21st Century Engineering

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Across
  1. 3. changing waste products into a usable form(9)
  2. 4. engineering of functional systems at atom or molecular scale(8)
  3. 8. energy form obtained from non-exhaustible resource(11)
  4. 9. bonnet material for boy-racers(11)
Down
  1. 1. neede for deep space travel(9,9)
  2. 2. combines electronics, computing and electrical, control and mechanical engineering(12)
  3. 5. clean form of nuclear power not yet commercialised(6)
  4. 6. modifying life forms(8)
  5. 7. gathering, storing, processing and communicating data(11)
  6. 10. no coffee or toilet break for these workers(6)