Revision and formal assessment Learner’s Book page 25 Suggested answers
1.1 Lines of latitude are lines going around the globe parallel to the equator and lines of longitude are lines on the globe that join the north and south poles. ü (1)
1.2 Latitude and longitude are measured in degrees and minutes. A minute is one sixtieth of a degree. ü
1.3 A word scale describes in words what one centimetre on the map represents in reality and a ratio scale shows the ratio of 1 cm on the map to the number of centimetres in reality. ü
1.4 The Greenwich meridian is 0º longitude and the equator is 0º latitude. ü
1.5 Rotation describes the movement of the Earth on its axis once every 24 hours and revolution describes the movement of the Earth in its orbit around the sun once every 365¼ days. ü
1.7 The solstice is midsummer’s or midwinter’s day and the equinoxes are days of mid-spring and mid-autumn. ü
2.1 1:500 000 üü
2.2 Learners need to draw answer – draw a line 1 cm long with short vertical lines at either end and write 5 km beneath it. üüü
3.1 2 400 km üüü 3.2 3 800 km üüü
4.1 70 km üü 4.2 85 km üü
(1)
(1) (1)
(1)
1.6 Greenwich Mean Time is standard time at Greenwich 0º longitude and South African Standard Time is standard time at 30ºE, 2 hours ahead of GMT. ü (1)
(1) [7]
(2)
(3) [5]
(3)
(3) [6]
(2)
(2) [4]
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