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How to answer 6-mark science questions

Long-answer science questions are marked by level, not by ticks. Here is a simple plan to get into the top level.

Year 10–112 min readUpdated 30 September 2026

Most GCSE science papers include one or two 6-mark questions. Many students dread them, but they follow a clear pattern. With a simple plan, you can pick up most of the marks.

How they are marked

Six-mark questions are usually marked by levels, not one tick per fact. For example:

So the examiner is looking at the whole answer. Ten random facts will not get full marks. Six well-ordered, linked points will.

A five-step plan

1. Read the command word. Is it describe, explain, compare or evaluate? Each needs a different kind of answer.

2. Underline what the question is really about. For example: "Explain how the structure of the small intestine helps absorption." You must link structure to absorption, not just list features.

3. Jot down a quick plan. Write 5 or 6 key words in the margin. This takes one minute and stops you missing points.

4. Write in a logical order. For a method, go step by step. For a process, go from start to finish. For "explain", use because, so and which means.

5. Finish with a conclusion if needed. For evaluate or compare, end with a clear judgement.

Example: a required practical

Describe a method to find how temperature affects the rate of a reaction.

A strong answer includes:

Common mistakes

In short

Read the command word, plan quickly, write in a clear order and link your points. Six-mark questions reward clear thinking more than long answers.

Notes, tests and papers for your exam board

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