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.

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

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

Your fourth grader will be astonished to discover the significance and intricacies of his spine as he builds a model of a human vertebral column.

Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

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

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

This experiment tests which gender is better at catching how a magician performs his tricks.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Is your child a nature nut with an eye for creative, green-friendly projects? Introduce them to this amazing DIY bird feeder!

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

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

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

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

This science fair project investigates why the number of visible stars changes from place to place.

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

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

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.