| A | B |
| Steamboat | Made it easier to transport goods through canals and rivers |
| Telegraph | Allowed people to communicate across vast distances more quickly |
| Textile Mills | Factories powered by rivers that produced clothing more quickly |
| Mechanical Reaper | Tool that made harvesting grain and wheat more efficient |
| Cotton Gin | Led to an increase in slavery because it made cotton production more efficient |
| Interchangeable Parts | Process started by Eli Whitney |
| Pioneers | Americans who moved west to start fresh lives along the Oregon Trail |
| Industrialization | The process of moving from cottage industry to mass production |
| Urbanization | Population shifting from rural areas to cities |
| Lowell Girls | First group of women that worked independently from their families to make a living |
| Free Enterprise | Encouraged private ownership of business & property, competition, and profit |
| Texas Annexation | 1845 Texas becomes a state in the US |
| Mexican Cession | Land lost by Mexico to the US after the US-Mexican War |
| Sierra Nevada Mountains | Mountain range on the west coast of California |
| Appalachian Mountains | First border of the Original 13 Colonies |