Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Teach your little scientist about the amazing powers of gravity by comparing the falling speeds of two yummy fruits

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Your 1st grade scientist will improve her observation skills as she's encouraged to eat healthy by comparing the dry and fresh fruit in this experiment.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

Invite your fifth grader to test the different rates of liquid absorption in synthetic and cotton materials, such as nylon and cotton.

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

Which do you prefer: real or artificial? Try this sweet little taste experiment to help your kids develop a better awareness of the food they consume.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

This biodiversity project examines the biodiversity in your own backyard.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

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

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

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

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

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

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.