Engineering Crosswords

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Across
  1. 3. make sure planes work
  2. 7. complex networks
  3. 9. deals with physical and life sciences
  4. 10. Develop organisms
  5. 12. roads and stuff
  6. 13. flight and space
  7. 16. design safety systems
  8. 17. design lighting effects
  9. 19. invent
Down
  1. 1. fix problems
  2. 2. materials around pipes and in walls
  3. 4. fac tor y work
  4. 5. develop cages for endangered species
  5. 6. chemicals
  6. 8. develop and test software
  7. 11. radiation and energy
  8. 14. electric systems
  9. 15. work to understand petrolem
  10. 18. innovative designs and projects