Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Start your toy engines -- this is going to be a fast and friction-filled race!

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

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