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Social sciences: geography

Grade 7

Map work

Module 12

Understanding the symbols on a topographical map

Activity1:

To understand the symbols on a topographical map

[lo 1.4]

  • Study this part of the Ceres 1:50 000 map.

Verklaring Reference

Internasionale Grense
Provinsiale Grense
Veelvoudige Spoorlyn
Enkel Spoorlyn
Geëlektrifiseerde Spoorlyn
Smalspoorlyne
Diensspoorlyn
Hoofverkeerspaaie
Grootpaaie
Sekondêre Paaie
Ander Paaie
Dowwe Paaie en Voetpaaie
Kraglyne
Telefoonlyne
Poskantore, Polisiestasies en -poste
Winkels, Hotelle, Skole en
plekke van Aanbidding
Vuurtorings en Seevaartligte
Seevaartbakens
Trig. Bakens (Nommer regs en hoogte onder)
International Boundaries
Provincial Boundaries
Multiple Track Railways
Single Track Railways
Electrified Railways
Narrow Gauge Railways
Service Railways
Arterial Railways
Main Roads
Secondary Roads
Other Roads
Tracks and Footpaths
Power Lines
Telephone Lines
Post Offices, Police Stations and Posts
Stores, Hotels, Schools and
places of worship
Lighthouses and Marine Lights
Marine Beacons
Trig. Beacons (Number to right and height below)

Verklaring Reference

Magnetiese Stasies en Grondtekens
Hutte
Monumente
Dipbakke
Windpompe
Mure
Grondbewaringswalle
Uitgrawings
Standhoudende water
Nie-standhoudende water
Droë Panne
Fonteine, Watergate en Putte
Moerasse en Vleie
Pyplyne
Fotomiddelpunte
Prominente Klipbanke
Terrasse
Bewerkte Lande
Boorde en Wingerde
Bome en Bos
Magnetic Stations and Ground Signs
Huts
Monuments
Dipping Tanks
Windmills
Walls
Anti-erosion Walls
Excavations
Perennial Water
Non-perennial Water
Dry Pans
Springs, Waterholes and Wells
Marshes, Swamps and Vleis
Pipelines
Photo Centres
Prominent Rock Outcrops
Terraces
Cultivated Lands
Orchards and Vineyards
Trees and Bush

1. Now answer the following questions:

a) How many stations and sidelines are indicated?

b) Is this town serviced from a single or double track?

c) Name the river running through the town.

d) Name the river flowing into the Ceres dam.

e) How many separate living areas are indicated?

f) How high is the highest peak in the Witsenberg?

g) Determine the distance between the police station and the sideline (small station) Skoonvlei.

h) Explain why the contours in the region of the Aartappel River (north of the town) are far from each other, while northwest of Ceres they are very close to each other.

These topographic maps cannot be found in atlases. However, it can be ordered from The State Printer in Pretoria where they are prepared by cartographers from vertical aerial photos and orthophoto maps.

Assessment

Learning Outcomes(LOs)
LO 1
GEOGRAPHICAL ENQUIRYThe learner will be able to use enquiry skills to investigate geographical and environmental concepts and processes.
Assessment standards(ASe)
We know this when the learner:
1.1 identifies a variety of geographical and environmental sources relevant to an inquiry [finds sources];
1.2 organises and interprets information relevant to the enquiry from simple graphs, maps, and statistical sources [works with sources];
1.3 measures distances on globes atlases and maps using line scales [works with sources];
1.4 uses local maps and/or orthophoto maps to locate and investigate the issue and its context (compares with field observations) [works with sources];

Memorandum

Activity 1:

1. 4

2. single track railway

3. Dwars River

4. Koekedou River

5. Main town, second direct east of main town, third north east of main town Nduli.

6. Slab Peak 1 392 m

7. 6,2 cm × 50 000 = 310 000 cm ÷ 10 000 = 3,1 km

8. Aartappel River region is situated in the wide, even river valley, where contours are far from one other to represent a flat slope. The south western region is a higher, mountainous area with steep, mountainous slopes. The contours are therefore very close to one other.

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Source:  OpenStax, Geography grade 7. OpenStax CNX. Sep 09, 2009 Download for free at http://cnx.org/content/col11021/1.1
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