The Solar System

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Across
  1. 2. What do the planets revolve around?
  2. 4. What is the planet second from the sun?
  3. 7. What dwarf-planet was once considered a planet?
  4. 8. What planet is eighth from the sun?
Down
  1. 1. What planet is fourth from the sun?
  2. 2. What planet is sixth from the sun?
  3. 3. What planet is fifth from the sun?
  4. 5. What planet do we live on?
  5. 6. What planet is seventh from the sun?