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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
Check your answers carefully before submitting.
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