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The imaginary lines assigned to the Earth's surface form a grid system that can locate a specific point or set of points.

Latitude lines circle the Earth east and west and indicate distance north or south of the equator. 90° N is the North Pole and 90° S is the South Pole.

  • Arctic Circle : approximately 66.5° N
  • Tropic of Cancer : approximately 23.5° N
  • Equator : 0° latitude
  • Tropic of Capricorn : approximately 23.5° S
  • Antarctic Circle : approximately 66.5° S

Longitude lines run north and south, from the North Pole to the South Pole, and defined the distance from the Prime Meridian (Greenwich Meridian), either east or west.

  • Greenwich Meridian - arbitrarily assigned 0° longitude
  • International Date Line - ideally 180° east or west of Greenwich

A calendar day officially begins when the time reaches noon (of the preceding day) at Greenwich, as it is then midnight at the International Date Line. Only once each day is the entire world on the same calendat day. At any other time, crossing the Date Line moving west advances the date by a day, while crossing to the east sets the calendar date back a day.

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The horizontal lines are called the lines of what?

On the globe they are called lines of LATITUDE and are parallel to the equator.


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What are the imaginary lines on the globe and map?

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Are the parallel lines on a globe called longitude or latitude lines?

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What is another name for the lines that run across the globe east-west called besides latitude?

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What is the pattern of lines that circle the globe east-west and north-south called?

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The equator and all lines of longitude are called great circles because the represent the circumference of the earth. The other latitude lines along the globe are smaller then the actually circumference.


The horizontal lines on the globe are called?

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The lines that go from north to south on a globe are called?

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