Engineering. Units 16, 17 & 18

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Across
  1. 3. power produced by a wound up spring p.18
  2. 7. to change direction (of light) p.20
  3. 8. smart p.18
  4. 9. means hidden p.20
  5. 10. a device you use to listen to music p.20
  6. 12. always done in the same way p.19
  7. 16. a part of a machine that can sense heat, light etc.p.19
  8. 17. respond to a change p.19
  9. 18. a word which was introduced by K.Capek p.19
Down
  1. 1. ... bomb, materials p.19
  2. 2. a device p.20
  3. 4. nice, adorable p.19
  4. 5. ... X,Y,Z; new round (of people, technologies etc.) p.18
  5. 6. ...-friendly p.18
  6. 8. to change (for example, energy) p.18
  7. 9. power from the sun p.18
  8. 11. ... cups p.20
  9. 13. T.Baylis wanted to share information about this illness p.18
  10. 14. a triangular blockof glass p.20
  11. 15. to take part, to play in films p.19