| A | B |
|---|
| Technology | using new ideas and tools to meet people's needs |
| sod | a thick layer of soil mixed with grass roots that was used to make homes |
| Laura Ingalls Wilder | she wrote Little House in the Big Woods |
| Windmills | Uses wind power to pump water |
| barbed wire | used to make fences |
| Appalachian | in 1790 only 6 out of 100 people lived west of these mountains |
| population | the amount of people in an area |
| railroad | improved transportation to the frontier |
| John Oliver | invented the steel plow |
| Fred | the first name of our friendly custodian |
