| A | B |
|---|
| cartography | the science of map making |
| bench mark | mark with bronze markers |
| topographic map | map that shows the shape of the land using fine lines drawn in patters to indicate features such as mts. valleys and rivers |
| geologic map | shows different layers and type of rock |
| hydrologic map | shows where surface and underground water is |
| USGS | United States geological survey |
| latitude | distance from the earths equator measured by parallel imaginary line that runs east to west |
| longitude | distance measures by a vertical imaginary line that runs around the earth through the north and south poles |
| parallels | another name for lattitude lines |
| meridians | measured in degrees (east to west) |
| map scale | relationship between a sistance on a map and distance on the earth |
| topography | contour or shape of the lands surface |
| contour lines | lines on a map that connect points of equal height above sea level |
| contour intervals | two consecutive contour lines |
| index contours | marked with elevation |
| compass rose | a directional instrument that indicates n, s, e, and west |
| equator | an imaginary line that divides the earth |
| prime meridian | line of longitude that passes through Greenwich, England |
| map key or legend | describes how the symbols are used on a map |
