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Secondary 2 Geography Fieldwork Quiz
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Questions
Secondary 2 Geography Quiz - Fieldwork
Name: _________________________
Class: _________________________
Date: _________________________
Score: ______ / 40
Duration: 45 minutes
Total Marks: 40
Instructions
- Answer all questions in the spaces provided.
- Read each question carefully before writing your answer.
- For data-based questions, refer to the sources provided.
- The number of marks for each question is shown in brackets [ ].
- Write your answers clearly and in complete sentences where required.
Section A: Fieldwork Planning and Methods (Questions 1–10)
Answer all questions in this section.
1. State two reasons why fieldwork is an important part of studying geography.
[2 marks]
2. A group of students wants to investigate the water quality of a local stream.
(a) Name one primary data collection method they could use.
[1 mark]
(b) Explain why the method you named in (a) is suitable for this investigation.
[2 marks]
3. Study the diagram below showing a fieldwork investigation site.
[Diagram: A river with sampling points A, B, C marked along its course]
A (upstream) ----> B (midstream) ----> C (downstream)
(a) Why is it important to collect data at multiple points along the stream?
[2 marks]
(b) Suggest one variable that might differ between Point A and Point C.
[1 mark]
4. Define the term primary data in the context of fieldwork.
[1 mark]
5. A student wants to investigate how land use changes across different parts of a town.
(a) Identify one sampling method that would be appropriate for this study.
[1 mark]
(b) State one advantage of the sampling method you identified in (a).
[1 mark]
6. The table below shows the number of vehicles counted at a road junction during different times of the day.
| Time of Day | Number of Vehicles |
|---|---|
| 7:00–8:00 | 120 |
| 12:00–13:00 | 85 |
| 17:00–18:00 | 140 |
| 21:00–22:00 | 40 |
(a) At what time was the highest number of vehicles recorded?
[1 mark]
(b) Suggest one reason for the pattern shown in the data.
[2 marks]
7. State two safety precautions students should take when conducting fieldwork near a river.
[2 marks]
8. Explain the difference between qualitative and quantitative data. Give one example of each.
[3 marks]
9. A fieldwork group uses questionnaires to collect data from residents about their satisfaction with local parks.
(a) State one advantage of using questionnaires for fieldwork.
[1 mark]
(b) State one disadvantage of using questionnaires for fieldwork.
[1 mark]
10. Why is it important to record the date, time, and weather conditions when collecting fieldwork data?
[2 marks]
Section B: Data Presentation and Analysis (Questions 11–16)
Answer all questions in this section.
11. A student collected data on the temperature at five different locations in a park. The results are shown below.
| Location | Temperature (°C) |
|---|---|
| Under tree shade | 26 |
| Open grass area | 32 |
| Near water body | 28 |
| Paved car park | 35 |
| Near building | 30 |
(a) Which location recorded the highest temperature?
[1 mark]
(b) Calculate the range of temperatures recorded. Show your working.
[2 marks]
(c) Suggest one reason why the paved car park recorded a higher temperature than under the tree shade.
[2 marks]
12. The bar graph below shows the number of people visiting a nature reserve on different days of the week.
[Bar graph description]
Mon: 50, Tue: 45, Wed: 40, Thu: 55, Fri: 80, Sat: 150, Sun: 180
(a) On which day did the nature reserve receive the most visitors?
[1 mark]
(b) Calculate the total number of visitors across all seven days. Show your working.
[2 marks]
(c) Suggest two reasons why visitor numbers are higher on weekends.
[2 marks]
13. A student drew a field sketch of a coastal area.
(a) State two features that should be included in a good field sketch.
[2 marks]
(b) Explain why field sketches are useful in geographical fieldwork.
[2 marks]
14. Study the following data collected from a traffic survey at a school gate.
| Vehicle Type | Number Counted |
|---|---|
| Cars | 65 |
| Motorcycles | 30 |
| Buses | 10 |
| Bicycles | 25 |
(a) Draw a pie chart to represent this data. Show your calculations.
