| A | B |
|---|
| storms with tall funnels of whirling wind | tornadoes |
| something built to remind people of the past | monument |
| an entrance | gateway |
| a storm that drops pieces of ice | hailstorm |
| water beneath the Earth's surface | groundwater |
| a wind-powered machine,with blades set in the shape of a wheel, that are used to drive pumps | windmill |
| a buffalo | bison |
| written agreements | treaties |
| the outside cover of a grain of wheat | chaff |
| huge machines that cut and thresh wheat | combines |
| a part of a state | county |
| to separate the wheat from the chaff | thresh |
| the place known as the "Gateway to the West" | St. Louis, Missouri |
| This place was named ____ because they were difficult to cross and impossible to farm | Badlands |
| The two largest rivers that cross the Plains | Mississippi and Missouri |
| The area of the Plains states with the highest elevation | Black Hills |
| The Plains area that receives the most rain | Central Plains |
| the Sioux Indian Chief who fought at Little Bighorn | Sitting Bull |
| an army general who fought the Sioux at the Little Bighorn | George Custer |
| The Sioux Indians fought at ____ because the United States had broken a treaty with them | Little Bighorn |
| a famous hunter hired by the railroad | Buffalo Bill |
| the main reason the buffalo disappeared is that the ______ companies hired hunters to kill them | railroad |
