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8ES Chp 3: Maps

8th Grade Earth Science Chapter 3: Maps and Mapping Leach

TermDefinition
map A model of an area of the earth's surface.
map scale The ratio of a distance represented on a map to the same distance on the earth's surface; indicated with two numbers separated by a colon.
cartographer A person that makes maps.
cardinal direction One of the four key geographic directions: north, south, east, or west
Equator The great circle of latitude perpendicular to the earth's rotational axis; also is 0 degrees latitude and divides the earth into the Northern and Southern Hemispheres.
parallel A line of latitude; any line on a map or globe parallel to the Equator including the Equator itself as well as all the small circles that are perpendicular to the axis of the earth.
meridian A line of longitude; any line on a map perpendicular to parallels that indicates the direction of true north.
geographic coordinates The latitude and longitude used to locate a point on the earth's surface.
map projection The transfer of geographic information from a 3D globe onto the 2D surface of a map; which always distort geographic information.
contour line Any line on a relief map that connects points of equal elevation above or below sea level.
thematic map A map that displays certain kinds of related information to produce a unified theme.
geographic information system A system that uses digital map data, programs, hardware, and data storage systems to create and display information on maps; particularly useful in that users can add or remove layers of data to show geographic relationships
latitude Also known as parallels; any line on a map or globe parallel to the Equator.
longitude Also known as meridians; any line on a map, perpendicular to parallels that indicates the direction of true north.
Prime Meridian The semicircle on the globe that connects the North and South Poles and passes through Greenwich, England.
Created by: CoachLeach
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