Grade 8: senior Phase Geography - The Globe
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Transcript of Grade 8: senior Phase Geography - The Globe
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GRADE 8: SENIOR PHASE GEOGRAPHY
the globe This presentation is repurposed from mmrb, dmallett, DavidSP1996, TurKana
Israfilli, mrcoyleteach
and webhostingguy.
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EARTH
Basic vocabulary
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Equator
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hemisphere
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Northern
hemisphere
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Southern
hemisphere
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meridian
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Polar circle
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Tropic
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Tropic of Cancer
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Tropic of Capricorn
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TIME
ZONES
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THE INTERNATIONAL DATE LINE
Fixed, arbitrary boundary on the
earth in the Pacific Ocean where the
calendar date advances
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Time zones
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RULES FOR CROSSING THE IDL
Travelling East: results in one day or 24
hours subtracted. The day is
“repeated” to the west of the line.
Travelling West: results in one day or
24 hours added to the eastern side.
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11am 1am 2am 3am 4am 5am 6am 7am 8am 9am 10am11am 1pm 2pm 3pm 4pm 5pm 6pm 7pm 8pm
9pm 10pm
Mid
nig
ht
NO
ON
TIME ZONES ON EARTH
Gre
en
wic
h M
eri
dia
n
ADD HOURS
SUBTRACT HOURS
15° 15° 15° 15° 15°15°15° 15° 15° 15°15°15°15°15°15°15°15°15°15°15°15°15°
Inte
rna
tio
na
l D
ate
Lin
e
15°15°
ADD HOURS
SUBTRACT HOURS
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DAY &NIGHT
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rotation axis
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As the Earth moves around the Sun, this axis stays
always pointing in the same direction.
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day and night
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LOOKING DOWN FROM THE NORTH
POLE:
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AS THE EARTH SPINS, PART OF THE EARTH IS FACING TOWARD THE SUN, AND PART IS FACING AWAY FROM THE SUN.
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THE PART OF THE EARTH FACING THE SUN HAS DAYTIME
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translation
movement
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equinoxes
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solstices
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http://ithacasciencezone.com/earthzone/lessons/07meteor/daylight.jpg
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seasons
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IN THE SPRING AND FALL
http://k12.ocs.ou.edu/teachers/reference/equinox.gif
EQUINOX
A day lasts 12 hours and a night
lasts 12 hours at all latitudes.
Sunlight strikes the earth most directly
at the equator.
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IN THE SUMMER AND WINTER
http://k12.ocs.ou.edu/teachers/reference/solstice.gif
SOLSTICEDuring the winter the Northern Hemisphere day lasts fewer
than 12 hours and the Southern Hemisphere day lasts
more than 12 hours.During the winter solstice, the North Pole has a 24-hour night and the South Pole has a 24-
hour day.Sunlight strikes the earth most
directly at the Tropic of Capricorn.
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IN THE SUMMER AND WINTER
http://k12.ocs.ou.edu/teachers/reference/solstice.gif
SOLSTICEDuring the summer solstice the Northern Hemisphere day lasts
more than 12 hours and the Southern Hemisphere day lasts
fewer than 12 hours.During the summer, the North
Pole has a 24-hour day and the South Pole has a 24-hour night.
Sunlight strikes the earth most directly at the Tropic of Cancer.
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As
As the Earth orbits the sun, the seasons change. This diagram shows the seasons as they are in the Southern Hemisphere
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The tilt of the Earth's axis and its path around the sun help explain the seasons.
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http://www.nmm.ac.uk/uploads/gif/seasons-full.gif
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1. Mmrb
http://www.slideshare.net/mmrb/the-earth-basic-vocabulary?qid=46c8ee41-69a0-4a95-a12c-
810dba5f71c4&v=default&b=&from_search=2
2. dmallett
http://www.slideshare.net/dmallett/revision-28221002?qid=46c8ee41-69a0-4a95-a12c-
810dba5f71c4&v=default&b=&from_search=3
3. DavidSP1996
http://www.slideshare.net/DavidSP1996/daynight?qid=46c8ee41-69a0-4a95-a12c-
810dba5f71c4&v=default&b=&from_search=10
4. TurKana Israfilli
http://www.slideshare.net/crazy92/seasons-23505851?qid=46c8ee41-69a0-4a95-a12c-
810dba5f71c4&v=default&b=&from_search=5
5. Mrcoyleteach
http://www.slideshare.net/Mmoledi/savedfiles?s_title=time-zones-10659771&user_login=mrcoyleteach
6. Webhostingguy
http://www.slideshare.net/Mmoledi/savedfiles?s_title=seasons-3624288&user_login=webhostingguy