| A | B |
|---|
| crops | plants grown by farmers - examples: corn, potatoes, and cotton |
| Louisiana Purchase | the sale of a large piece of land west of the Mississippi River |
| doubled | twice as large as before |
| Napoleon Bonaparte | French ruler who sold Louisiana to the United States |
| Meriwether Lewis | was asked by President Jefferson to explore Louisiana |
| William Clark | was asked by Lewis to explore Louisiana with him |
| York | an African American slave who helped Lewis and Clark explore the west |
| search | explore |
| Rocky Mountains | the chief mountain system in North America, extending from central New Mexico to N Alaska |
| Sacagawea | A Shoshone Indian women who helped Lewis and Clark travel to the Pacific Ocean |
