Aliens + Atlantis

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Across
  1. 3. a part of a place, or of some land.​
  2. 4. to fall below the surface
  3. 5. to put it together piece by piece
  4. 8. Someone who does not want to share.
  5. 10. to say what happened in detail.
  6. 12. moving or changing position.
  7. 15. Something that comes from nature.
  8. 16. hard or firm.
  9. 17. To have possession of something.
Down
  1. 1. when something happens after a long time
  2. 2. to hit forcefully and cause damage.
  3. 4. something with many pieces put together
  4. 6. the reason you do something.
  5. 7. something that you want few people to know about.
  6. 9. we cannot find it.
  7. 11. trying to find facts about something.
  8. 13. Things that have similar characteristics
  9. 14. hard to understand or explain.
  10. 18. a part of something