This science fair project idea determines the probability of a coin landing heads or tails.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

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

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

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

Check out this cool science fair project on identifying rocks and minerals for kids.