christmas fun "add up"? Download this fourth grade math worksheet and find out!

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

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.

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.

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.

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!