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Ch1 L1-4
| Question | Answer |
|---|---|
| topography | the shape of the land determined by elevation, relief, and landforms |
| elevation | height above sea level |
| relief | the difference in elevation between the highest and lowest parts of an area |
| landform | a feature of a topography formed by the process that shape Earth's surface |
| plain | a landform made of flat or gently rolling land |
| mountain | a landform with high elevation and high relif |
| mountain range | a group of mountain that are closely related in shape,structure,area and age |
| plateau | a large landform that has high elevation and a more or less level surface |
| landform region | a large area of land where the topography is made up of mainly one type of landform |
| globe | a sphere that represents Earth's entire surface |
| map | a flat model of all or part of Earth's surface as seen from above |
| map projection | a framework of lines that helps transfer points on Earth's surface onto a flat map |
| symbol | On a map, a picture used by mapmakers to stand for features on Earth's surface |
| key | a list of the symbol used on a map and their meanings |
| scale | used to relate distance on a map or globe to distance on Earth's surface |
| degree | a unit used to measure distances around a circle. one degree equals 1/360 of a full circle |
| equator | an imaginary line that circles Earth halfway between the north and south poles |
| hemisphere | one half of the sphere that makes up Earth's surface |
| prime meridian | the line that makes a half circle from the north pole to the south pole and that passes through Greenwich, England |
| latitude | the distance in degrees north or south of the equator |
| longitude | the distance in degrees east or west of the prime meridian |
| surveying | the process of gathering data for a map by using instruments and the principals of geometry to determine distance and elevation |
| digitizing | converting info to number for use by a computer |
| pixel | one bit of a digitized image, often appearing as a small square or dot |
| areal photograph | a photograph taken by cameras mounted by airplanes |
| satellite image | a picture of the land surface based on computer data collected from satelites |
| Global Positioning System | a navigation system that uses satellite signals to locate a radio receiver on Earth's surface |
| Geographic Information System | a system of computer hardware and software used to produce interactive maps |
| topographic map | a map that shows the surface features of an area |
| contour line | a line on a topographic map that connects points of equal elevation |
| contour interval | the difference in elevation from one contour line to the next |
| index contour | on a topographic map, a heavier contour line that is labeled with elevation of that contour line |
Created by:
gbarazsu003