| Term | Definition |
|---|
| equator | Imaginary line that lies at 0 latitude dividing the earth into a northern hemisphere and sourthern hemispheres |
| conic projection | Map that is highly accurate for small areas, made by projecting points and lines from a globe onto a cone. |
| International Date Line | The 180 meridian, which serves as the transiton line for calender days. |
| latitude | Distance in degrees north and south of the equator. |
| map scale | Ratio between the distance shown on a map and the actual distance on Earth's surface. |
| Prime Meridian | imaginary line representing 0 longitude, running from the north pole, through Greenwich, England, to the south pole |
| countour Line | a line on a topographic map that connects points of equal elevation. |
| Global Positioning System | satellite-based navigation system that permits a user to pinpoint his or her exact location on earth |
| mercator map | map used to see large areas, latitude and longitude lines are straight |
| graphic scale | in the form of a line graph or bar graph |
| hemisphere | half of the earth |
| polaris | the north star |
| benchmark | exact elevation surveyed on the map |
| hachure lines | mark a depression point into a hole |
| slope | the change in height over the change in distance "rise over run" |
| topographic map | reflects earth's surface in two dimensions, shows change in elevation |
| v-shaped contour lines | mark a river, v points upstream |
| longitude | measure distance east and west of the prime meridian |
Combine with other sets
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