Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

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.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

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.

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

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

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.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

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

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

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.

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

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

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

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

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

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

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