More Related Content
What's hot
What's hot (20)
Similar to Social Science Grade 8 Maps and Globes.pptx
Similar to Social Science Grade 8 Maps and Globes.pptx (20)
Recently uploaded
Recently uploaded (20)
Social Science Grade 8 Maps and Globes.pptx
- 1. MAPS AND GLOBES GEOGRAPHY GRADE 8
- 2. What is a Globe? • 3D scale model of the real world on a sphere or round object
- 3. What is a map? • 2D scale drawing of the real world on a flat piece of paper
- 4. Equator (0°) Northern Hemisphere Southern Hemisphere North Pole (90° N) South Pole (90° S) Latitude Equidistant
- 5. • the angular distances, in degrees, of a point north or south of the Equator • horizontal lines on maps and globes at 1°intervals • a.k.a. parallels • Equidistant (1°=111 km apart) Latitudes are …
- 6. South Pole (90° S) North Pole (90° N) Longitude
- 7. • the angular distances, in degrees, of a point east or west of the Prime (Greenwich) Meridian • vertical lines on maps and globes at 1°intervals • a.k.a. meridians • Equidistant only around equator, become shorter toward poles Longitudes are …
- 8. Important lines of latitude and longitude
- 9. Western Hemisphere Northern Hemisphere Southern Hemisphere S;E Graticules are a… • network of lines which form blocks that make up a grid
- 10. Equator (0°) North Pole (90° N) South Pole (90° S) Coordinates What is a coordinate? Point of intersection between a line of latitude and line of longitude • Location of places can be given in coordinates Coordinate Coordinates can be given in degrees (°), minutes (`) and seconds (``) where lines intersect
- 11. 20` 30` 40` 50` 20` 10` 33º00`S 34º00`S 19º00`E 20º00` 40` 30` 50` 10` Co-ordinates: from ° to ` • Each grid square can be divided into minutes • 1º = 60` • Each 60th minute switches to the next degree Give the coordinates in ° and ` for the: Aeroplane Church Flag 19º35`E 33º24`S 19º58`E 33º48`S 19º15`E 33º55`S
- 12. • Learners complete activity on: • World map and • Coordinates • Educator provides worksheet Learner activity
- 13. 33º S 34º 35º 19º E 20º 21º 15` 30` 45` 15` 30` 45` 45` 30` 15` 45` 30` 15` CERES SWELLENDAM BREDASDORP CALEDON LADISMITH Answers: Coordinates in ° and` WESTERN CAPE 33º21`S 19º17`E 33º29`S 20º16`E 34º14`S 19º27`E
- 14. 14 Working with map scales 1:50 000 What is a scale? • Relationship between map distance and ground distance • i.e. the amount of times real life features on the ground has been reduced on a map • e.g. 1:50 000 1cm = 50 000 cm 1cm = 500 m 1cm = 0.5 km
- 15. Written / Word scale Ratio Scale or Representative Fraction Graphic Scale (Line Scale) 1cm on the map represents 0,5 kms on the ground Types of Scales
- 16. The concept of scale… 1:2 000 000 1:800 000 1:250 000 1:50 000 1:10 000
- 17. 17 Scale Conversion Scale can be converted using the following table: 0 0 1 0 0 0 0 0 0 1 0 0 0 1 0 1 Millimetres MM Centimetres CM Decimetres DM Metres M Decametres DAM Hectametres HM Kilometres KM mm cake delicious make does Henry King
- 18. 18 Calculating distance using scale Measure map distance in cm Do a quick calculation FOR ANSWERS IN KM'S: Map distance (cm) x Scale (denominator) Number of cm in a km = (100 000) FOR ANSWERS IN M'S: Map distance (cm) x Scale (denominator) Number of cm in a m = (100)
- 19. 19 Example What is the real distance in km: = 1,2 x 50 000 100 000 = 0.6 km What is the real distance in metres: = 1,2 x 50 000 100 = 600 metres 1.2 cm Road Scale: 1:50 000 Map distance: 1.2 cm
- 20. 20 Scale Conversion Convert the scales given below in your workbook: Which map has the larger scale? Substantiate km 10 cm km 1 cm m 1 mm m cm 1 cm 10 000 1 cm Distance on ground Distance on map km 2 cm km 1 cm m 1 mm m cm 1 0.1 10 100 1 0.5 50 500 1 cm 50 000 1 cm Distance on ground Distance on map 1:50 000 1:10 000
- 21. 19 E 22 E 23 E 25 E 27 E 24 E 26 E 20 E 21 E 16 E 17 E 18 E 29 E 31 E 28 E 30 E 32 E 22 S 25 S 30 S 34 S Stellenbosch Stilbaai