GCSE Combined Science (Trilogy)
GCSE Combined Science covers biology, chemistry, and physics as a double award worth two GCSEs, the most common science route for UK students.
Difficulty
Moderate
Popularity
88%
Past questions
3
Study tips
5
Key Topics
Exam Format & Dates
May/June (main series); November resits for some subjects
~7 hours across 6 papers
Grades 1–9 (9 = highest)
Grade 4 = standard pass | Grade 5 = strong pass
| Section | Duration | Content | Weight |
|---|---|---|---|
| Biology Papers 1 & 2 | 2 × 1h 15m | 2 × 70 marks | 33% |
| Chemistry Papers 1 & 2 | 2 × 1h 15m | 2 × 70 marks | 33% |
| Physics Papers 1 & 2 | 2 × 1h 15m | 2 × 70 marks | 34% |
Exam Breakdown & Insights
Difficulty · Challenging
Popularity score
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Study Tips
- 1
Focus on explaining why things happen, not just what happens — exam questions reward cause-and-effect reasoning.
- 2
Use precise scientific vocabulary; examiners award marks for correct terminology used in context.
- 3
Review required practicals and data-analysis skills — experimental questions appear on nearly every paper.
- 4
Practice with past papers from your specific exam board (AQA, Edexcel, OCR) — question styles differ meaningfully.
- 5
Learn the command words (describe, explain, evaluate) — each demands a different type of answer.
Past Exam Questions
Define Biology (cells, organisms, ecology) and state the key facts a student must know, using precise scientific terminology.
Explain the mechanism behind Chemistry (bonding, reactions, analysis): describe what happens and, crucially, why it happens. Include a labelled diagram where appropriate.
Design an experiment (or interpret given data) to investigate Physics (energy, forces, waves). Identify the variables, describe the method, and explain how you would analyse the results.
Common Mistakes to Avoid
- ✕
Using vague everyday language where precise scientific terminology is required.
- ✕
Ignoring units and significant figures in calculations.
- ✕
Cramming content while neglecting experimental-design and data-analysis questions.
Official Resources
Free, official study material for GCSE Combined Science (Trilogy) — always start with the source your exam board publishes.
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