Crossword

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