[3 marks]
(b) Which mode of transport was most commonly used?
[1 mark]
15. A group of students measured the width of a river at five different points. Their results were: 4.2 m, 5.1 m, 3.8 m, 4.7 m, and 5.5 m.
(a) Calculate the mean width of the river. Show your working.
[2 marks]
(b) State one possible reason why the river width varies at different points.
[1 mark]
16. Explain why it is important to present fieldwork data using graphs or charts rather than only using tables.
[2 marks]
Section C: Fieldwork Evaluation and Conclusions (Questions 17–20)
Answer all questions in this section.
17. After completing a fieldwork investigation on litter in a park, a student concluded that "most litter was found near the food court."
(a) State one piece of evidence that would support this conclusion.
[1 mark]
(b) Suggest one limitation of this conclusion.
[2 marks]
18. A fieldwork group investigated the relationship between distance from a factory and air quality. They found that air quality was poorer closer to the factory.
(a) State the hypothesis that this investigation was likely testing.
[2 marks]
(b) Suggest one way the students could improve the reliability of their results.
[1 mark]
19. Evaluate the effectiveness of using observation as a fieldwork method for studying pedestrian movement in a shopping area.
[4 marks]
20. A student conducted fieldwork to investigate whether vegetation cover affects soil temperature. The results showed that areas with more vegetation had lower soil temperatures.
(a) State the conclusion of this investigation.
[2 marks]
(b) Explain why this conclusion is useful for urban planning.
[2 marks]
(c) Suggest one further investigation that could build on these findings.
[1 mark]
End of Quiz
Answers
Secondary 2 Geography Quiz - Fieldwork: Answer Key
Total Marks: 40
Section A: Fieldwork Planning and Methods (Questions 1–10)
1. State two reasons why fieldwork is an important part of studying geography.
[2 marks]
Answer:
- It allows students to collect first-hand (primary) data about the environment. [1]
- It helps students develop practical geographical skills such as observation, measurement, and data recording. [1]
- It enables students to see geographical concepts in real-world contexts. [1]
- It encourages critical thinking and problem-solving through direct investigation. [1]
(Any two valid reasons, 1 mark each)
2. A group of students wants to investigate the water quality of a local stream.
[3 marks total]
(a) Name one primary data collection method they could use.
[1 mark]
Answer:
- Water sampling and testing (e.g., using pH strips or turbidity tubes) [1]
- Observing and recording visible characteristics of the water (colour, smell, presence of litter) [1]
- Measuring dissolved oxygen or temperature using probes [1]
(Any one valid primary data collection method)
(b) Explain why the method you named in (a) is suitable for this investigation.
[2 marks]
Answer:
- Water sampling allows direct measurement of water quality indicators such as pH, turbidity, or pollutant levels, providing accurate and specific data. [1] This gives quantitative results that can be compared against water quality standards. [1]
(Marking: 1 mark for identifying why it is direct/accurate; 1 mark for explaining how it relates to water quality assessment)
3. Study the diagram showing a fieldwork investigation site.
[3 marks total]
(a) Why is it important to collect data at multiple points along the stream?
[2 marks]
Answer:
- To identify changes or patterns along the stream's course (e.g., changes in water quality, flow speed, or width). [1]
- To ensure the data collected is representative of the entire stream rather than just one location. [1]
(b) Suggest one variable that might differ between Point A and Point C.
[1 mark]
Answer:
- Water speed/flow rate [1]
- Water quality/pollution level [1]
- Width or depth of the stream [1]
- Temperature [1]
(Any one valid variable)
4. Define the term primary data in the context of fieldwork.
[1 mark]
Answer:
- Primary data is information collected first-hand by the researcher/fieldworker through direct observation, measurement, or surveys. [1]
5. A student wants to investigate how land use changes across different parts of a town.
[2 marks total]
(a) Identify one sampling method that would be appropriate for this study.
[1 mark]
Answer:
- Systematic sampling [1]
- Random sampling [1]
- Stratified sampling [1]
(b) State one advantage of the sampling method you identified in (a).
