How Many IGCSE Combined Science Papers Are There?

If you’re preparing for IGCSE Combined Science, one of the first things you’ll need to know is how many exam papers you actually need to sit. Science qualifications may seem confusing because there are so many different papers, tiers, and exam formats across Biology, Chemistry, and Physics.

The good news is that you only need to focus on the papers for your own Combined Science qualification and exam board.

Once you understand the exam structure that applies to you, your revision will be much easier to organise. So this guide explains how many IGCSE Combined Science papers there are, how the exams are structured, and what to expect from each exam board. The revision part is down to you, although we have some tips for that, too!

Key Takeaways

• Cambridge IGCSE Combined Science uses three assessment papers

• OxfordAQA IGCSE Combined Science Double Award uses three written papers, one for each science

• Combined Science qualifications assess Biology, Chemistry, and Physics together within a single course

• Many papers include a mixture of factual recall, scientific reasoning, calculations, and practical-skills questions

IGCSE Combined Science Assessment Structure Explained

IGCSE Combined Science qualifications are linear courses, which means you take all of your exams at the end of the course rather than completing modules throughout the year.

The course combines key topics from Biology, Chemistry, and Physics into one qualification. This means you will be revising content from all three sciences at the same time, so staying organised throughout the course is important.

Across both Cambridge and OxfordAQA exam boards, students study areas such as:

• cells and human biology

• chemical reactions and bonding

• electricity and energy

• forces and motion

• ecology and the environment

• atomic structure and particles

Most assessments are completed through written examination papers. However, Cambridge IGCSE Combined Science also includes practical assessment components through either a practical test or an Alternative to Practical paper.

There is no coursework or controlled assessment, so your final grade is based entirely on your exam performance.

You can explore the full content of the course in our guide to IGCSE Combined Science topics.

How Many Exam Papers Are There For IGCSE Combined Science?

The total number of IGCSE Combined Science papers you sit depends on your exam board. Both Cambridge and OxfordAQA use three assessment papers overall, but the way those papers are organised is quite different.

Cambridge IGCSE Combined Science uses a mixture of multiple-choice, theory, and practical assessment papers within a single qualification. OxfordAQA IGCSE Combined Science Double Award takes a more traditional approach, using three separate written papers: one for Biology, one for Chemistry, and one for Physics.

This means the revision experience can feel quite different depending on which qualification you are studying.

Across both exam boards, the papers include a mixture of:

• multiple-choice questions

• structured written questions

• calculations

• practical-skills questions

• extended scientific reasoning

Breakdown by Exam Board

Cambridge IGCSE Combined Science (0653) – Core

Additional details for Core tier:

• Grades available: C–G

• Covers Biology, Chemistry, and Physics topics

• Practical skills are assessed through either practical work or written practical questions

Cambridge IGCSE Combined Science (0653) – Extended

Additional details for Extended tier:

• Grades available: A*–E

• Covers Biology, Chemistry, and Physics topics

• Practical and investigative skills are assessed alongside scientific knowledge

OxfordAQA IGCSE Combined Science Double Award (9204)

Additional details:

• Students receive two grades on the 9–1 scale

• All papers are written examinations

• Questions assess scientific knowledge, calculations, data analysis, and practical understanding

• Practical skills are assessed through written exam questions

Tips for Preparing for IGCSE Combined Science Papers

Revise all three sciences regularly

IGCSE Combined Science includes content from Biology, Chemistry, and Physics, so it is important to keep revising all three subjects throughout the course.

While it can be tempting to focus only on your strongest science, keeping your revision balanced will prevent you neglecting weaker topics and then cramming at the last minute when it’s too late to ask for further help in understanding them.

Get advice on when to start revising for IGCSEs for help with planning your overall revision schedule. And we also have lots of IGCSE revision advice and strategies to help you balance that sea of information.

Practise scientific calculations carefully

Many students lose marks in science exams due to calculation errors rather than misunderstanding the science itself, especially in Physics and Chemistry questions.

Make sure this doesn’t happen to you by practising:

• rearranging equations

• using units correctly

• showing clear working

• rounding answers appropriately

Use past papers from your own exam board

Cambridge and OxfordAQA structure their exams quite differently.

For example, Cambridge includes multiple-choice and practical assessment papers, while OxfordAQA uses three longer written papers. Practising past papers from your own exam board helps you become familiar with the exact style of questions you will face in the exam.

Build confidence with practical skills

Even when practical work is assessed through written questions, you still need to understand:

• experimental methods

• variables

• graph skills

• scientific investigations

• analysing results

Many of these types of questions test your ability to apply practical knowledge in unfamiliar situations.

Practise under timed conditions

Combined Science exams can feel challenging because you are revising a large amount of content across three sciences. Timing can become an issue. 

Work around this with timed practice on exam questions and even full papers. This can help you improve:

• exam pacing

• question interpretation

• extended written answers

• confidence under pressure

Frequently Asked Questions

Are all IGCSE Combined Science papers compulsory?

Yes. Students must complete all papers required for their tier and exam board.

For example, Cambridge students complete all three required papers, while OxfordAQA students sit all three written science papers.

Do all exam boards include practical assessment?

No. Cambridge includes either a practical test or an Alternative to Practical paper as part of the qualification.

OxfordAQA assesses practical skills through written exam questions rather than separate practical exams.

Can I resit individual IGCSE Combined Science papers?

No. These qualifications are linear, which means students usually retake the full qualification rather than individual papers.

Resit rules can vary depending on your exam centre and exam board policies.

Conclusion

Although IGCSE Combined Science can seem like a lot to manage at first, understanding how your exam papers are organised makes revision much easier to plan. Once you know which papers you’re sitting, how they are assessed, and what each one focuses on, the whole course usually starts to feel much more manageable.

Whether you are studying Cambridge or OxfordAQA, success in Combined Science comes from staying organised, revising all three sciences regularly, and getting plenty of practice with exam questions and practical-skills tasks.

If you want extra support with revision, topic summaries, or exam-style questions, explore the full range of Save My Exams’ IGCSE Science resources to help you prepare with confidence. 97% of Save My Exams members report getting better grades. Start revising your IGCSEs and ace your exam preparation, with everything in one place.

Good luck with your revision!

References:

• OxfordAQA International GCSE Combined Science Double Award (9204) (opens in a new tab)

• Cambridge IGCSE Combined Science (0653) (opens in a new tab)