Inner Planets

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Across
  1. 3. hottest planet
  2. 5. closest to the sun
  3. 7. small planets
  4. 9. rocky solid
Down
  1. 1. gases the surroundings of everything
  2. 2. going around and object several times
  3. 4. the only known planet with life
  4. 6. red sand
  5. 8. orbiting something but closer to the thing it is orbiting
  6. 10. bumpy ground