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Secondary 1 Geography Semestral Assessment 2 (End of Year) Paper 2

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Questions

TuitionGoWhere Practice Paper - Geography Secondary 1

School: TuitionGoWhere Secondary School (AI)
Subject: Geography
Level: Secondary 1
Paper: SA2 Practice Paper — Version 2 of 5
Duration: 60 minutes
Total Marks: 50

Name: ___________________________
Class: ___________________________
Date: ___________________________

Instructions

Answer all questions in the spaces provided.
Read each question carefully before writing your answer.
Show all working for calculation questions.
Use the map, graphs, and data provided in each question.
Write your answers clearly and in full sentences where required.
The number of marks for each question is shown in brackets [ ].

Section A: Map Skills (Questions 1–10)

Refer to the map extract of Bukit Merah Island (Scale: 1:50,000) for Questions 1–8.

(Note: Students should imagine a standard topographical map extract showing contour lines, grid lines numbered 10–19 horizontally and 30–39 vertically, with features such as a school, hospital, river, bridge, temple, police station, and woodland.)

1. State the four-figure grid reference of the school shown on the map.
_________________________________________________________________________________ [1]

2. State the six-figure grid reference of the bridge over the river.
_________________________________________________________________________________ [1]

3. What is the straight-line distance, in kilometres, between the hospital (grid ref. 1432) and the temple (grid ref. 1735)? Use the scale provided.

_________________________________________________________________________________ [2]

4. State the compass direction of the police station from the school.
_________________________________________________________________________________ [1]

5. Identify the type of land use found in grid square 1534.
_________________________________________________________________________________ [1]

6. The contour interval on this map is 10 metres.
(a) What is the height of the land at point X located on the 50 m contour line?
_________________________________________________________________________________ [1]
(b) Describe the shape of the land in the area around grid square 1237.

_________________________________________________________________________________ [2]

7. A student walks from the school (grid ref. 1233) to the temple (grid ref. 1735).
(a) In which general direction does the student walk?
_________________________________________________________________________________ [1]
(b) Estimate the actual walking distance in kilometres if the route follows the road shown on the map.

_________________________________________________________________________________ [2]

8. Explain why the area in grid square 1838 is suitable for building a housing estate. Give two reasons.

_________________________________________________________________________________ [2]

Section B: Graph and Data Interpretation (Questions 11–17)

Refer to the bar graph and table below for Questions 11–15.

Figure 1: Monthly Rainfall in Singapore (2023)

(Imagine a bar graph showing monthly rainfall in mm: Jan: 250, Feb: 180, Mar: 200, Apr: 220, May: 190, Jun: 160, Jul: 140, Aug: 150, Sep: 170, Oct: 210, Nov: 280, Dec: 320)

Table 1: Average Monthly Temperatures in Singapore (2023)

Month	Average Temperature (°C)
January	27.0
February	27.5
March	28.0
April	28.5
May	28.5
June	28.0
July	27.5
August	27.5
September	27.5
October	27.5
November	27.0
December	27.0

9. According to Figure 1, which month recorded the highest rainfall?
_________________________________________________________________________________ [1]

10. What was the total rainfall (in mm) for the months of November and December combined?

_________________________________________________________________________________ [2]

11. Calculate the average monthly rainfall for the whole year 2023. Show your working.

_________________________________________________________________________________ [2]

12. Describe the trend in rainfall from June to December.

_________________________________________________________________________________ [2]

13. Using Table 1, state the range of average monthly temperatures for 2023. Show your working.

_________________________________________________________________________________ [2]

14. Based on both Figure 1 and Table 1, explain the relationship between temperature and rainfall in Singapore during 2023.

_________________________________________________________________________________ [2]

15. A student claims that Singapore has a dry season from June to August. Using evidence from Figure 1, explain whether you agree or disagree with this statement.

_________________________________________________________________________________ [2]

Section C: Data Response and Application (Questions 16–20)

Refer to the following information for Questions 16–20.

