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Topography
Topographical terms
| Hint | Answer |
|---|---|
| topographic map | a map that shows the surface features of the earth, both natural (rivers/hills) and man-made (buildings/roads) |
| topography | surface features of the earth |
| elevation | height above sea level measured at mean sea level |
| mean sea level | point midway between the highest and lowest tide levels of the ocean. The elevation at ___________ is zero. Other elevations are measured above and below this. |
| contour lines | lines on a topographic map that show elevation. one __________ connects all points on the map that have the same elevation. |
| contour interval | the space between two contour lines. This space shows the difference in elevation between one line and the next. |
| relief | the difference in elevation between the highest and lowest points of the area being mapped. |
| USGS | United States Geographical Survey - Branch of the U.S. federal government responsible for making topographical maps for the entire United States |
| legend | a list of symbols describing items found on a map |
| direction | latitude and longitude is used to find this on a topological map. |
| index contours | the dark lines on a topographical map; usually every fifth contour line |
| depression contours | contour lines that form closed loops with straight lines drawn along the inside of the loop pointing toward the center. These loops indicate a sunken area such as a crater or low place. |
| steep slopes are indicated by... | contour lines that are very close together |
| contour lines that are far apart | relatively level land is indicated by these... |
| V-shaped | a valley is indicated by contour lines that are this... |
| Rivers | these always flow from areas of higher elevation to areas of lower elevation. |
| On a USGS topographical map, 1-inch equals.... | 2,000 ft. |