Life in the North

4. Working conditions grew _____ over time as the factory system developed
6. This changed the way of working in the North
7. Industrialization took place in _____ phases
8. Samuel Morse, an American inventor, developed a system for sending messages instantly along __________ wires
10. A new development or invention

1. Morse code was a system that uses arrangements of ____ ___ _____ to represent the alphabet
2. A serious problem in factories
3. Peter Cooper designed and built the first American steam-powered locomotive called the ___ _____
5. Railroad tracks formed a network that ______ the Midwest and the East
6. Between 1840 and 1860, the miles of railroad __________ by more than ten times
9. To change significantly