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Assessment
How Cambridge IGCSE Co-ordinated Sciences (Double Award) is assessed
It’s a double award, graded from A*A* to GG. Core students take Papers 1 and 3 and can get CC–GG. Extended students learn the Core and Supplement content, take Papers 2 and 4, and can get A*A*–GG. Everyone also takes Paper 5 or Paper 6.
Syllabus 0654, for exams in 2025–2027. The 2028–2029 syllabus has the same papers and no significant changes.
Core (grades CC–GG)
Paper 1: Multiple Choice (Core)
40 four-option multiple-choice questions
- Time
- 45 min
- Marks
- 40
- Weight
- 30%
Paper 3: Theory (Core)
Short-answer and structured questions
- Time
- 2 h
- Marks
- 120
- Weight
- 50%
Extended (grades A*A*–GG)
Paper 2: Multiple Choice (Extended)
40 four-option multiple-choice questions
- Time
- 45 min
- Marks
- 40
- Weight
- 30%
Paper 4: Theory (Extended)
Short-answer and structured questions
- Time
- 2 h
- Marks
- 120
- Weight
- 50%
Everyone takes one practical paper
Paper 5: Practical Test
Experiments in a laboratory
- Time
- 2 h
- Marks
- 60
- Weight
- 20%
Paper 6: Alternative to Practical
Written paper on experimental skills
- Time
- 1 h 30 min
- Marks
- 60
- Weight
- 20%
Your school chooses Paper 5 (a practical test) or Paper 6 (a written alternative to practical). Either is worth 20%. There is no coursework.
From the official Cambridge International syllabus, checked October 2026. Read the syllabus
Syllabus content
What’s on the Cambridge IGCSE Co-ordinated Sciences syllabus
Biology
- Characteristics of living organisms
- Cells
- Movement into and out of cells
- Biological molecules
- Enzymes
- Plant nutrition
- Human nutrition
- Transport in plants
- Transport in animals
- Diseases and immunity
- Gas exchange in humans
- Respiration
- Coordination and response
- Drugs
- Reproduction
- Inheritance
- Variation and selection
- Organisms and their environment
- Human influences on ecosystems
Chemistry
- States of matter
- Atoms, elements and compounds
- Stoichiometry
- Electrochemistry
- Chemical energetics
- Chemical reactions
- Acids, bases and salts
- The Periodic Table
- Metals
- Chemistry of the environment
- Organic chemistry
- Experimental techniques and chemical analysis
Physics
- Motion, forces and energy
- Thermal physics
- Waves
- Electricity and magnetism
- Nuclear physics
- Space physics
Where marks are lost
Common Cambridge IGCSE Co-ordinated Sciences mistakes
Running out of time on the theory paper.
Paper 3 or 4 is 2 hours for 120 marks, about a mark a minute. Move on from a stuck question and come back to it at the end.
Mixing up mitosis and meiosis.
Mitosis gives genetically identical cells for growth and repair. Meiosis halves the chromosome number to make genetically different gametes. Extended students need both.
Calculating without converting units.
Change mA to A, kJ to J and cm to m before you substitute into an equation, then give the answer in the unit the question asks for.
Six science tutors, six ways to learn
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- GraceConfidence builder
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