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, 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.

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.

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

Help your child make a recycling poster for your household and teach them how to take care of the environment!

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

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

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

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.

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

Learn how to make a mustache with these simple instructions. See how to make a mustache on a stick for Halloween, costume parties, or dress up.

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

Ever wonder how those kooky kazoos work? Get to know the science behind this silly instrument by making your very own kazoo!

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.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

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.

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

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

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

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.

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.

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

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 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.