## Chapter 2 - Mapping Earth's surface

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814065  on April 16, 2012

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# Chapter 2 - Mapping Earth's surface

 Topographythe shape of the land
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#### Definitions

Topography the shape of the land
Elevation the height above sea level of a point on earth's surface
Relief the difference in elevation between the highest and lowest parts of an area
Landform a feature of topography formed by the processes that shape Earth's surface
Plain a landform made up of nearly flat or gently rolling land with low relief
Mountain a landform with high elevation and high relief
Plateau a 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 mainly of one type of landform
Map a flat model of all or part of Earth's surface as seen from above
Scale relates distance on a map to a distance on Earth's surface
Globe a sphere that represents Earth's entire surface
Key/Lengend a list of all the symbols used on the map with an explanation of their meaning
Degree 1/360 of the distance around a circle
Equator an imaginary line that circles Earth halfway between the North and South poles
Hemisphere 1/2 of the sphere that makes up Earth's surface.
Prime Meridian another iaginary line that makes a half circle from the North Pole to the South Pole
Latitude the distance in degrees north or south of the equator
Longitude the distance in east or west of the prime meridian
Map Projection a framework of lines that helps in transferring points on Earth's three-dimensional surface onto a flat map.
Topographic Map a map that shows the surface features of an area
Contour line a line on a topographic map, a line 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 in round units

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