Tower Building

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Across
  1. 4. the first sample or model of a design
  2. 7. structural frame based on triangles
  3. 8. long rigid piece of metal or wood
  4. 9. the city with a sinking landmark in Italy
  5. 10. an organ that needs to be used and challenged
  6. 11. found in Seattle, Oregon
  7. 12. judging if a design works or can it be improved
  8. 14. a tight cable used to provide strength
  9. 15. you might find Smokey the Bear here
  10. 16. something that happens that we learn from
  11. 17. a structure that is taller than it is wide
Down
  1. 1. different version of a design
  2. 2. persist in doing something difficult
  3. 3. a diagram of something cut off
  4. 5. when you think about or draw out a design
  5. 6. stretched or strained for tightness
  6. 12. a person trained in design and construction
  7. 13. a symbol of Paris, France