| A | B |
| Urban areas | Cities |
| Rural areas | Countryside |
| Entrepreneur | Person who starts a business |
| Monopoly | Control of an industry by one company |
| Bessemer process | Process of making steel from iron |
| Andrew Carnegie | Founded first steel company |
| Alexander Graham Bell | Made first telephone call |
| Industrial Revolution | Lead to crowding of cities |
| Thomas Edison | Developed electrical system for entire city |
| Ellis Island | Immigrants passed through this island |
| Pogrom | Organized massacre of a group of people |
| Jane Addams | Started settlement houses for poor immigrants |
| Mechanization | Machines performing work that men once performed |
| Strike | People refusing to work |
| Liliuokani | Queen in Hawaii |
| 50th state of the US | Hawaii |
| Seward's IceBox | Alaska, 49th state of the US |
| Metal found in Alaska | Gold |
| Current importatnt resource in Alaska | Oil |
| Yellow Journalism | Writing news to attract attention and stir up strong emotions |
| Rough Riders | Theodore Roosevelts regiment |
| Spanish-American War | Expanded America, adding Philppines, Guam, and Puerto Rico |
| Labor union | Groups of workers organized to get fair treatment from companies |
| Carnegie Company and other big businesses | Opposed labor unions |