In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

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

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

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

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

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

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

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.

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.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

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 onigiri, a popular Japanese snack.

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 a weathervane with this fun and simple meteorology project for fourth graders.

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.

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

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

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.

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!

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

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

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.

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?

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