| A | B |
| region | area where places share similar characteristics such as landforms |
| landform | natural feature on Earth's surface |
| mountain | very high landform |
| plain | large area of mostly flat land covered with grass |
| desert | area that gets very little rain |
| canyon | deep valley with steep rocky walls |
| plateau | large flat raised area of land |
| boundary | line or natural feature that divides one area from another |