In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Put your young paleontologist's puzzle-solving skills to the test by having her hunt for dinosaur bones and then assemble them to create dinosaur skeletons.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

This biodiversity project examines the biodiversity in your own backyard.

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

Start your toy engines -- this is going to be a fast and friction-filled race!

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

This science fair project idea compares biodiversity between drops of water.

Is it a square or a circle? See if you can trick your friends with this zany science project!

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

This science activity will help your student explore the changes that occur to transform an egg from raw to soft to hard-boiled.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

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

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

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

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.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!