Solar System Crossword

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Across
  1. 1. This planet's space mission is called Juno.
  2. 4. The farthest planet away from the Sun.
  3. 9. A large dormant volcano on Mars
  4. 11. The percentage of water that makes up Earth
  5. 15. Saturn's largest moon.
  6. 16. Biosphere 2 was a ___.
  7. 18. Some people believe Uranus' core is made of?
  8. 19. The two elements that make up Earth's core
  9. 20. One of Mars' moons
  10. 23. Uranus' moons are named after ___ characters.
  11. 26. How many sets of rings does Uranus have?
  12. 27. How many layers does Earth have?
  13. 28. Clusters of rimless depressions with flat floors and haloes of bright material surrounding them.
  14. 29. The ___ in Uranus' atmosphere makes the planet appear bluish in color.
Down
  1. 2. Which planet has strong winds comparable to a category four hurricane?
  2. 3. Mars' atmosphere can be described as ___.
  3. 5. Earth's rotation period
  4. 6. A day on ___ is longer than a day on Earth
  5. 7. Jupiter's nickname is King of the ___ Gods.
  6. 8. The ___ creates the seasons for Neptune.
  7. 10. Jupiter's key physical feature.
  8. 12. Neptune and Uranus' space mission is named ___.
  9. 13. The scar of a large impact on Mercury
  10. 14. Closest planet to the Sun
  11. 17. Neptune's mass is mostly made of ____.
  12. 21. How many moons does Earth have?
  13. 22. Also named Biosphere 1
  14. 24. The researcher that named Uranus.
  15. 25. Hottest planet in our solar system