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Secondary 4 Geography Practice Paper 5
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TuitionGoWhere Practice Paper - Geography Secondary 4
Answer Key & Marking Scheme (Version 5)
Subject: Geography
Level: Secondary 4
Topic: Map, Graph & Data Skills
Section A: Map Skills and Spatial Analysis
1. Map Extract A (Note: Answers depend on the hypothetical map described. Marking focuses on technique.)
(a) Grid Reference: [1]
- Accept 1215 or 1216 depending on exact centroid of 'Alpha' in the hypothetical map.
- Marking: 1 mark for correct 4-figure reference.
(b) Distance Measurement: [2]
- Method: Measure distance in cm on map -> Convert using scale (e.g., 1:50,000).
- Answer: Approx 3.5 km - 4.0 km (depending on exact grid placement).
- Marking: 1 mark for correct measurement in cm; 1 mark for correct conversion to km.
(c) River Flow: [1]
- Answer: Flows from North to South (or North-West to South-East).
- Marking: 1 mark for correct direction. Must indicate flow direction, not just orientation.
(d) Features: [2]
- Physical Feature: River, Forest, Coastline, Hill. (1 mark)
- Human Feature: Bridge, Road, Settlement/Buildings, Lighthouse. (1 mark)
- Marking: 1 mark for each correct identification.
2. Sketch Map Analysis
(a) Site Selection: [3]
- Shading: Area near the Northern Entrance Road but outside the sensitive wetland/forest core. (1 mark)
- Reason: Accessibility for visitors (near road) AND minimizes environmental impact (away from wetland). (2 marks for clear justification linking location to function).
(b) Environmental Conflict: [2]
- Answer: Pollution of water sources / Destruction of habitat for wetland species / Increased noise disturbing wildlife.
- Marking: 1 mark for identifying conflict; 1 mark for explaining the impact (e.g., "Construction drains wetland, killing fish").
Section B: Graph Construction and Interpretation
3. Rainfall Data
(a) Annual Range: [1]
- Calculation: Highest (250mm in Dec) - Lowest (130mm in Jul) = 120 mm.
- Marking: 1 mark for correct answer with unit.
(b) Line Graph Construction: [4]
- Labels: X-axis (Months), Y-axis (Rainfall in mm). (1 mark)
- Plotting: All 12 points plotted accurately within ±1mm tolerance. (1 mark)
- Line: Points joined correctly (straight lines or smooth curve). (1 mark)
- Title: Descriptive title (e.g., "Monthly Rainfall at Station X, 2023"). (1 mark)
(c) Pattern Description: [2]
- Answer: Rainfall is relatively high throughout the year. There is a slight dip in the middle of the year (June/July) and peaks at the beginning and end of the year (Jan/Dec).
- Marking: 1 mark for general trend (high rainfall); 1 mark for specific detail (dip in mid-year or peak in Dec/Jan).
4. Transport Data
(a) Angle Calculation: [2]
- Working: .
- Answer: 144°.
- Marking: 1 mark for correct substitution/working; 1 mark for correct final angle.
(b) Pie Chart Construction: [3]
- Accuracy: Sectors drawn correctly (Private Car 144°, Bus 96°, Coach 60°, Bike 36°, Walk 24°). (1 mark for overall accuracy).
- Labels/Key: All sectors labeled or key provided. (1 mark).
- Title: Appropriate title included. (1 mark).
(c) Implication for Management: [2]
- Answer: Need for large car park facilities (since 40% use private cars) OR Need for better bus stops/shelters (since 26% use public bus).
- Marking: 1 mark for suggestion; 1 mark for linking to data (e.g., "because private cars are the most common mode").
Section C: Photograph and Fieldwork Data Analysis
5. River Fieldwork
(a) Technique: [1]
- Answer: Measuring river velocity / flow rate.
- Marking: 1 mark.
