Road to the Civil War/Civil War

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Across
  1. 4. American industrialist; he developed a steel plow to ease difficulty of turning thick soil on the Great Plains.
  2. 5. American engineer and inventor, he built the first commercially successful full-sized steamboat, the Clermont, which led to the development of commercial steamboat ferry services for goods and services.
Down
  1. 1. the rapid growth in the speed and convenience of transportation.
  2. 2. a machine perfected by Samuel F.B. Morse in 1832 that uses pulses of electric current to send messages across long distances through wires.
  3. 3. American artist and inventor, he applied scientists' discoveries of electricity and magnetism to develop the telegraph, which soon sent messages all across the country.