| A | B |
| Civil Service | All government jobs except for elected positions or those in the armed forces. |
| Tariff | A tax on foreign goods brought into the country. |
| Muckraker | A person who reported on corrupt politicians and other problems of the cities. |
| Conservation | The protection of natural resources. |
| Suffrage | The right to vote. |
| 19th Amendment | Granted women's suffrage or right to vote. |
| 18th Amendment | Prohibited the manufacture, distribution, and sale of alcohol |
| Eugenics | the study of improving the qualities of a human population by such means as discouraging reproduction by persons having genetic defects or encouraging reproduction by persons presumed to have inheritable desirable traits |
| Initiative | procedure by which a law can originate with the people rather than by the lawmakers |
| Recall | a procedure for removing a public official from office by a vote from the people |
| Red-Scare | General fear inthe spread of Communism across the United States before, during, and after WWI |
| Referendum | a procedure by which a proposed law is directly voted on by the people |
| 17th Amendment | Changed the selection process of U.S. Senators to a popular vote instead of appointment by state law-makers |
| 16th Amendment | Created the federal income tax |
| Social Darwinism | philosophy that unrestrained competition in business will lead to the survival of only the strongest businessmen |