Across
- 4. Rising and falling of planet's oceans
- 7. Plumes of vapor erupting from Enceladus
- 8. Speed at which a moon spins on its axis
- 9. How tightly a moon's materials packed
- 10. Many of the larger moons are this shape
Down
- 1. The limit for a moon to break apart
- 2. How many moons may have formed
- 3. Pockmarked depressions on many moons
- 5. Outermost layer of solid moons like the Moon
- 6. Different geology seen on moon surfaces