| A | B |
| sod | grass, roots, and dirt that form the ground's top layer |
| interstate highway system | set of wide, fast, interconnecting highways to link the states |
| fur trade | the exchange of animal skins for other goods, such as cloth, guns, & knives |
| steamboat | boat powered by a steam engine |
| drought | times of little rain |
| transcontinental railroad | trains that cross the entire country |
| mission | settlement set up by a religious group to teach its religion and help the people of the area |
| Dust Bowl | area of the Midwest and Southwest that suffered the most in the drought of the 1930's |
| hub | center of activity |
| trading post | type of store st which goods are traded |
| mound | pile of earth or stones |
| John Deere | important to Midwestern farmers because he was a blacksmith who invented the steel plow |
| Cahokia | once a trading center in Illinois |
| Northern Great Lakes region | home to the Ojibwa today |
| Jacques Marquette | A French priest & explorer who explored waterways of the Midewest in 1673 |
| Louis Jolliet | A French Canadian who explored the Midwest with Marquette |
| Jean Baptiste Point Du Sable | Established a successful trading post along Lake Michigan in a region known as "Chicago" |
| St. Louis, Missouri | home of the Gateway Arch to the Midwest |
| William Clark & Meriwether Louis | sent by President Thomas Jefferson to explore the land along the Missouri River to its source |
| Mark Twain (Samuel Clemens) | one of America's most popular writers worked on the Miss. River and described life along the river |