MERIDIANS AND PARALLELS
This concept map about the geographic grid explains how to locate a point on Earth. The geographic grid is made of imaginary lines: parallels and meridians. Parallels are horizontal lines parallel to the Equator and become smaller toward the poles. Meridians are vertical lines that pass through the poles and are numbered from the Greenwich meridian. From these lines derive the geographic coordinates: latitude and longitude. Latitude measures the angular distance from the Equator toward the North or South, while longitude measures the distance from the Greenwich meridian toward the East or West. This system allows us to determine the exact position on Earth.
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I am a Professional Educator, currently working for the Social Services of Olgiate Comasco (Como) through the 
