"Exploring the Solar System: Craters" is an active, hands-on activity that demonstrates how craters form, and what they can teach us about the history and composition of planets and moons. By dropping objects of various sizes and shapes into a tub full of sand and other materials, participants simulate the formation of a meteorite crater, and then study the craters using special tools. Scientists use similar methods to study the geological processes on other planets, moons, and asteroids.