The Solar System

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Across
  1. 1. The planet known at "The Ice Giant"
  2. 4. The farthest planet from the sun
  3. 7. The only known planet in our solar system to have life
  4. 8. The largest planet in our solar system
  5. 9. The planet with the nickname "The Red Planet"
Down
  1. 2. The least dense planet in our solar system
  2. 3. The hottest planet in our solar system
  3. 5. How many planets are in our solar system?
  4. 6. The closest planet to the sun