Relief, contour lines and Ordnance Survey maps

9.Put these stages of drawing a cross-section from a contour map into the correct order.

10.Match each map feature with its description.

11.Study the contour pattern described: a series of contour lines forming a closed loop with the highest values in the centre, and the lines are evenly spaced. What landform does this represent?

12.On a map with a contour interval of 20 metres, a hill has five contour lines. The lowest contour is at 100 metres. What is the height of the highest contour?

13.Which of the following are true about the history of contour lines? (select all that apply)

14.A cross-section is a side view of the land between two points on a map.

15.Which term is used for a contour line that joins points of equal depth below the sea?

16.Which of the following names have been proposed or used for lines joining points of equal value? (select all that apply)

17.The gradient of a surface is always perpendicular to the contour lines.

18.Match each term with its correct definition.

19.Put the following historical uses of contour-type lines into the correct chronological order, from earliest to latest.

20.On an Ordnance Survey map, what does a triangulation pillar indicate?

21.Which of the following features can be shown on an Ordnance Survey map using contour lines? (select all that apply)

22.A spot height on an Ordnance Survey map gives the exact height of a point.

23.Why are contour lines drawn close together on a map?

24.A valley is shown on a contour map by contour lines that are V-shaped. Which way does the point of the V indicate?

25.A ridge is shown on a contour map by contour lines that are V-shaped. Which way does the point of the V indicate?

26.Why do Ordnance Survey maps use layer colouring as well as contour lines?

27.Why is a cross-section useful when studying a route across a map?

28.A river flows through a valley. How does the contour pattern usually change as you move from the valley floor up to the surrounding hilltop?

29.Why might a map maker choose a contour interval of 10 metres rather than 50 metres for a small area of gently rolling land?

30.Which of the following statements explain why contour lines are useful to a walker planning a route? (select all that apply)

31.Which of the following are consequences of contour lines being far apart on a map? (select all that apply)

32.Contour lines that are close together show a gentle slope.

33.A spot height gives the exact height of a point, while a contour line only shows that the ground is at a particular height somewhere along the line.

34.Match each contour pattern with the landform it shows.

35.Put these steps for drawing a cross-section from a contour map into the correct order.

36.A student reads a map description: 'A narrow band of contour lines runs up a hillside and crosses the valley floor, forming a V shape that points upstream.' What does this pattern show?

37.A map has contour lines that are very close together on one side of a hill and far apart on the other. Which statements are true? (select all that apply)

38.A spot height on a map gives the exact height of a point, while a contour line only shows that the ground is at a particular height somewhere along the line.

39.An Ordnance Survey map shows a triangulation pillar at a summit and a spot height of 342 m nearby. What is the most useful thing the triangulation pillar tells a map reader?

40.Which term means a line on a map that joins points of equal value?

41.What is the name for a line on a map that joins points of equal depth below the sea?

42.If the contour interval on a map is 10 metres, what is the height difference between a point on the 50-metre contour and a point on the 90-metre contour?

43.Complete the sentence about contour lines.

44.What name is given to a contour line that joins points of equal slope?

45.A map has a contour interval of 20 metres. A hill is shown by six contour lines. If the lowest contour is at 100 metres, what is the height of the highest contour, in metres?

46.Complete the sentence about contour lines using the correct terms.

47.Complete the sentence about how contour patterns show landforms.

48.What is the name for the difference in height between one contour line and the next?

49.A map has a contour interval of 20 metres. A hill is shown by six contour lines, and the lowest contour is at 100 metres. What is the height of the highest contour, in metres?

50.On a map with a contour interval of 10 metres, a point lies on the 40-metre contour and another point lies on the 90-metre contour. What is the height difference between them, in metres?

51.A map has a contour interval of 20 metres. A point lies on the 140-metre contour and another point lies on the 200-metre contour. What is the height difference between these two points, in metres?

52.On a map with a contour interval of 25 metres, a hill is shown by five contour lines. The lowest contour is at 150 metres. What is the height of the highest contour, in metres?

53.Explain how you would recognise a valley on an Ordnance Survey map from its contour pattern.

54.Explain how you would recognise a ridge on an Ordnance Survey map from its contour pattern.

55.Explain how the spacing of contour lines can help you decide whether a route across a map will be easy or difficult to walk.

56.Explain why the contour pattern of a valley is different from that of a ridge.

57.Explain how contour lines can be used to describe the steepness of a slope.

58.If the contour interval on a map is 10 metres, what is the height difference between a point on the 50-metre contour and a point on the 90-metre contour?

59.A map has a contour interval of 20 metres. A hill is shown by six contour lines. If the lowest contour is at 100 metres, what is the height of the highest contour, in metres?

60.A map has a contour interval of 20 metres. A hill is shown by six contour lines, and the lowest contour is at 100 metres. What is the height of the highest contour, in metres?

61.On a map with a contour interval of 10 metres, a point lies on the 40-metre contour and another point lies on the 90-metre contour. What is the height difference between them, in metres?

62.A map has a contour interval of 20 metres. A point lies on the 140-metre contour and another point lies on the 200-metre contour. What is the height difference between these two points, in metres?

63.On a map with a contour interval of 25 metres, a hill is shown by five contour lines. The lowest contour is at 150 metres. What is the height of the highest contour, in metres?