Source A: Water Quality Data for Three Rivers in Singapore (2024)

River	Dissolved Oxygen (mg/L)	pH Level	Turbidity (NTU)	E. coli Count (per 100 mL)
Kallang	6.2	7.1	15	200
Geylang	4.8	6.8	28	850
Rochor	5.5	7.0	22	500

(Note: Higher dissolved oxygen = better water quality. pH 7 = neutral. Lower turbidity = clearer water. Lower E. coli = safer water.)

16. Which river has the best water quality based on the dissolved oxygen level?
_________________________________________________________________________________ [1]

17. Which river is the most polluted based on the E. coli count?
_________________________________________________________________________________ [1]

18. Calculate the average turbidity of the three rivers. Show your working.

_________________________________________________________________________________ [2]

19. The National Environment Agency (NEA) wants to improve water quality in the most polluted river. Suggest two measures they could take to reduce the E. coli count.

_________________________________________________________________________________ [2]

20. A student says: "The Kallang River is the cleanest because it has the highest pH level." Do you agree? Explain your answer using at least two pieces of evidence from Source A.

_________________________________________________________________________________ [3]

End of Paper

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Answers

TuitionGoWhere Practice Paper - Geography Secondary 1

Subject: Geography
Level: Secondary 1
Paper: SA2 Practice Paper — Version 2 of 5
Total Marks: 50

Answer Key and Marking Scheme

Section A: Map Skills (Questions 1–10)

1. State the four-figure grid reference of the school.
Answer: 1233
[1 mark]
Note: Read easting (horizontal) first = 12, then northing (vertical) = 33. Common error: reversing the order.

2. State the six-figure grid reference of the bridge.
Answer: 145335 (accept any reasonable 6-figure reference within the correct grid square, e.g., 146336)
[1 mark]
Note: The first two digits = easting grid line, third digit = estimated tenths across the square. First two digits after the space = northing grid line, third digit = estimated tenths up the square.

3. Straight-line distance between hospital (1432) and temple (1735).
Working:

Measure distance on map (e.g., 7 cm).
Scale: 1:50,000 means 1 cm = 0.5 km.
7 cm × 0.5 km = 3.5 km (accept 3.0–4.0 cm depending on measurement).
Answer: Approximately 3.5 km
[2 marks]
1 mark for correct method, 1 mark for correct answer within acceptable range.

4. Compass direction of police station from school.
Answer: North-east (accept NE)
[1 mark]
Note: Police station is located to the north and east of the school on the map.

5. Type of land use in grid square 1534.
Answer: Woodland / Forest
[1 mark]
Note: The map symbol in that square represents woodland.

6. Contour interval questions.
(a) Height at point X on the 50 m contour line.
Answer: 50 metres
[1 mark]

(b) Shape of land in grid square 1237.
Answer: The land is steep / hilly because the contour lines are close together.
[2 marks]
1 mark for identifying steep/hilly, 1 mark for referencing close contour lines.

7. Student walks from school (1233) to temple (1735).
(a) General direction:
Answer: North-east
[1 mark]

(b) Estimated walking distance along the road:
Working:

Measure road distance on map (e.g., 10 cm).
10 cm × 0.5 km = 5.0 km (accept 4.5–6.0 km).
Answer: Approximately 5.0 km
[2 marks]
1 mark for method, 1 mark for reasonable estimate.

8. Why grid square 1838 is suitable for a housing estate. Give two reasons.
Answer:

The land is flat (contour lines are far apart), making it easy and cheap to build on.
It is near the road / transport links, providing good accessibility for residents.
[2 marks]
1 mark per valid reason. Other acceptable answers: near amenities, away from flooding risk, etc.

Section B: Graph and Data Interpretation (Questions 9–15)

9. Month with the highest rainfall.
Answer: December (320 mm)
[1 mark]

10. Total rainfall for November and December combined.
Working:

November: 280 mm
December: 320 mm
Total: 280 + 320 = 600 mm
Answer: 600 mm
[2 marks]
1 mark for correct values, 1 mark for correct total.

11. Average monthly rainfall for 2023.
Working:

Total rainfall = 250 + 180 + 200 + 220 + 190 + 160 + 140 + 150 + 170 + 210 + 280 + 320 = 2,470 mm
Average = 2,470 ÷ 12 = 205.8 mm (accept 205–206 mm)
Answer: Approximately 205.8 mm
[2 marks]
1 mark for correct total, 1 mark for correct division and answer.

