Extended Writing: 6-Mark Questions

Six-mark questions are the first step into extended writing in the Edexcel B Geography exam. They appear in every paper and require you to write a structured response that demonstrates both knowledge and understanding. Unlike short answer questions where bullet points might suffice, 6-mark questions demand connected prose — paragraphs that build an argument or explanation through chains of reasoning.

This lesson teaches you the PEEL structure for 6-mark answers, shows you how to build effective chains of reasoning, and provides worked examples with examiner commentary.

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What the Examiner Is Looking For

Six-mark questions are typically marked using a levels-based mark scheme rather than point-by-point:

Level	Marks	Descriptor
Level 1	1–2	Basic: simple statements with limited knowledge; may be inaccurate; no use of evidence or case studies
Level 2	3–4	Clear: some relevant knowledge and understanding; begins to use evidence; some chains of reasoning but not fully developed
Level 3	5–6	Detailed: thorough knowledge and understanding; well-developed chains of reasoning; effective use of evidence and case studies; clear and coherent

To reach Level 3, you need to:

• Show detailed knowledge (specific facts, case study detail, geographical terminology)
• Demonstrate understanding (explain why, not just what)
• Build chains of reasoning (each point links logically to the next)
• Use evidence (case studies, data, examples)
• Write clearly and coherently (paragraphs, logical structure, correct terminology)

Exam Tip: The difference between Level 2 and Level 3 is often the depth of explanation and the quality of evidence. Level 2 answers tend to make correct points but do not develop them fully. Level 3 answers take each point further, explaining the mechanism, giving specific data, and linking to geographical theory.

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The PEEL Structure

PEEL is a framework for structuring paragraphs in extended writing:

Letter	Stands For	Purpose
P	Point	State your main point or argument clearly
E	Evidence	Support your point with specific evidence (data, case study, example)
E	Explain	Explain how the evidence supports your point — show the chain of reasoning
L	Link	Link back to the question or forward to the next point

PEEL in Practice

Question: "Explain how tropical cyclones form." (6 marks)

Point: Tropical cyclones form over warm ocean water near the equator.

Evidence: The sea surface temperature must be at least 27°C to a depth of 60 metres, which is why cyclones form in tropical oceans between approximately 5° and 30° latitude during the summer and autumn months.

Explain: The warm ocean water heats the air above it, causing intense evaporation. This warm, moist air rises rapidly, creating an area of very low pressure at the surface. As the air rises, the water vapour condenses, releasing latent heat energy that fuels further uplift, creating a self-sustaining cycle of rising air, condensation and energy release.

Link: This process requires the Coriolis effect to initiate rotation, which is why cyclones do not form at the equator itself where the Coriolis effect is zero.

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Chains of Reasoning

A chain of reasoning is a sequence of logically connected statements where each point leads to the next. Chains of reasoning are what distinguish basic answers from detailed ones.

Weak Chain (Level 1–2)

"Tropical cyclones cause lots of damage. They have strong winds and heavy rain. This can destroy buildings."

Strong Chain (Level 3)

"Tropical cyclones generate sustained winds exceeding 120 km/h (Category 3+), which can strip roofs from buildings, uproot trees and bring down power lines. The loss of electricity disrupts communication, water supply and healthcare, compounding the initial damage. In developing countries such as Bangladesh, where many buildings are constructed from lightweight materials like wood and corrugated iron, the destruction is particularly severe because these structures cannot withstand high wind speeds."

The strong chain works because each sentence builds on the previous one:

1. Strong winds → 2. Damage to infrastructure → 3. Loss of services → 4. Worse in developing countries because of building materials

flowchart TD
    A["POINT: Strong winds exceeding 120 km/h"] --> B["EFFECT: Strip roofs, uproot trees, bring down power lines"]
    B --> C["CONSEQUENCE: Loss of electricity disrupts services"]
    C --> D["DEVELOPMENT: Worse in LICs due to building materials"]
    D --> E["LINK: This explains higher death tolls in developing countries"]

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Using Case Study Evidence

Case studies are essential for Level 3 answers. You should have specific facts ready for your key case studies.

What Good Case Study Evidence Looks Like