1.2 and 1.3

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Across
  1. 4. A machine that sends messages long distances by sending electrical pulses in code over electrical wires.
  2. 6. Inventor of the steamboat
  3. 8. Parts of a mechanism that can be substituted one for another.
  4. 11. A boat outfitted with steam boiler engines to power the paddle wheels that propel it forward.
  5. 12. Inventor of the telegraph
Down
  1. 1. Inventor of the steel plow
  2. 2. Moved mail, goods, and settlers between the East and the Northwest Territory.
  3. 3. Inventor of interchangeable parts.
  4. 5. Inventor of the reaper
  5. 7. Transported coal from western Virginia to Pennsylvania
  6. 9. It was used to ship grain from the northwest territory to the east cheaply and quickly
  7. 10. A machine that cuts stalks of wheat or oats.