Solar System

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Across
  1. 3. The hottest planet
  2. 7. The planet cold and its sideways
  3. 8. The planet with the ring
  4. 9. The red planet
Down
  1. 1. The last planet in our solar system
  2. 2. The smallest planet
  3. 4. 4,500,000 years old
  4. 5. Our planet
  5. 6. The biggest planet