Inventions of the 1700's

123456789101112
Across
  1. 3. Military Submarine
  2. 6. This Benjamin Franklin invention heated homes
  3. 7. Eli Whitney invented this at the home of Mrs. Marshall's Great gr gr gr gr gr Grandmother
  4. 8. Document that says a person invented something
  5. 9. He invented the Turtle Submarine
  6. 10. Invented in Pennsylvania to help colonists move west
  7. 12. These lenses have two different strengths
Down
  1. 1. Wheels with grooves cut into their edges that are used to move objects
  2. 2. This factory used a waterwheel to move pulles and belts to process grain
  3. 4. Invented the Steam Engine
  4. 5. Metal pole that attracts lightning
  5. 11. Thomas Jefferson invented this to send secret messages