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.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

This science fair project idea deals with the qualities of shade on a sunny day.

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

This science fair project idea investigates whether plants can survive being frozen.

This science fair project idea explores whether talking to a plant will help it grow.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

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

This science fair project idea determines if the color of light affects the growth of plants.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

Find out whether packaged seeds actually do expire in this new science fair project idea.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

This science fair project idea explores the different properties & interactions of sugar molecules.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

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.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

In this project, different childproof containers are tested to see how childproof they really are.

This science fair project idea researches the effects of acid rain on plant growth.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

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

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.