Sts

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Across
  1. 3. civilization
  2. 8. peninsula
  3. 9. massive continent
  4. 12. Metal
  5. 14. language
  6. 17. father
  7. 18. Scientist
  8. 21. guidelines
  9. 22. system
  10. 25. Scientist
  11. 26. to know
  12. 28. derived
Down
  1. 1. Psy
  2. 2. Body of knowledge
  3. 4. largest
  4. 5. Country
  5. 6. plateau
  6. 7. bone tools
  7. 10. people
  8. 11. ENLIGHTENMENT
  9. 12. bent
  10. 13. Aztec civilization
  11. 15. boat
  12. 16. island
  13. 19. base
  14. 20. suspension
  15. 23. sigma
  16. 24. water system
  17. 26. 12months
  18. 27. currency