| A | B |
| France | country we purchased this territory from |
| Lewis & Clark | explored this territory to help create a path west |
| Jefferson | bought this land even though it wasn't allowed by the Constitution |
| 1803 | Year we purchased this territory |
| 1804 | Year Lewis & Clark left on their journey |
| Doubled the country in size | What was one effect of this purchase? |
| Great Plains | term we give for Louisiana Territory today |
| Louisiana | called this because this state is most important |
| Mississippi River | this river goes to the Gulf of Mexico at the state of Louisiana |
| Missouri River | this is the main route of Lewis & Clark and main river of this territory |
| Nebraska | one state in this territory |
| Eleven | number of states or parts of states in this territory |
| Louisiana Territory | first territory added during Manifest Destiny |