Cambridge IGCSE Co-ordinated Sciences (Double Award) (0654)
A double-award qualification combining Biology, Chemistry and Physics. This is syllabus 0654, not Combined Science 0653.
2025–2027 examinations
Course structure and assessment routes
- Study all three sciences. Core: Papers 1 and 3 plus either Paper 5 or 6; grades CC–GG.
- Extended: Papers 2 and 4 plus either Paper 5 or 6; grades A*A*–GG. Extended includes Core and Supplement.
Main syllabus content
- Biology: B1–B19, from living organisms to ecosystems
- Chemistry: C1–C12, from matter to experimental analysis
- Physics: P1–P6, from motion to space physics
Use Syllabus for the topic checklist. Where the qualification offers options, follow your chosen route rather than treating every option as compulsory.
0654 assessment structure
Use the route above to identify which components you take. Marks below are raw marks; the stated weightings determine their contribution to the award.
Paper 1
Multiple Choice (Core)
- Duration
- 45 minutes
- Marks
- 40
- Weighting
- 30% of Core
Paper 3
Theory (Core)
- Duration
- 2 hours
- Marks
- 120
- Weighting
- 50% of Core
Paper 2
Multiple Choice (Extended)
- Duration
- 45 minutes
- Marks
- 40
- Weighting
- 30% of Extended
Paper 4
Theory (Extended)
- Duration
- 2 hours
- Marks
- 120
- Weighting
- 50% of Extended
Paper 5
Practical Test
- Duration
- 2 hours
- Marks
- 60
- Weighting
- 20%; choose Paper 5 or 6
Paper 6
Alternative to Practical
- Duration
- 1 hour 30 minutes
- Marks
- 60
- Weighting
- 20%; choose Paper 5 or 6
Key assessment information
- All three selected papers are externally assessed. Its theory and practical timings and marks differ from the separate-science qualifications.
Official sources and verification
Checked 2026-09-04 against the official 0654 syllabus/specification (PDF). 2025–2027 examinations.
Source PDF pages: 9, 10. PDF page positions may differ from printed page numbers.
IGCSEfy is an independent study aid. Check the full official document and your exam-paper instructions, especially exam-year options, equipment and centre arrangements. Older archive papers may follow an earlier syllabus.