[1 mark]
Answer:
- Systematic: Ensures even coverage across the study area, reducing bias. [1]
- Random: Every location has an equal chance of being selected, making results more representative. [1]
- Stratified: Ensures all different land use types are included in the sample. [1]
6. Vehicle count data table.
[3 marks total]
(a) At what time was the highest number of vehicles recorded?
[1 mark]
Answer:
- 17:00–18:00 (or 5:00–6:00 PM) [1]
(b) Suggest one reason for the pattern shown in the data.
[2 marks]
Answer:
- The highest count during 17:00–18:00 corresponds to the evening rush hour when people are returning home from work. [1] The lowest count at 21:00–22:00 reflects reduced traffic during late evening hours when fewer people are travelling. [1]
7. State two safety precautions students should take when conducting fieldwork near a river.
[2 marks]
Answer:
- Wear appropriate footwear (e.g., boots with good grip) to prevent slipping. [1]
- Stay away from the river edge where the bank may be unstable. [1]
- Work in groups and never conduct fieldwork alone. [1]
- Check weather conditions before starting to avoid flash floods. [1]
- Inform teachers/parents of the fieldwork location and expected return time. [1]
(Any two valid safety precautions, 1 mark each)
8. Explain the difference between qualitative and quantitative data. Give one example of each.
[3 marks]
Answer:
- Qualitative data is descriptive and based on observations, opinions, or characteristics that cannot be measured numerically. [1] Example: describing the colour of water as "murky" or "clear." [½]
- Quantitative data is numerical and can be measured or counted. [1] Example: recording the temperature of water as 28°C or counting 15 pieces of litter. [½]
(Marking: 1 mark each for definitions; ½ mark each for valid examples)
9. Questionnaires about park satisfaction.
[2 marks total]
(a) State one advantage of using questionnaires for fieldwork.
[1 mark]
Answer:
- They allow data to be collected from a large number of people efficiently. [1]
- Responses can be easily compared and analysed. [1]
(b) State one disadvantage of using questionnaires for fieldwork.
[1 mark]
Answer:
- Respondents may not answer honestly or may misunderstand questions. [1]
- The response rate may be low if people are unwilling to participate. [1]
- They may not capture detailed or nuanced opinions. [1]
10. Why is it important to record the date, time, and weather conditions when collecting fieldwork data?
[2 marks]
Answer:
- These factors can influence the data collected (e.g., weather affects river flow, temperature, and visitor numbers). [1] Recording them allows for accurate comparison with data collected at other times and helps identify whether results are typical or affected by specific conditions. [1]
Section B: Data Presentation and Analysis (Questions 11–16)
11. Temperature data from five locations in a park.
[5 marks total]
(a) Which location recorded the highest temperature?
[1 mark]
Answer:
- Paved car park [1]
(b) Calculate the range of temperatures recorded. Show your working.
[2 marks]
Answer:
- Range = Highest value − Lowest value [½]
- Range = 35°C − 26°C [½]
- Range = 9°C [1]
(c) Suggest one reason why the paved car park recorded a higher temperature than under the tree shade.
[2 marks]
Answer:
- Paved surfaces (e.g., asphalt) absorb and retain more solar radiation than vegetated areas. [1] The tree shade blocks direct sunlight from reaching the ground, reducing the temperature underneath. [1]
12. Bar graph showing nature reserve visitors by day of the week.
[5 marks total]
(a) On which day did the nature reserve receive the most visitors?
[1 mark]
Answer:
- Sunday [1]
(b) Calculate the total number of visitors across all seven days. Show your working.
[2 marks]
Answer:
- Total = 50 + 45 + 40 + 55 + 80 + 150 + 180 [½]
- Total = 600 visitors [1½]
(Marking: ½ mark for showing addition; 1 mark for correct total; ½ mark for unit)
(c) Suggest two reasons why visitor numbers are higher on weekends.
