O Level Geography Map Graph Data Skills Quiz

O-Level Geography Quiz - Map Graph Data Skills (Answer Key)

Total Marks: 45

Section A: Data Interpretation [15 marks]

1(a) Suggest how the wind speed data at the three locations could be shown on one graph. [3]

Answer:

• Bar chart/column graph (1 mark)
• X-axis shows the three locations (Site A, Site B, Site C) (1 mark)
• Y-axis shows wind speed in m/s with appropriate scale (1 mark)

Alternative acceptable answers: Comparative bar chart, grouped bar chart Note: Must be ONE graph showing all three locations together

1(b) Other than an anemometer, identify one instrument used to measure wind speed. [1]

Answer: Weather vane / Wind sock / Digital weather station / Handheld wind meter Note: Must be different from anemometer

2(a) Calculate the total rainfall recorded over the 7-day period. [2]

Working: Day 1: 2mm + Day 2: 0mm + Day 3: 5mm + Day 4: 8mm + Day 5: 3mm + Day 6: 1mm + Day 7: 4mm (1 mark) Answer: 23mm (1 mark)

2(b) Describe the pattern of rainfall shown in Figure 1. [2]

Answer:

• Variable/fluctuating rainfall (1 mark)
• Peak on Day 4 (8mm), lowest on Day 2 (0mm) / Generally low amounts with one high day (1 mark)

3 Calculate the weighted score for playground facilities. [3]

Working:

• Strongly Agree: 15 × (+2) = +30
• Agree: 8 × (+1) = +8
• Neutral: 3 × 0 = 0
• Disagree: 2 × (-1) = -2
• Strongly Disagree: 1 × (-2) = -2 (2 marks for correct calculation)

Answer: +34 (1 mark)

4 Suggest one way to improve the reliability of their temperature data collection. [2]

Acceptable answers:

• Collect data over multiple days (1 mark) to account for daily variation (1 mark)
• Take measurements at the same times each day (1 mark) to ensure consistency (1 mark)
• Use multiple thermometers (1 mark) to check for instrument error (1 mark)
• Take readings at more frequent intervals (1 mark) to capture temperature changes (1 mark)

5 State two visible features of this beach. [2]

Sample answers: (Any two for 1 mark each)

• Gentle slope/gradient
• Sandy material
• Wave-cut platform visible
• Rocky outcrops
• Curved/bay shape
• Vegetation line at back of beach

Section B: Map Skills and Analysis [18 marks]

6(a) Give the 6-figure grid reference for the weather station. [2]

Answer: [Specific to map provided - e.g., 452213] (2 marks for correct 6-figure reference, 1 mark if 4-figure given)

6(b) Measure the straight-line distance from the lighthouse to the pier. [2]

Answer: [Distance based on map scale - e.g., 2.3 km] (2 marks for correct measurement ±0.1km)

6(c) Describe the relief of the area between grid squares 4521 and 4621. [3]

Sample answer:

• Hilly/undulating terrain (1 mark)
• Heights range from [X]m to [Y]m (1 mark)
• Steep slopes on [direction] side / Gentle slopes towards [direction] (1 mark)

7(a) Describe the global distribution pattern of earthquakes. [3]

Answer:

• Concentrated along plate boundaries/fault lines (1 mark)
• Ring of Fire around Pacific Ocean (1 mark)
• Linear patterns along mid-ocean ridges and mountain ranges (1 mark)

7(b) Explain why earthquakes are concentrated in certain regions. [4]

Answer:

• Earthquakes occur at plate boundaries (1 mark)
• Tectonic plates move and interact (1 mark)
• Friction between plates builds up stress/pressure (1 mark)
• When stress exceeds rock strength, sudden movement occurs causing earthquakes (1 mark)

8(a) State the wettest month shown on the graph. [1]

Answer: [Month from graph - typically November/December for Singapore] (1 mark)

8(b) Calculate the temperature range for Singapore. [2]

Working: Highest temperature - Lowest temperature = range (1 mark) Answer: [e.g., 28°C - 26°C = 2°C] (1 mark)

8(c) Suggest one reason why Singapore experiences high rainfall throughout the year. [1]

Answer:

• Equatorial location/near equator (1 mark)
• Convectional rainfall due to high temperatures (1 mark)
• Monsoon influence (1 mark)

Section C: Fieldwork and Evaluation [12 marks]

9(a) Suggest one advantage of conducting the study during this time period. [2]

Answer:

• Low tide period allows access to full beach profile (1 mark) for complete data collection (1 mark)
• Good visibility/daylight (1 mark) ensures accurate measurements (1 mark)
• Consistent weather conditions (1 mark) reduce measurement errors (1 mark)

9(b) Identify one limitation of collecting data on only one day. [2]

Answer:

• Weather conditions may not be typical (1 mark) affecting beach profile shape (1 mark)
• Seasonal variations not captured (1 mark) limiting representativeness (1 mark)
• Tidal conditions may be unusual (1 mark) affecting beach exposure (1 mark)

10 Evaluate whether the data collection method is reliable. [4]

Mark scheme:

• Level 1 (1-2 marks): Basic evaluation with limited justification
• Level 2 (3-4 marks): Clear evaluation with good justification and examples

Sample answer: The data collection method is partially reliable. Strengths: Systematic sampling every 10 metres provides consistent intervals and reduces bias. Measuring from high tide to low tide mark covers the full beach profile. Weaknesses: Single day collection may not represent typical conditions - storms or unusual tides could affect results. Four-hour time window is short and may not account for tidal changes during measurement. Conclusion: Method has good structure but needs multiple days for reliability.

11 Suggest how they could present their data to show this relationship clearly. [2]

Answer:

• Scatter graph/scatter plot (1 mark)
• Distance from city centre on x-axis, air pollution levels on y-axis (1 mark)

12 Suggest one additional factor that could affect beach slope. [2]

Answer:

• Wave energy/strength (1 mark) - high energy waves create steeper slopes (1 mark)
• Tidal range (1 mark) - larger tidal range affects slope development (1 mark)
• Sediment supply (1 mark) - more sediment creates gentler slopes (1 mark)
• Coastal protection/sea walls (1 mark) - artificial structures modify natural slope (1 mark)