Crossword

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