| A | B |
|---|
| model | a representation of an object or process |
| boundary | the limit or border of an area or region |
| structure | something built by people |
| map | drawing of an area |
| cartographer | a person who makes maps |
| grid | network of vertical & horizontal lines that form squares |
| symbol | color, shape, or texture used to represent something on a map |
| key | explanation of symbols used on a map |
| drainage basin | system of rivers & streams that drains an area |
| erosion | wears away earth material by water, wind, or ice |
| landform | shape or feature of the earth's surface |
| canyon | v-shaped valley eroded by a river or stream |
| delta | fan-shaped (triangular) deposit of earth's materials at a mouth of a stream |
| plateau | large, nearly level area that has been lifted above the surrounding area |
