| A | B |
|---|
| geography | study of the earth's surface |
| elevation | height above sea level |
| landform | a natural feature of the earth's surface. |
| Topographic map | A map that shows the surface features of an area. It takes a 3-dimensional object and make it 2-dimensional. |
| Contour line | A line on a topographic map that connects points of equal elevation |
| Index contour | On a topographic map, a heavier contour line that is labeled with elevation of that contour line |
| Contour interval | the difference in elevation from one contour line to the next |
| Hachure lines | contour lines marked with little "teeth" that represent a depression or basin (like a crater or volcano) |
| terrain | An area of land; a region |
