Solar System Crossword Puzzle

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Across
  1. 4. known as the icy planet
  2. 6. closest planet to Sun
  3. 8. planet that spins on its side
  4. 10. Earth's twin
Down
  1. 1. orbits around Earth
  2. 2. all planets revolve around it
  3. 3. has 7 rings
  4. 5. planet humans live on
  5. 6. known as the Red Planet
  6. 7. largest planet in solar system
  7. 9. is a dwarf planet