Across
- 5. to change significantly
- 8. a system of dots and dashes that represent the alphabet
- 9. designed by Cyrus McCormick, this invention greatly increased the amount of a crop that could be harvested.
- 11. a device that used electric signals to send messages
- 13. the first steamboat launched by Robert Fulton on the Hudson River
- 14. in 1863 construction began on a ___ to link the eastern and western United States
- 15. a new development or invention
Down
- 1. invented the sewing machine in 1846
- 2. this invention by John Deere allowed farmers to cut through the hard-packed prairie sod
- 3. this American inventor developed a system using dots and dashes to send messages of electrical wires
- 4. the first American steam-powered locomotive
- 6. the first message sent over the telegraph system
- 7. the new industrialization of America was mainly located in this geographical region
- 10. between 1800 and 1850 crews built these to connect rivers and lakes together
- 12. a ship with sleek hulls and tall sails that "clipped" time from long journeys