root words terr, naut

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Across
  1. 6. something not found on Earth
  2. 8. somebody who studies earth
  3. 9. a person that goes to space
Down
  1. 1. to direct a ship
  2. 2. being surrounded by land
  3. 3. relating to a ship
  4. 4. the science of Earth
  5. 5. underneath Earth
  6. 7. land owned by somebody
  7. 8. a stone with crystals inside