Secondary 2 Geography Semestral Assessment 2 (End of Year) Paper 5

TuitionGoWhere Practice Paper — Geography Secondary 2

SA2 Practice Paper — Version 5 of 5

Answer Key and Marking Scheme

Section A: Map Skills (15 marks)

Question 1 [1 mark]
Answer: 2546 (accept the correct four-figure grid reference based on the assumed map)
Marking note: Award 1 mark for the correct four-figure grid reference. Easting must come first, then northing. Do not award if reversed.

Question 2 [2 marks]
Answer: 245467 (accept the correct six-figure grid reference based on the assumed map)
Marking scheme:

• 1 mark for correct easting to the nearest tenth (e.g., 24_ )
• 1 mark for correct northing to the nearest tenth (e.g., _ _ 46_)
  Common mistake: Students may write only four figures — award 0 if only four figures are given.

Question 3 [1 mark]
Answer: North-east (accept NE)
Marking note: Accept any correct compass direction based on assumed map positions. Award 1 mark for the correct direction.

Question 4 [2 marks]
Working:

• Measure distance on map: assume 6 cm on map
• Scale: 1 cm = 0.5 km (for 1:50,000 map)
• Actual distance = 6 × 0.5 = 3.0 km

Answer: 3.0 km
Marking scheme:

• 1 mark for correct method shown (measurement × scale)
• 1 mark for correct final answer
  Accept: Answers within a reasonable range (e.g., 2.8–3.2 km) depending on assumed map measurements.

Question 5 [1 mark]
Answer: Residential / Housing (accept any valid land use visible in the assumed grid square, e.g., "park," "forest")
Marking note: Award 1 mark for a correct land-use type consistent with the assumed map.

Question 6 [2 marks]
Answer: The industrial area is located in the south-eastern part of Greenfield Town, near the railway line, around grid reference 2744. It is situated to the east of the main residential area.
Marking scheme:

• 1 mark for correct use of a grid reference
• 1 mark for reference to a named feature (e.g., railway, main road, river)
  Note: Students must include both a grid reference AND a named feature for full marks.

Question 7 [2 marks]
Answer:
(a) It is located near existing roads / transport links, making it accessible.
(b) It is close to existing residential areas / amenities (e.g., school, shops).
Marking scheme:

• 1 mark per valid reason, up to 2 marks
  Acceptable answers include: proximity to roads, near schools/shops, flat land, away from industrial pollution, near existing housing.

Question 8 [4 marks total]
(a) [2 marks]
Answer:
(i) Tall / high-rise buildings
(ii) High building density / many shops / busy roads / heavy traffic
Marking scheme: 1 mark per valid CBD feature identified from the photograph.

(b) [2 marks]
Answer: CBDs are usually found in central locations because they are the most accessible parts of a town or city. Being in the centre allows the greatest number of people to reach the area easily by public transport and on foot. Central locations also tend to have the longest history of development, so commercial activities naturally concentrated there over time.
Marking scheme:

• 1 mark for mentioning accessibility / transport links
• 1 mark for explaining why centrality matters (e.g., maximum reach, historical development, convergence of routes)

Section B: Graph and Data Interpretation (20 marks)

Question 9 [1 mark]
Answer: July
Marking note: Award 1 mark only for "July."

Question 10 [2 marks]
Working:
June: 200 mm
July: 210 mm
August: 195 mm
Total = 200 + 210 + 195 = 605 mm

Answer: 605 mm
Marking scheme:

• 1 mark for correct working (showing all three values being added)
• 1 mark for correct final answer
  Common mistake: Students may only add two months — award 1 mark if working is partially correct.

Question 11 [2 marks]
Answer: Rainfall increases steadily from January (80 mm) to July (210 mm). There is a general upward trend, with each month (except February) receiving more rainfall than the previous month.
Marking scheme:

• 1 mark for identifying the increasing / upward trend
• 1 mark for referencing specific data values from the graph
  Note: Students must cite at least one data value for the second mark.

Question 12 [3 marks]
Answer: I agree that Greenfield Town has a monsoon climate. The data shows that rainfall varies significantly across months — July receives 210 mm while February receives only 60 mm. This pattern of wet and dry seasons is characteristic of a monsoon climate. Additionally, the high annual rainfall (over 1,500 mm per year) supports the idea of a tropical monsoon climate with a distinct wet season.
Marking scheme:

• 1 mark for stating agreement or disagreement (must be supported)
• 1 mark for citing one piece of data (e.g., July rainfall, February rainfall, or annual total)
• 1 mark for linking the data to monsoon climate characteristics (seasonal variation, high annual rainfall)
  Note: Award marks for any well-reasoned response supported by data.

