Products of the 2nd Industrial Revolution

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Across
  1. 5. interchangeable parts __ assembly and repair in factories.
  2. 7. This came to dominate as the source of industrial power
  3. 9. Factories required large amounts of __ and power-driven machines to mass-produce goods.
  4. 11. The invention of the lightbulb made the pace of life and production quicken; factories did this after dark.
  5. 14. Thomas Edison's invention of the lightbulb illuminated cities, called the "__ lamp."
  6. 15. To the inventor's dismay, dynamite was used in warfare, but also in __.
Down
  1. 1. The United States built the transcontinental railroad, transporting people from the Atlantic to the __.
  2. 2. Steel is harder, lighter, and more __ than iron ore
  3. 3. railroads __ inland cities and seaports, mining regions and industrial centers.
  4. 4. Advancements in chemistry led to the invention of soaps, perfumes, and __ that immensely helped people feel better.
  5. 6. Steel is purified __ (2 words, no space)
  6. 8. chemical fertilizers increased the production of __
  7. 10. This purified version of iron ore became the material to build bridges,__, and tools.
  8. 12. This was invented in 1800
  9. 13. the assembly line not only made production cheaper, but also __, lowering the price of goods.