[2 marks]
Answer:
- People are not working or attending school on weekends, so they have more free time to visit. [1]
- Families are more likely to visit together when parents are not at work. [1]
- Weekend leisure activities are more common. [1]
(Any two valid reasons, 1 mark each)
13. Field sketch of a coastal area.
[4 marks total]
(a) State two features that should be included in a good field sketch.
[2 marks]
Answer:
- A title describing what the sketch shows [1]
- Labels identifying key features (e.g., cliff, beach, vegetation) [1]
- A compass direction/orientation [1]
- A scale or indication of relative size [1]
(Any two valid features, 1 mark each)
(b) Explain why field sketches are useful in geographical fieldwork.
[2 marks]
Answer:
- They provide a visual record of the fieldwork site that can be referred to later during analysis. [1] They help capture spatial relationships and features that may be difficult to describe in words alone. [1]
14. Traffic survey data.
[4 marks total]
(a) Draw a pie chart to represent this data. Show your calculations.
[3 marks]
Answer:
- Total vehicles = 65 + 30 + 10 + 25 = 130 [½]
- Cars: (65/130) × 360° = 180° [½]
- Motorcycles: (30/130) × 360° = **83°
<stage3_quiz_answers_md>
# Secondary 2 Geography Quiz - Fieldwork: Answer Key
**Total Marks:** 40
---
## Section A: Fieldwork Planning and Methods (Questions 1–10)
---
**1.** State two reasons why fieldwork is an important part of studying geography.
**[2 marks]**
**Answer:**
- It allows students to collect first-hand (primary) data about the environment. [1]
- It helps students develop practical geographical skills such as observation, measurement, and data recording. [1]
- It enables students to see geographical concepts in real-world contexts. [1]
- It encourages critical thinking and problem-solving through direct investigation. [1]
*(Any two valid reasons, 1 mark each)*
---
**2.** A group of students wants to investigate the water quality of a local stream.
**[3 marks total]**
**(a)** Name one primary data collection method they could use.
**[1 mark]**
**Answer:**
- Water sampling and testing (e.g., using pH strips or turbidity tubes) [1]
- Observing and recording visible characteristics of the water (colour, smell, presence of litter) [1]
- Measuring dissolved oxygen or temperature using probes [1]
*(Any one valid primary data collection method)*
**(b)** Explain why the method you named in (a) is suitable for this investigation.
**[2 marks]**
**Answer:**
- Water sampling allows direct measurement of water quality indicators such as pH, turbidity, or pollutant levels, providing accurate and specific data. [1] This gives quantitative results that can be compared against water quality standards. [1]
*(Marking: 1 mark for identifying why it is direct/accurate; 1 mark for explaining how it relates to water quality assessment)*
---
**3.** Study the diagram showing a fieldwork investigation site.
**[3 marks total]**
**(a)** Why is it important to collect data at multiple points along the stream?
**[2 marks]**
**Answer:**
- To identify changes or patterns along the stream's course (e.g., changes in water quality, flow speed, or width). [1]
- To ensure the data collected is representative of the entire stream rather than just one location. [1]
**(b)** Suggest one variable that might differ between Point A and Point C.
**[1 mark]**
**Answer:**
- Water speed/flow rate [1]
- Water quality/pollution level [1]
- Width or depth of the stream [1]
- Temperature [1]
*(Any one valid variable)*
---
**4.** Define the term *primary data* in the context of fieldwork.
**[1 mark]**
**Answer:**
- Primary data is information collected first-hand by the researcher/fieldworker through direct observation, measurement, or surveys. [1]
---
**5.** A student wants to investigate how land use changes across different parts of a town.
**[2 marks total]**
**(a)** Identify one sampling method that would be appropriate for this study.
**[1 mark]**
**Answer:**
- Systematic sampling [1]
- Random sampling [1]
- Stratified sampling [1]