12. Trend in rainfall from June to December.
Answer: Rainfall generally increases from June (160 mm) to December (320 mm), with a slight dip in August (150 mm) and September (170 mm). The trend shows that the second half of the year is wetter, especially November and December.
[2 marks]
1 mark for identifying increasing trend, 1 mark for supporting with data references.

13. Range of average monthly temperatures.
Working:

Highest temperature: 28.5°C (April and May)
Lowest temperature: 27.0°C (January, November, December)
Range = 28.5 − 27.0 = 1.5°C
Answer: 1.5°C
[2 marks]
1 mark for identifying highest and lowest, 1 mark for correct calculation.

14. Relationship between temperature and rainfall.
Answer: There is no clear direct relationship between temperature and rainfall in Singapore. Temperatures remain fairly constant throughout the year (27.0–28.5°C), while rainfall varies significantly (140–320 mm). For example, December has high rainfall (320 mm) but a relatively low temperature (27.0°C), while April has high temperature (28.5°C) but moderate rainfall (220 mm).
[2 marks]
1 mark for stating no clear relationship, 1 mark for supporting with evidence.

15. Does Singapore have a dry season from June to August?
Answer: I partially agree. Rainfall from June to August (160, 140, 150 mm) is lower than other months, but it is not truly "dry" as Singapore still receives significant rainfall (140–160 mm). A dry season typically has very little or no rain, which is not the case here. Singapore's climate is tropical equatorial with no distinct dry season.
[2 marks]
1 mark for agreeing/disagreeing with evidence, 1 mark for explaining why using climate knowledge.

Section C: Data Response and Application (Questions 16–20)

16. River with best water quality based on dissolved oxygen.
Answer: Kallang River (6.2 mg/L — highest dissolved oxygen)
[1 mark]

17. Most polluted river based on E. coli count.
Answer: Geylang River (850 per 100 mL — highest E. coli count)
[1 mark]

18. Average turbidity of the three rivers.
Working:

Turbidity values: 15, 28, 22 NTU
Total: 15 + 28 + 22 = 65
Average: 65 ÷ 3 = 21.7 NTU (accept 21.6–21.7)
Answer: Approximately 21.7 NTU
[2 marks]
1 mark for correct total, 1 mark for correct division.

19. Two measures to reduce E. coli count in the most polluted river.
Answer:

Improve sewage treatment — ensure all wastewater is properly treated before being released into the river.
Enforce stricter regulations on industrial discharge — prevent factories from dumping untreated waste into the river.
[2 marks]
1 mark per valid measure. Other acceptable answers: public education campaigns, regular river clean-ups, installing filtration systems, etc.

20. Do you agree that Kallang River is the cleanest because it has the highest pH?
Answer: I disagree. While Kallang River does have the highest pH (7.1), pH alone does not determine water quality. Kallang River is actually the cleanest based on multiple indicators:

It has the highest dissolved oxygen (6.2 mg/L), which supports aquatic life.
It has the lowest turbidity (15 NTU), meaning the water is clearest.
It has the lowest E. coli count (200 per 100 mL), making it safest for human contact.
The student's claim is partially correct but incomplete — pH is only one factor, and Kallang's pH of 7.1 is only slightly higher than the others (6.8–7.0). The other indicators provide stronger evidence for Kallang being the cleanest.
[3 marks]
1 mark for agreeing/disagreeing, 1 mark for using at least two pieces of evidence, 1 mark for explaining why pH alone is insufficient.

Mark Summary

Section	Questions	Marks
A: Map Skills	1–8	13
B: Graph & Data	9–15	13
C: Data Response	16–20	11
Total	20 questions	50 marks

Common Mistakes to Avoid

Grid references: Always read easting (horizontal) first, then northing (vertical).
Distance calculations: Remember to convert map distance to actual distance using the scale.
Contour lines: Close lines = steep slope; far apart = flat/gentle slope.
Data interpretation: Read graph axes carefully and use correct units.
Explanations: Always support your answer with evidence from the data provided.

End of Answer Key