Science Olympiad Solar System Practice Test

The fourth largest moon of Jupiter is Callisto. It is notable for being one of the largest moons in the solar system and is characterized by its heavily cratered surface, indicating a history of impacts. Callisto is the third largest of Jupiter's four major moons, known as the Galilean moons, which also include Io, Europa, and Ganymede. In terms of size, Ganymede is the largest, followed by Titan of Saturn, making these other moons smaller than Callisto. Understanding Jupiter's moons helps to illustrate the diversity of celestial bodies in our solar system and the unique characteristics that define them.