Astronomy vocab

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Across
  1. 1. gotta breath
  2. 4. what we live on
  3. 6. blue planet
  4. 8. effect global warming
  5. 9. small rock
  6. 10. rocky layer
  7. 11. pea soup layer
  8. 12. middle
Down
  1. 2. north and south poles
  2. 3. pimple
  3. 5. thick atmosphere
  4. 7. inner four planets
  5. 11. rusty planet