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

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

This science fair project idea investigates the difference in reaction times between boys and girls.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

This science fair project idea explores whether white light can be separated into different colors.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

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.

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

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

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

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

This science fair project idea determines what household items are good conductors of electricity.

This science fair project idea investigates how color affects temperature.

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

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

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.

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

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.