Fig. 5.1 shows part of a weather station.
- (a)Name the box shown in Fig. 5.1.[1]
- (b)(i)Explain why the box shown in Fig. 5.1: is painted white[1]
- (b)(ii)has louvres (slats) in the sides[1]
- (b)(iii)is on legs 1.25m above the ground.[1]
- (c)(i)Fig. 5.2 shows one of the instruments kept inside the box shown in Fig. 5.1. On Fig. 5.2, use labelled arrows to show the position of: alcohol[1]
- (c)(ii)mercury.[1]
- (d)(i)What was the maximum temperature since the instrument shown in Fig. 5.2 was re-set?[1]
- (d)(ii)What was the range of temperature since the instrument was re-set?[1]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2021). The mark or mark type is shown in brackets.
- [1] 5(a) Stevenson Screen,
- [1] 5(b)(i) to reflect the sun/heat/light/radiation/absorb less heat,
- [1] 5(b)(ii) to allow air to enter/circulate/reach instruments/ventilation,
- [1] 5(b)(iii) to avoid ground heat/ground conditions, standardised height/comparability with other stations,
- [1] 5(c)(i) correct label of alcohol, (two possibilities)
- [1] 5(c)(ii) correct label of mercury,
- [1] 5(d)(i) 30 °C,
- [1] 5(d)(ii) 20 °C,
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