Grids

Today in class we learned about grids. Geography is the study of where things are found on Earth's surface and the reason for the locations. Geographers ask two questions: Where are people and activities found on Earth? and Why are they found there? The answer is a map. A map is a two-dimensional or flat-scale model of the Earth's surface. The art and science of map making is called cartography. Maps serve two purposes. A reference tool to identify an objects absolute and relative location. Also a communication tool to convey the distribution of human activities or physical features.


  • Absolute location: position as expressed in degrees, minutes, and seconds of latitude (north or south of the equator) and longitude (east or west of the Prime Meridian)
  • Relative location: the regional position or situation of a place relative to the position of other places
  • Latitude: a geographic coordinate that specifies the north-south position of a point on the earth's surface
  • Longitude: is measured by imaginary lines running parallel to the equator, and used to measure degrees north to south

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