Grids and zones

Geography- the study of where things are found on Earth's surface and the reasons for the locations
Common questions:

  1. where are people and activities found on the Earth?
  2. why are they found there?
Maps- a two dimensional or flat-scale model of the Earth's surface (or portion of it)

  • the art and science of map making is called cartography  
*Eratosthenes (195 BC)
2 purposes- reference to absolute and relative location
                   a communications tool to describe human activities and physical features
Absolute- position as expressed in degrees, minutes, minutes, and seconds of latitude and longitude
Relative- the regional position or situation of a place relative to the position of other places
Latitude- geographic coordinate that specifies the north/south position of a point on the Earth's surface
- measured by imaginary lines            

Arctic Circle: 66° 34' (66.57°) N
Tropic Of Cancer: 23° 26' (23.43°) N
Equator: (0° N/S)
Tropic Of Capricorn: 23° 26' (23.43°) S
Antarctic Circle: 66° 34' (66.57°) S     

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