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an imaginary circle around the middle of the earth, halfway between the North Pole and the South Pole


One half of the Earth, north or south of the equator or west or east of the Prime Meridian.


an imaginary line around the Earth parallel to the equator. Measured in degrees


distance in degrees east or west of the Prime Meridian. Runs from pole to pole

Prime Meridian

An imaginary line passing through the Royal Observatory in Greenwich, England, which marks the 0° line of longitude.

International Date line

The line of longitude that marks where each new day begins, centered on the 180th meridian. Opposite prime Meridian


To break apart, to disperse

Tropic of Cancer

23.3 N, defines end of tropics north of the equator

Tropic of Capricorn

an imaginary line of latitude located at 23.3 S. It marks the southern boundary of the earth's tropical zone.

Compass Rose

Pattern drawn on maps to designate directions

Fleur de lis

Symbol drawn on maps to designate North. "Flower of life"

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