Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This simple project makes young children aware of their sense of smell and its capacity for providing them with information about their world.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

This science fair project idea explores whether color affects a person's emotional state.

Help your kindergarten scientist explore an important part of earth science: how soil retains water.

This science fair project idea investigates if fats add to the flavor of food.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

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

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

This activity is a fun way to "go fishing" with your preschooler, while learning about the concepts of freezing and melting.

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.