The puzzle of the Integrated Science

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Across
  1. 2. Word of chapter 4
  2. 5. Word of chapter 7
  3. 8. Word of chapter 9
  4. 10. Word of chapter 21
  5. 15. Word of chapter 25
  6. 16. Word of chapter 31
  7. 17. Word of chapter 11
  8. 19. Word of chapter 20
  9. 22. Word of chapter 5
  10. 23. Word of chapter 32
  11. 24. Word of chapter 3
  12. 25. Word of chapter 1
  13. 26. Word of chapter 15
  14. 27. Word of chapter 19
  15. 29. Word of chapter 30
  16. 30. Word of chapter 6
Down
  1. 1. Word of chapter 29
  2. 3. Word of chapter 24
  3. 4. Word of chapter 12
  4. 6. Word of chapter 8
  5. 7. Word of chapter 17
  6. 9. Word of chapter 22
  7. 11. industry Word of chapter 10
  8. 12. Word of chapter 16
  9. 13. Word of chapter 13
  10. 14. Word of chapter 14
  11. 18. Word of chapter 27
  12. 20. Word of chapter 23
  13. 21. Word of chapter 2
  14. 23. Word of chapter 28
  15. 28. Word of chapter 18
  16. 30. Word of chapter 26