(b) Safety Precaution: [2]
- Answer: Wear non-slip footwear / Use a wading stick for stability / Work in pairs / Avoid deep/fast water.
- Marking: 1 mark for precaution; 1 mark for explanation (e.g., "to prevent slipping on rocky bed").
(c) Representativeness: [2]
- Answer: The spot is rocky, which may slow down water compared to smoother sections / It is only one point, not accounting for variations across the river width.
- Marking: 1 mark for reason; 1 mark for explaining why it biases data.
6. Pedestrian Count
(a) Highest Time: [1]
- Answer: 18:00 (150 pedestrians).
- Marking: 1 mark.
(b) Explanation (12:00 vs 10:00): [2]
- Answer: 12:00 is lunch hour; workers and shoppers are out eating or running errands. 10:00 is typical working hours when people are in offices.
- Marking: 1 mark for identifying lunch/peak activity; 1 mark for contrasting with work hours.
(c) Systematic Sampling: [2]
- Answer: Counting pedestrians at regular intervals (e.g., every 10 minutes or every hour) rather than randomly or continuously.
- Marking: 1 mark for "regular intervals"; 1 mark for context (e.g., "ensures even coverage of the day").
7. Scatter Graph (Land Value)
(a) Relationship: [2]
- Answer: Negative correlation / Inverse relationship. As distance from city centre increases, land value decreases.
- Marking: 1 mark for naming correlation; 1 mark for describing the trend.
(b) Explanation: [2]
- Answer: High accessibility / High demand for central location / Agglomeration of businesses / Limited supply of land in CBD.
- Marking: 1 mark for factor (e.g., accessibility); 1 mark for explanation (e.g., "businesses pay more to be near customers").
(c) Anomaly: [2]
- Answer: A point far from the centre with high land value (or vice versa).
- Reason: Presence of a specific attraction (e.g., airport, university, shopping mall) or zoning laws.
- Marking: 1 mark for identifying anomaly; 1 mark for plausible reason.
Section D: Synthesis and Evaluation
8. Tourism Impact Investigation
(a) Hypothesis: [2]
- Answer: "There is a positive correlation between the number of tourists and the volume of litter on the beach." OR "Litter volume increases as tourist numbers increase."
- Marking: 1 mark for identifying variables (tourists, litter); 1 mark for stating a testable relationship.
(b) Sources of Error: [4]
- Error 1: Human error in counting litter (e.g., missing small items). (1 mark + 1 mark explanation).
- Error 2: Weather conditions affecting litter accumulation (e.g., wind blowing litter away before counting). (1 mark + 1 mark explanation).
- Alternative: Inconsistent timing of counts.
(c) Evaluation of Questionnaires: [4]
- Effectiveness (Pros): Can gather qualitative data on attitudes/opinions that observation cannot; relatively quick to administer. (2 marks).
- Limitations (Cons): Response bias (tourists may give socially desirable answers); low response rate; language barriers. (2 marks).
- Marking: Balanced evaluation required. 2 marks for strengths, 2 marks for limitations.
9. Data Presentation Comparison
(a) Advantage of Choropleth: [2]
- Answer: Shows general patterns/trends across large areas clearly; easy to read overall distribution.
- Marking: 1 mark for advantage; 1 mark for elaboration.
(b) Disadvantage of Choropleth: [2]
- Answer: Assumes uniform density within each unit (e.g., district), hiding variations within the area; dependent on boundary choices.
- Marking: 1 mark for disadvantage; 1 mark for elaboration.
10. Importance of Multiple Data Forms [4]
- Answer:
- Maps show spatial distribution/location. (1 mark)
- Graphs show trends/changes over time or relationships between variables. (1 mark)
- Photographs provide visual evidence/context/ground truth. (1 mark)
- Using all three provides a holistic view, cross-validates data, and reduces bias. (1 mark for synthesis).
- Marking: Up to 4 marks for clear explanation of why integration is better than single-source analysis.
END OF MARKING SCHEME