SS Unit 2 Lesson 5 Flashcards
Joseph Henry invented the ___________ in 1830
telegraph
In 1843 ______________ lines were put up and _________ could travel with lightning speed
telegraph news
Elisha Otis invented the first safe ____________
elevator
An assembly line is a line of ___________ and __________ all working together to make ___________
workers and machines final product
A skyscraper makes it possible for more people to…….
work and live in big cities
_____________________________ was developed in 1869 to improve transportation across the continent
transcontinental railroad
manufacture means to make something from ____________
machines
What did Henry Ford do?
Made cars with an assembly line
____________________ was a big improvement over the harsh wagon trails
transcontinental railroad
