Crossword

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Across
  1. 2. an organization that protects workers' rights
  2. 4. household
  3. 8. uniform parts that can be easily made, installed and replaced
  4. 9. a type of cloth or woven fabric
  5. 10. turning raw material (iron ore) into pure metal
  6. 11. a machine that separates cotton from its seeds
  7. 12. cleanliness
  8. 13. clean, germ-free
Down
  1. 1. the time period from the late 1700s to the early 1800s marking the introduction of machinery and the growth of factories
  2. 3. a machine that harvests crops
  3. 5. a man-made river used for navigation and transporting water for crops and farming
  4. 6. an injected substance that prevents disease
  5. 7. the basic material from which a product is made