**(b)** State one advantage of the sampling method you identified in (a).
**[1 mark]**
**Answer:**
- *Systematic:* Ensures even coverage across the study area, reducing bias. [1]
- *Random:* Every location has an equal chance of being selected, making results more representative. [1]
- *Stratified:* Ensures all different land use types are included in the sample. [1]
---
**6.** Vehicle count data table.
**[3 marks total]**
**(a)** At what time was the highest number of vehicles recorded?
**[1 mark]**
**Answer:**
- 17:00–18:00 (or 5:00–6:00 PM) [1]
**(b)** Suggest one reason for the pattern shown in the data.
**[2 marks]**
**Answer:**
- The highest count during 17:00–18:00 corresponds to the evening rush hour when people are returning home from work. [1] The lowest count at 21:00–22:00 reflects reduced traffic during late evening hours when fewer people are travelling. [1]
---
**7.** State two safety precautions students should take when conducting fieldwork near a river.
**[2 marks]**
**Answer:**
- Wear appropriate footwear (e.g., boots with good grip) to prevent slipping. [1]
- Stay away from the river edge where the bank may be unstable. [1]
- Work in groups and never conduct fieldwork alone. [1]
- Check weather conditions before starting to avoid flash floods. [1]
- Inform teachers/parents of the fieldwork location and expected return time. [1]
*(Any two valid safety precautions, 1 mark each)*
---
**8.** Explain the difference between *qualitative* and *quantitative* data. Give one example of each.
**[3 marks]**
**Answer:**
- **Qualitative data** is descriptive and based on observations, opinions, or characteristics that cannot be measured numerically. [1] Example: A description of the colour of the water in a stream (e.g., "the water is brown and murky"). [1]
- **Quantitative data** is numerical and can be measured or counted. [1] Example: The pH level of the stream water is 6.5. [1]
*(Marking: 1 mark for correct definition of qualitative, 1 mark for correct example, 1 mark for correct definition of quantitative OR 1 mark for correct example — award 3 marks total for full answer)*
---
**9.** A fieldwork group uses questionnaires to collect data from residents about their satisfaction with local parks.
**[2 marks total]**
**(a)** State one advantage of using questionnaires for fieldwork.
**[1 mark]**
**Answer:**
- Questionnaires allow data to be collected from a large number of people in a relatively short time. [1]
- They provide standardised responses that are easy to compare and analyse. [1]
*(Any one valid advantage)*
**(b)** State one disadvantage of using questionnaires for fieldwork.
**[1 mark]**
**Answer:**
- Respondents may not answer honestly or may misunderstand the questions. [1]
- The response rate may be low if people choose not to participate. [1]
*(Any one valid disadvantage)*
---
**10.** Why is it important to record the date, time, and weather conditions when collecting fieldwork data?
**[2 marks]**
**Answer:**
- Recording these details provides important context for the data collected. [1] For example, weather conditions such as rain may affect river flow or traffic patterns, and the time of day may influence the number of people in an area. [1] This information helps ensure the data can be accurately interpreted and compared with data collected at other times. [1]
*(Any two valid points, 1 mark each)*
---
## Section B: Data Presentation and Analysis (Questions 11–16)
---
**11.** Temperature data at five locations in a park.
**[5 marks total]**
**(a)** Which location recorded the highest temperature?
**[1 mark]**
**Answer:**
- Paved car park [1]
**(b)** Calculate the range of temperatures recorded. Show your working.
**[2 marks]**
**Answer:**
- Range = Highest temperature − Lowest temperature [1]
- Range = 35°C − 26°C = 9°C [1]
**(c)** Suggest one reason why the paved car park recorded a higher temperature than under the tree shade.
**[2 marks]**
**Answer:**
- Paved surfaces (such as asphalt) absorb and retain more heat from the sun because they have a low albedo. [1] In contrast, the tree shade blocks direct sunlight and the process of evapotranspiration from the tree has a cooling effect on the surrounding air. [1]
---
**12.** Bar graph showing visitors to a nature reserve.
**[5 marks total]**
**(a)** On which day did the nature reserve receive the most visitors?
**[1 mark]**
**Answer:**
- Sunday [1]
