Planetary Science Crossword

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Across
  1. 2. This planet has high-altitude methane clouds and a large moon called Triton.
  2. 3. This planet has the most extreme temperature variations.
  3. 4. Scientists want to send a mission to this moon to search for life in its subsurface oceans.
  4. 7. This moon has volcanoes that erupt steam, ice, and dust.
  5. 10. This is the most volcanic planetary body in the Solar System.
  6. 11. This planet has a thick atmosphere of carbon dioxide.
  7. 13. This planet has an axial tilt that has turned it completely sideways.
  8. 14. The largest volcano in the Solar System, Olympus Mons, is on this planet.
  9. 15. This is the only moon in the Solar System with a thick atmosphere.
Down
  1. 1. This is the largest moon in the Solar System.
  2. 5. This planet has the most extensive ring system in the Solar System.
  3. 6. This planet has no solid surface to stand on, and at least 67 moons.
  4. 8. This is the only Galilean moon that doesn’t have a differentiated (layered) interior.
  5. 9. This moon shares its orbit with Epimitheus.
  6. 12. This is the only planet in the Solar System with liquid water on its surface.