Paper 3: Geographical Investigations June 2025, Question 1 18 marks
A group of students collected data to investigate changes along a section of a river channel.
The students measured the velocity in the centre of the river at three different survey sites.
Identify one item that could have been used to measure river velocity.
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Name the correct unit of measurement for river velocity.
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Complete the pie chart for Site 3 by plotting the data below.
| Pebble shape | Percentage |
| 1. Sub-rounded | 10% |
| 2. Rounded | 20% |
| 3. Well rounded | 70% |
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Suggest one conclusion the students could make about the changes in pebble shape shown on Figure 1.
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Describe one fieldwork method that could have been used by the students to measure river width.
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Suggest one way this method to measure river width might not have been accurate.
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You have studied a river as part of your geographical investigation.
Evaluate the following statement about your fieldwork:
βMy fieldwork location and survey sites helped me to answer my enquiry question(s).β
Title of your geographical investigation
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