**(b)** Calculate the total number of visitors across all seven days. Show your working.
**[2 marks]**
**Answer:**
- Total = 50 + 45 + 40 + 55 + 80 + 150 + 180 [1]
- Total = 600 visitors [1]
**(c)** Suggest two reasons why visitor numbers are higher on weekends.
**[2 marks]**
**Answer:**
- People are not at work or school on weekends, so they have more free time to visit recreational areas. [1]
- Families often plan outings together during weekends when children are not in school. [1]
- The weather is often more favourable on weekends (or people perceive weekends as better for leisure). [1]
*(Any two valid reasons, 1 mark each)*
---
**13.** A student drew a field sketch of a coastal area.
**[4 marks total]**
**(a)** State two features that should be included in a good field sketch.
**[2 marks]**
**Answer:**
- A title describing what the sketch shows [1]
- Labels identifying key features (e.g., cliffs, beach, vegetation, buildings) [1]
- A compass direction/orientation [1]
- A scale or indication of relative size [1]
*(Any two valid features, 1 mark each)*
**(b)** Explain why field sketches are useful in geographical fieldwork.
**[2 marks]**
**Answer:**
- Field sketches allow the fieldworker to record what they observe at a site quickly and accurately at the time of the visit. [1] They help capture spatial relationships between features and can highlight important details that may not be obvious in photographs. [1] They also encourage careful observation and help the fieldworker focus on key geographical features. [1]
*(Any two valid points, 1 mark each)*
---
**14.** Traffic survey data at a school gate.
**[4 marks total]**
**(a)** Draw a pie chart to represent this data. Show your calculations.
**[3 marks]**
**Answer:**
- Total vehicles = 65 + 30 + 10 + 25 = 130
- Cars: (65/130) × 360° = 180° [1]
- Motorcycles: (30/130) × 360° = 83.1° (≈ 83°)
- Buses: (10/130) × 360° = 27.7° (≈ 28°)
- Bicycles: (25/130) × 360° = 69.2° (≈ 69°)
- Pie chart drawn accurately with each sector correctly sized and labelled [1]
- Working shown clearly [1]
*(Marking: 1 mark for correct calculations, 1 mark for accurate pie chart, 1 mark for clear working/labels)*
**(b)** Which mode of transport was most commonly used?
**[1 mark]**
**Answer:**
- Cars [1]
---
**15.** River width measurements.
**[3 marks total]**
**(a)** Calculate the mean width of the river. Show your working.
**[2 marks]**
**Answer:**
- Mean = (4.2 + 5.1 + 3.8 + 4.7 + 5.5) ÷ 5 [1]
- Mean = 23.3 ÷ 5 = 4.66 m [1]
**(b)** State one possible reason why the river width varies at different points.
**[1 mark]**
**Answer:**
- The river may be wider at bends or where tributaries join. [1]
- Erosion may have widened certain sections of the river. [1]
- Human modifications (e.g., bridges, embankments) may have altered the width. [1]
*(Any one valid reason)*
---
**16.** Explain why it is important to present fieldwork data using graphs or charts rather than only using tables.
**[2 marks]**
**Answer:**
- Graphs and charts make it easier to identify patterns, trends, and anomalies in the data at a glance. [1] They allow for visual comparison between different data sets, making the findings more accessible and easier to interpret than raw numbers in a table. [1] They also help communicate results more effectively to an audience. [1]
*(Any two valid points, 1 mark each)*
---
## Section C: Fieldwork Evaluation and Conclusions (Questions 17–20)
---
**17.** Litter investigation in a park.
**[3 marks total]**
**(a)** State one piece of evidence that would support this conclusion.
**[1 mark]**
**Answer:**
- The litter count near the food court was significantly higher than at other locations in the park. [1]
- Data showed that 60% of all litter collected was found within 50 metres of the food court. [1]
