Lesson 4: Lines on the globe
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Transcript of Lesson 4: Lines on the globe
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LINES ON THE GLOBE
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Special Lines on the Globe
MERIDIANS PARALLELS
Prime Meridian
InternationalDate Line
Arctic Circle
Tropic of Cancer
Equator
Tropic of Capricorn
Antarctic Circle
OVERVIEW OF THE TOPIC
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BASIC UNDERSTANDINGS
Latitude – distance between two parallels measured north or south of the Equator.
Longitude– distance between two meridians measured east or west of the Prime Meridian.
Parallels– are imaginary lines running in an east-west direction around the Earth.Meridians – are imaginary lines that meet at the poles.
©Jamaica Olazo
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Lines refer to
“parallels and meridians”.
Distancesrefer to “latitudes and longitudes”.
THINGSyou need to remember
©Jamaica Olazo
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Latitude |Parallels Longitude | Meridians
Horizontal Lines Vertical Lines
©Jamaica Olazo
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Meridians and Parallels – are imaginary lines that help in establishing locations of places on Earth.
©Jamaica Olazo
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PARALLELS AND MERIDIANS
*Imaginary
lines
*Circles help in
determining
locations
*Intersecting
*Horizontal
Lines
*Only one
Great Circle
*Run in an
east-west
direction
*Vertical Lines
*All Great
Circles
*Run from north
To south
*Determine
time zones
©Jamaica Olazo
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PARALLELS OF LATITUDE
Equator – parallel located
at the center and whose
length is equal to the
circumference of the earth.
Great Circle – largest
parallel, the only Great
Circle among the parallels.
©Jamaica Olazo
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Arctic Circle – located at 66 ½ o north of the equator. It marks the northernmost limit of the Sun’s oblique or slanting rays.
Tropic of Cancer – lies 23 ½ o
north of the equator. Marks the northernmost limit of the Sun’s vertical rays.
SPECIALPARALLELS
©Jamaica Olazo
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Equator – designated Oo
latitude, located at the center of the Earth and divides the Earth into the Northern and Southern Hemispheres.
The reference point in measuring distances north and south moving toward the poles.
SPECIALPARALLELS
©Jamaica Olazo
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Tropic of Capricorn - lies 23 ½ o south of the equator. Marks the southernmost limit of the Sun’s vertical rays.
Antarctic Circle - located at 66 ½ o
south of the equator. It marks the southernmost limit of the Sun’s oblique or slanting rays.
SPECIALPARALLELS
©Jamaica Olazo
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Play Video
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LATITUDE AND LONGITUDE
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MERIDIANSOF LONGITUDES
Two meridians opposite each other form a Great Circle.
Meridians are arcs of Great Circles.
Meridians – line running vertically about the Earth.
©Jamaica Olazo
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Special Meridians
1. Prime Meridian – line designated Oo
longitude and which passes through Greenwich,
England. Also called Greenwich Meridian.
It is the reference point in measuring distances
eastward or westward.
©Jamaica Olazo
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PRIME MERIDIAN
©Jamaica Olazo
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Special Meridians
2. International Date Line (IDL) –directly opposite of the prime meridian in a line
designated 18Oo longitude.
It is not a straight line that deviates eastward and westward upon crossing certain places to allow land areas and island groups to have the same calendar day
©Jamaica Olazo
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INTERNATIONAL DATE LINE
Red line marks the International Date Line
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Play Video
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HOW INTERNATIONAL DATE LINE WORKS?
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Special MeridiansDIFFERENCE BETWEEN THE TWO
©Jamaica Olazo
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Play Video
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THANK YOU!!!