1Course Overview

GCSE Combined Science: Trilogy

Course code: OSC1324

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Study a combination of Biology, Chemistry and Physics at your own pace, whenever and wherever suits you, with this GCSE Combined Science: Trilogy course.

Successful completion of this course and the final exams will result in achieving 2 GCSEs.

The GCSE Combined Science: Trilogy qualification is a great stepping stone to further study at A Level, and also ideal for anyone aspiring to a career involving science such as research and development, nursing or pharmacy

Topics covered in this course include:

  • Cell biology
  • Ecology
  • The periodic table
  • Chemical changes
  • Electricity
  • Atomic structure.

See below for a full list of course content under each science discipline.

Discounts on selected courses - Until 28th May
2Course Content

Course content


1. Cell biology

2. Organisation

3. Infection and response

4. Bioenergetics

5. Homeostasis and response

6. Inheritance, variation and evolution

7. Ecology


8. Atomic structure and the periodic table

9. Bonding, structure, and the properties of matter

10. Quantitative chemistry

11. Chemical changes

12. Energy changes

13. The rate and extent of chemical change

14. Organic chemistry

15. Chemical analysis

16. Chemistry of the atmosphere

17. Using resources


18. Energy

19. Electricity

20. Particle model of matter

21. Atomic structure

22. Forces

23. Waves

24. Magnetism and electromagnetism

3Other Information


To successfully pass your GCSE Combined Science: Trilogy you will be assessed across the 3 sciences and the topics covered above. There are 6 written exam papers in all; 2 for each science. All papers contain a mix of multiple choice, structured, closed short answer, and open response questions. You must also undergo 21 practical assessments

Questions in the written exams will draw on the knowledge and understanding students have gained by carrying out the practical assessments. These questions will count for at least 15% of the overall marks for the qualification

To include exams and practical assessments in the course cost, see our GCSE Combined Science: Trilogy inc exams and practicals

Biology paper 1

What's assessed

Biology topics 1–4: Cell Biology; Organisation; Infection and response; and Bioenergetics.

How it's assessed
  • Written exam: 1 hour 15 minutes
  • Foundation and Higher Tier
  • 70 marks
  • 16.7% of GCSE.

Biology paper 2

What's assessed

Biology topics 5–7: Homeostasis and response; Inheritance, variation and evolution; and Ecology.

How it's assessed
  • Written exam: 1 hour 15 minutes
  • Foundation and Higher Tier
  • 70 marks
  • 16.7% of GCSE

Chemistry paper 1

What's assessed

Chemistry topics 8–12: Atomic structure and the periodic table; Bonding, structure, and the properties of matter; Quantitative chemistry; Chemical changes; and Energy changes.

How it's assessed
  • Written exam: 1 hour 15 minutes
  • Foundation and Higher Tier
  • 70 marks
  • 16.7% of GCSE

Chemistry paper 2

What's assessed

Chemistry topics 13–17: The rate and extent of chemical change; Organic chemistry; Chemical analysis; Chemistry of the atmosphere; and Using resources.

How it's assessed
  • Written exam: 1 hour 15 minutes
  • Foundation and Higher Tier
  • 70 marks
  • 16.7% of GCSE

Physics paper 1

What's assessed

Physics topics 18–21: Energy; Electricity; Particle model of matter; and Atomic structure.

How it's assessed
  • Written exam: 1 hour 15 minutes
  • Foundation and Higher Tier
  • 70 marks
  • 16.7% of GCSE

Physics paper 2

What's assessed

Physics topics 22–24: Forces; Waves; and Magnetism and electromagnetism

How it's assessed
  • Written exam: 1 hour 15 minutes
  • Foundation and Higher Tier
  • 70 marks
  • 16.7% of GCSE

You are responsible for booking and paying for these final exams.

Although you are assessed formally by exams, you will also be required to submit tutor-marked assignments. These are designed to help you and monitor your progress.

Course Duration

You will have 2 years from the date you receive your materials to complete the GCSE Combined Science: Trilogy course. You will be able to study at your own pace and in your own time without the pressure of tight deadlines.

Study Method

This is a distance learning course; to be studied wherever and whenever works best for you. Choose to receive your course materials online or by post - whatever best meets your needs and method of study. You'll receive full tutor support by email for the duration of the course. Please note you will need to attend an examination centre to sit the exams and practical assessments.

Course Outcome

Upon successful completion of this distance learning course and exams you will receive a GCSE in Combined Science:trilogy from awarding body AQA. This is equivalent to 2 GCSEs.

AQA provide academic qualifications taught in schools and colleges; working with around 25,000 teachers, lecturers, subject experts and academics, who help design AQA qualifications and set and mark AQA exams. 


Your Questions Answered

Is this the same qualification as a GCSE from a school or college?

Yes! The only difference is that the course is designed to be studied from home, without the need to physically attend classes. You'll receive full tutor support via email and our student support team are on hand to answer any other queries you may have.

What skills are needed to enrol onto this course?

You do not need any previous knowledge to enrol onto this course.

What is included in the cost of the course?
  • Dedicated personal tutor support
  • Dedicated student support
  • Accreditation
  • Assignment marking and feedback
  • FREE CV writing service
  • Comprehensive study guide
  • Ballpoint pen and highlighter*
  • Student study planner*
  • Student notebook*
  • Document wallet*

* Not included with the online study option

Do I have to sit an exam?

Students will also need to find a centre for the practical elements of this course. We have an arrangement with centres in Birmingham which will allow students to take practical and theoretical exams, but you may wish to find a local centre of your own choice. Students will need to contact their chosen centre directly to arrange these assessments. You can find further information on the Birmingham centre here.

Are there any additional costs?

For this particular course, examination centres charge a substantial fee to take your exams and practical assessments, which is why we thoroughly recommend you conduct further research into this before enrolling. 

What happens if I lose my course pack?

It’s not a problem. We offer a course replacement service, so if you get into trouble and your course pack is lost or damaged, our Student Support Team can provide you with a new set of materials for a one-time additional fee.

What if I still have questions?

That’s not a problem. We want to make sure you’re 100% confident about enrolling on the course and starting your study. So, just give our Student Support Team a call on 03300 563 100 and they’ll do their best to help.

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The total course fee includes a loan arrangement fee. Your initial deposit payment will be used towards this fee, any remaining fee balance will be added the loan amount.

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Our finance option is provided in partnership with AffordItNow.
For your finance application to be considered you must meet the following criteria:

  • Be over 18 years old
  • Be employed for at least 16 hours a week or retired and in receipt of a private or company pension. Certain state benefit schemes may also be considered.
  • Be a permanent UK resident with a 3 year address history
  • Have a good credit history with no late payments, debt relief orders or bankruptcies
  • Have a valid email address and can access it

Please note that meeting the above criteria does not guarantee finance acceptance.

Open Study College, 6140 Knights Court, Birmingham Business Park, Birmingham B37 7WY is a licensed credit broker, authorised and regulated by The Financial Conduct Authority (licence number 724179 with FCA).