This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

This science fair project idea demonstrates that plants give off water.

This science fair project teaches students the differences between fruits and vegetables.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

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.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

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.

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

Teach your first grade scientist the difference between liquids and solids using maple syrup.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Discover whether cold or hot water from the faucet will boil faster on the stove.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

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

This science fair project teaches students about wilting and browning of salad greens.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Using a toy race car kids create a visual model of the Doppler Effect.

This science fair idea is a great way for kids to explore static electricity. Kids will give a comb a static charge and watch as it separates pepper from salt.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

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

This snowman's not abominable, he's adorable! Your child can bring her very own snowman to life while practicing how to create texture.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

This classic children's game demonstrates how sound travels through air vs. through a solid.

Set up a fun guessing game for your curious kindergartener, one that will test her ability to use all five of her senses.

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.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.