Planets

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Across
  1. 3. Name of one of Mars moons (starts with a P)
  2. 6. Planet with longest period of rotation
  3. 7. Only planet capable of sustaining life
  4. 9. The biggest planet
  5. 10. Earth's twin
Down
  1. 1. The Red Planet
  2. 2. How many moons does Mars have
  3. 3. Used to be a planet, now a dwarf planet
  4. 4. Closest planet to the sun
  5. 5. Looks like it's rolling
  6. 8. What gives Neptune and Uranus their bluish colour
  7. 11. Does a planet produce their own light