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8th Topographic Maps
| Question | Answer |
|---|---|
| elevation | distance above sea level |
| topographic map | two-dimensional map of the Earth's surface that uses contour lines to show the shape and elevation of the land |
| sea level | level of sea's surface (0 ft), used as a reference point to describe elevations of other land features |
| contour line | A line connecting points of equal elevation |
| contour interval | the vertical distance or difference in elevation between each contour line on a map. |
| index contour | a thick, dark contour line on a topographic map, usually every 5th line |
| depression | a low-lying area surrounded by higher ground, represented by closed contour lines with small tick marks |
| peak | highest point on a mountain, marked with an X |
| river flow direction | determined by looking at the contour lines, which bend to form a "V" shape |
| topography | the arrangement of the natural and artificial physical features of an area. |