Chapter 13

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Across
  1. 5. parts made to be exactly the same so they could be interchanged
  2. 7. woven fabrics
  3. 8. group of workers who join together to protect their rights and interests
  4. 10. road that travelers must pay to use
Down
  1. 1. a system of signals representing the letters of the alphabet
  2. 2. a dramatic change in the use of machines to produce goods
  3. 3. a ship that carries passengers and freight at fixed dates
  4. 4. a sailing vessel especially designed for speed
  5. 6. a tax to help pay the cost of building and repairing roads
  6. 9. membership fees required to belong to a union