| A | B |
|---|
| trust | a group that controls an industry |
| Progressives | reformers who wanted to stop unfair practices |
| muckraker | a writer who uncovered terrible conditions |
| Blue Laws | laws designed to solve social problems |
| conservation | protecting something from being destroyed |
| John Muir | a naturalist and conservationist |
| Upton Sinclair | Wrote "The Jungle" about the meat industry |
| Sherman Antitrust Act | law that forced trusts to break up |
| Theodore Roosevelt | became president after McKinley was assassinated |
| problems from industry | dangerous factories, air and water pollution |
| Yellowstone National Park | first national park |
| Yosemite National Park | established by John Muir |
