The Solar System

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Across
  1. 3. the fastest orbiter
  2. 5. planted that appears tipped onto its side; 1 of the 'ice giants'
  3. 7. the planet 'demoted' from the status of planet to 'dwarf planet'
  4. 8. the planet with most moons
Down
  1. 1. where would you find Olympus Monds?
  2. 2. enus the hottest planet
  3. 4. the only known 'life sustaining' planet
  4. 6. the coldest planet