*(Any one valid piece of evidence)*
**(b)** Suggest one limitation of this conclusion.
**[2 marks]**
**Answer:**
- The data may have been collected on only one day or at one time, which may not be representative of litter patterns at other times. [1] For example, if the fieldwork was conducted on a weekend when the food court was busier, the results may overestimate the amount of litter near the food court compared to a weekday. [1]
- The study may not have considered other factors such as the number of bins available or the proximity of bins to the food court. [1]
*(Any two valid limitation points, 1 mark each)*
---
**18.** Air quality investigation near a factory.
**[3 marks total]**
**(a)** State the hypothesis that this investigation was likely testing.
**[2 marks]**
**Answer:**
- "Air quality decreases as distance from the factory decreases" [1] OR "The closer to the factory, the poorer the air quality." [1]
*(Award 2 marks for a clear, testable hypothesis that links distance from the factory to air quality)*
**(b)** Suggest one way the students could improve the reliability of their results.
**[1 mark]**
**Answer:**
- Repeat the measurements at each location multiple times and calculate an average. [1]
- Take measurements on different days to account for varying weather conditions. [1]
- Increase the number of sampling points at different distances from the factory. [1]
*(Any one valid suggestion)*
---
**19.** Evaluate the effectiveness of using observation as a fieldwork method for studying pedestrian movement in a shopping area.
**[4 marks]**
**Answer:**
*Advantages:*
- Observation allows the researcher to record pedestrian behaviour directly and in real time, providing accurate and authentic data. [1] It does not rely on participants' memory or willingness to cooperate, unlike questionnaires. [1]
*Limitations:*
- Observation can be time-consuming, as the researcher needs to spend extended periods at the site to capture representative data. [1] The presence of the observer may influence pedestrian behaviour (the Hawthorne effect), reducing the validity of the results. [1] It can also be difficult to record large numbers of pedestrians accurately without the aid of technology such as video recording. [1]
*Overall evaluation:*
- Observation is an effective method for studying pedestrian movement because it provides direct, first-hand data. However, its limitations mean it should ideally be combined with other methods (e.g., tally counts, video analysis) to improve accuracy and reliability. [1]
*(Marking: Award up to 2 marks for advantages, up to 2 marks for limitations/evaluation. Maximum 4 marks. Answers should demonstrate balanced evaluation for full marks.)*
---
**20.** Vegetation cover and soil temperature investigation.
**[5 marks total]**
**(a)** State the conclusion of this investigation.
**[2 marks]**
**Answer:**
- Areas with more vegetation cover have lower soil temperatures than areas with less vegetation cover. [1] This is because vegetation provides shade and the process of transpiration cools the surrounding soil. [1]
**(b)** Explain why this conclusion is useful for urban planning.
**[2 marks]**
**Answer:**
- Urban planners can use this information to design cooler cities by increasing vegetation cover such as parks, green roofs, and tree-lined streets. [1] This can help reduce the urban heat island effect, making urban areas more comfortable for residents and reducing energy consumption for cooling. [1]
**(c)** Suggest one further investigation that could build on these findings.
**[1 mark]**
**Answer:**
- Investigate whether different types of vegetation (e.g., grass vs. trees vs. shrubs) have different effects on soil temperature. [1]
- Investigate how vegetation cover affects air temperature at different heights above the ground. [1]
- Compare soil temperature differences between areas with vegetation and areas with different surface materials (e.g., concrete, asphalt, bare soil). [1]
*(Any one valid suggestion)*
---
**End of Answer Key**
---
## Mark Scheme Summary
| Section | Questions | Total Marks |
|---------|-----------|-------------|
| A: Fieldwork Planning and Methods | 1–10 | 21 |
| B: Data Presentation and Analysis | 11–16 | 19 |
| C: Fieldwork Evaluation and Conclusions | 17–20 | 14 |
| **Total** | | **40** |
---
## Grade Boundaries (Suggested)
| Grade | Marks | Percentage |
|-------|-------|------------|
| A | 32–40 | 80–100% |
| B | 24–31 | 60–79% |
| C | 16–23 | 40–59% |
| D | 8–15 | 20–39% |
| F | 0–7 | 0–19% |