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Mini-Quiz: Jupiter's Galilean Moons

by Ron Kurtus (updated 18 January 2022)

Take this Mini-quiz to check your understanding of the lesson material.

1. Which Galilean moon is larger than the Earth's moon?

Only Europa

They all are larger

None of the Galilean moons

2. Which of the moons contain water or ice?

Only Io

Io and Europa

Europa, Ganymede, and Callisto

3. What is the rate of rotation as the moons orbit Jupiter?

One turn on its axis per orbit

The moons don't rotate

28 days

If you got all three correct, you are on your way to becoming a Champion in Astronomy. If you had problems, you had better look over the material again.

Study the skies

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