Solar system

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Across
  1. 5. mercury Venus earth mars
  2. 6. earth’s twin
  3. 8. closest planet to the sun
  4. 9. what separates the inner and outer planets
Down
  1. 1. Jupiter Saturn Uranus Neptune
  2. 2. what separates the outer and dwarf planets
  3. 3. What all planets orbit
  4. 4. a planet with no surface
  5. 7. the third planet from the sun
  6. 8. the fourth planet from the sun