Question 13 [6 marks total]

(a) [2 marks]
Answer: The population of Greenfield Town increased steadily from 40,000 in 2013 to 81,000 in 2023. The growth was gradual but consistent, with no years showing a decline. The rate of growth appears to have been faster between 2016 and 2019.
Marking scheme:

• 1 mark for describing the overall increasing trend
• 1 mark for referencing specific data values or time periods

(b) [2 marks]
Working:
Population in 2023: 81,000
Population in 2013: 40,000
Increase = 81,000 − 40,000 = 41,000 people

Answer: 41,000 people
Marking scheme:

• 1 mark for correct working (subtraction shown)
• 1 mark for correct final answer

(c) [2 marks]
Answer:
(i) Immigration — people moving to Greenfield Town for job opportunities.
(ii) Natural population increase — more births than deaths in the town.
Marking scheme: 1 mark per valid reason.
Acceptable answers: immigration, natural increase, development of new industries, improved healthcare, government housing policies attracting residents.

Question 14 [1 mark]
Answer: HDB Flats
Marking note: Award 1 mark only for "HDB Flats" (45% — the largest segment).

Question 15 [2 marks]
Working:
Condominiums = 25% of 32,000
= 0.25 × 32,000
= 8,000 units

Answer: 8,000 units
Marking scheme:

• 1 mark for correct method (25% × 32,000 or equivalent)
• 1 mark for correct final answer

Section C: Data Response and Application (15 marks)

Question 16 [3 marks]
Answer:
City: City A

Evidence (i): City A has a high average annual temperature of 27°C, which is typical of equatorial regions.
Evidence (ii): City A has a very small annual temperature range of only 3°C, which is characteristic of equatorial climates where temperatures remain fairly constant year-round.
Marking scheme:

• 1 mark for correctly identifying City A
• 1 mark per valid piece of data evidence, up to 2 marks
  Acceptable evidence: high average temperature, small temperature range, high annual rainfall, low latitude (1°N).

Question 17 [2 marks]
Answer: City B has a larger annual temperature range (25°C) because it is located at a higher latitude (45°N). At higher latitudes, there is a greater difference in the amount of solar energy received between summer and winter. In summer, days are longer and the sun is higher in the sky, leading to warmer temperatures. In winter, days are shorter and the sun is lower, leading to much colder temperatures. City A, being near the equator, receives fairly consistent solar energy throughout the year, so its temperature range is small.
Marking scheme:

• 1 mark for linking latitude to temperature range
• 1 mark for explaining the mechanism (variation in solar energy / day length / sun angle between seasons)

Question 18 [2 marks]
Answer:
Advantage: City A has a warm climate year-round (average 27°C), which is comfortable for outdoor activities and does not require heating.
Disadvantage: City A receives very high annual rainfall (2,400 mm), which may lead to frequent flooding and disruption to daily life.
Marking scheme:

• 1 mark for a valid advantage supported by data
• 1 mark for a valid disadvantage supported by data
  Note: Answers must reference data from Fig. 6 to receive marks.

Question 19 [2 marks total]

(a) [1 mark]
Answer: V-shaped valley

(b) [1 mark]
Answer: The valley is narrow and steep-sided, which is typical of the upper course where vertical erosion dominates.
Acceptable answers: steep valley sides, narrow valley floor, shallow river channel, presence of interlocking spurs.

Question 20 [3 marks]
Answer: The floodplain is at risk of flooding because it is a flat area of land adjacent to the river channel. When the river receives heavy rainfall or snowmelt upstream, the volume of water in the channel increases. When the river's discharge exceeds the capacity of the channel, water overflows the banks and spreads across the flat floodplain. The low-lying nature of the floodplain means water naturally flows to and collects in this area. Over time, repeated flooding deposits layers of fertile alluvium on the floodplain, which is evidence that flooding occurs regularly.
Marking scheme:

• 1 mark for explaining that the floodplain is flat and adjacent to the river
• 1 mark for linking heavy rainfall / increased discharge to overflow
• 1 mark for explaining why the floodplain is naturally low-lying and prone to collecting water
  Note: Award marks for any well-structured explanation that demonstrates understanding of flood risk on floodplains.

Mark Summary

Common Mistakes to Watch For

1. Grid references: Students often reverse easting and northing. Remind them: "Along the corridor (easting), then up the stairs (northing)."
2. Distance calculations: Students may forget to apply the scale or may measure in cm without converting to km.
3. Graph descriptions: Students should always cite specific data values, not just say "it increased."
4. Climate questions: Students should link latitude to solar energy received, not just state that "higher latitude = colder."
5. Floodplain explanations: Students should refer to the diagram and use terms like "discharge," "channel capacity," and "overflow."

End of Answer Key