Vocabulary C18 Sec1,2,3

4. purify; make free from impurities.
6. made cars available to many; introduced the assembly line.
10. created the first airplane.
13. someone who sets up new businesses to make profit.
15. creator of the telephone.
16. a document giving someone the sole right to make and sell an invention/product
17. businesses owned by many investors.
18. the creator of the steel monopoly named Carnegie Steel Company, used to be poor, and gave money.
20. to increase in speed.
22. a center offering help to the urban poor.
24. to get rid of.
25. place where people receive medical treatment, often for free or for a small fee.

1. “invention factory” at Menlo Park NJ; made light bulb and hundreds more inventions
2. Jewish Immigrant that formed the American Federation of Labor; a leading union.
3. the rapid growth of city populations.
5. the system in which privately owned businesses compete freely.
7. leader of an oil empire, formed the Standard Oil Trust.
8. to change; to make different
9. to give good reason for an action.
11. a group of corporations run by a board of directors.
12. unions negotiate with management for workers as a group.
14. a reformer who worked hard for the poor city dwellers; established the Hull House, a settlement house in Chicago.
19. a manufacturing method in which a product is put together as it moves along a belt.
21. a company that controls most or all businesses in a particular industry.
23. buildings divided into many tiny apartments.