engineering

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Across
  1. 4. public supply pipe for water
  2. 7. 1/R-value
  3. 8. repeated use of designs
  4. 12. force in a rotational motion
  5. 14. 2x6 for roofs
  6. 15. Draws attention to an area
Down
  1. 1. Less is more
  2. 2. animal or vegetable matter
  3. 3. a device that uses water
  4. 5. Lightness or darkness of an object
  5. 6. light weight wall for design
  6. 9. Q'=AU▲T
  7. 10. water not absorbed by the ground
  8. 11. precast masonry units
  9. 13. type of line that shows dignity, strength, and stability