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How to Answer GCSE Science 6-Mark Questions: A Step-by-Step Guide

Oct 22
2 min read

Six-mark questions can feel daunting, even when a student knows the science. The challenge is often knowing what to include, how much detail to give and how to structure the answer.


The good news? Exam technique can be practised. 


Understanding the exam board your child is studying can also help you know what to expect. Read our guide to AQA, Edexcel or OCR? A Parent’s Guide to GCSE Science Exam Boards.


Here are some simple ways to improve.


1. Read the question carefully

Before writing, check exactly what the question is asking.

Look out for command words such as:

  • Describe – say what happens.

  • Explain – give reasons why or how.

  • Compare – identify similarities and differences.

  • Evaluate – weigh up evidence and reach a conclusion.


2. Take a moment to plan

A quick plan can stop answers becoming muddled. Jot down:

  • The main scientific points.

  • Key terms you need to include.

  • How your points link together.

  • Any information from a graph, table or diagram that could help.


3. Explain your points

Simply listing facts may not be enough. Students need to show they understand the science.

For each point, ask:

  • Have I explained why or how it happens?

  • Have I used the correct scientific terminology?

  • Have I made the link between cause and effect clear?


4. Use the information provided

If the question includes data, a graph or a diagram, use it where relevant. Avoid giving a generic answer when the question expects you to refer to specific information.


5. Check your answer

Before moving on, ask yourself:

  • Have I answered the question?

  • Have I followed the command word?

  • Have I explained my points clearly?

  • Have I included a conclusion if the question asks me to evaluate?


Remember: a longer answer isn't automatically a better answer. Focus on relevant, clearly explained science rather than writing as much as possible.


Six-mark questions are just one area where exam technique matters. Find out more in our guide to GCSE Science Exam Technique: How to Stop Losing Easy Marks


Helping your child improve GCSE Science exam technique

When reviewing a practice paper, ask your child: “Did you not know the science, or did you know it but struggle to explain it?”


That distinction can help identify what needs practising.


Looking for more ways to help your child prepare for GCSE Science? Explore our other GCSE Science revision and exam technique guides here:


At Octopus Education in Cobham, Surrey, our small-group GCSE Science programmes focus on both understanding the content and developing the exam technique needed to communicate it effectively.


To find out more feel free to contact us.

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