engineering towers

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Across
  1. 1. structure- a structure where the main elements support the load
  2. 4. engineer- a engineer that is civil
  3. 5. a supporting structure
  4. 7. i pushed together the wood using_______?
  5. 8. a structure built to support
  6. 10. a key made out of stone
  7. 11. rhymes with fan
Down
  1. 2. something built on something else
  2. 3. rhymes with march
  3. 6. pulling apart
  4. 9. rhymes with fuss