IGCSE Science - Combined (0653) — real past-paper questions, marked by AI
Combined Science is the single-award route through biology, chemistry and physics: one IGCSE grade for all three sciences, built from Papers 1 and 2 multiple choice, Papers 3 and 4 theory, and Paper 5 practical or Paper 6 alternative to practical. Practical skills is the single biggest topic tag on the hub, reflecting how much of the mark scheme rewards technique — reading a scale correctly, describing a fair test — over recall alone.
The hub holds 3,252 real 0653 questions from 85 papers set between 2023 and 2025. Practical skills leads the topic table with 32 questions, and its ATP variant a further 12, with forces, electrolysis, transport in humans and organic chemistry also among the most-examined areas. Type your answer and the AI examiner marks it point by point against the real Cambridge scheme, showing which idea earned the mark across biology, chemistry or physics content within the same paper.
Sweep practical-skills questions on their own, then move to full timed papers that mix all three sciences the way the real exam does. Free, with no signup and no card needed.
New: How IGCSE Combined Science (0653) is really marked — command words, examiner-report findings and revision strategy.
Past papers by year
2025
| Paper | Session | Questions |
|---|---|---|
| Paper 11 | May–June 2025 | 40 |
| Paper 12 | May–June 2025 | 40 |
| Paper 13 | May–June 2025 | 40 |
| Paper 21 | May–June 2025 | 40 |
| Paper 22 | May–June 2025 | 40 |
| Paper 23 | May–June 2025 | 40 |
| Paper 31 | May–June 2025 | 9 |
| Paper 32 | May–June 2025 | 9 |
| Paper 33 | May–June 2025 | 9 |
| Paper 41 | May–June 2025 | 9 |
| Paper 42 | May–June 2025 | 9 |
| Paper 43 | May–June 2025 | 9 |
| Paper 51 | May–June 2025 | 4 |
| Paper 52 | May–June 2025 | 4 |
| Paper 61 | May–June 2025 | 4 |
| Paper 62 | May–June 2025 | 4 |
| Paper 63 | May–June 2025 | 4 |
2024
| Paper | Session | Questions |
|---|---|---|
| Paper 11 | May–June 2024 | 40 |
| Paper 12 | May–June 2024 | 40 |
| Paper 13 | May–June 2024 | 40 |
| Paper 21 | May–June 2024 | 40 |
| Paper 22 | May–June 2024 | 40 |
| Paper 23 | May–June 2024 | 40 |
| Paper 31 | May–June 2024 | 9 |
| Paper 32 | May–June 2024 | 9 |
| Paper 33 | May–June 2024 | 9 |
| Paper 41 | May–June 2024 | 9 |
| Paper 42 | May–June 2024 | 9 |
| Paper 43 | May–June 2024 | 9 |
| Paper 51 | May–June 2024 | 4 |
| Paper 52 | May–June 2024 | 4 |
| Paper 61 | May–June 2024 | 4 |
| Paper 62 | May–June 2024 | 4 |
| Paper 63 | May–June 2024 | 4 |
| Paper 11 | October–November 2024 | 40 |
| Paper 12 | October–November 2024 | 40 |
| Paper 13 | October–November 2024 | 40 |
| Paper 21 | October–November 2024 | 40 |
| Paper 22 | October–November 2024 | 40 |
| Paper 23 | October–November 2024 | 40 |
| Paper 31 | October–November 2024 | 9 |
| Paper 32 | October–November 2024 | 9 |
| Paper 33 | October–November 2024 | 9 |
| Paper 41 | October–November 2024 | 9 |
| Paper 42 | October–November 2024 | 9 |
| Paper 43 | October–November 2024 | 9 |
| Paper 51 | October–November 2024 | 4 |
| Paper 52 | October–November 2024 | 4 |
| Paper 53 | October–November 2024 | 4 |
| Paper 61 | October–November 2024 | 4 |
| Paper 62 | October–November 2024 | 4 |
| Paper 63 | October–November 2024 | 4 |
2023
| Paper | Session | Questions |
|---|---|---|
| Paper 11 | May–June 2023 | 40 |
| Paper 12 | May–June 2023 | 40 |
| Paper 13 | May–June 2023 | 40 |
| Paper 21 | May–June 2023 | 40 |
| Paper 22 | May–June 2023 | 40 |
| Paper 23 | May–June 2023 | 40 |
| Paper 31 | May–June 2023 | 9 |
| Paper 32 | May–June 2023 | 9 |
| Paper 33 | May–June 2023 | 9 |
| Paper 41 | May–June 2023 | 9 |
| Paper 42 | May–June 2023 | 9 |
| Paper 43 | May–June 2023 | 9 |
| Paper 51 | May–June 2023 | 4 |
| Paper 52 | May–June 2023 | 4 |
| Paper 61 | May–June 2023 | 4 |
| Paper 62 | May–June 2023 | 4 |
| Paper 63 | May–June 2023 | 4 |
| Paper 11 | October–November 2023 | 40 |
| Paper 12 | October–November 2023 | 40 |
| Paper 13 | October–November 2023 | 40 |
| Paper 21 | October–November 2023 | 40 |
| Paper 22 | October–November 2023 | 40 |
| Paper 23 | October–November 2023 | 40 |
| Paper 31 | October–November 2023 | 9 |
| Paper 32 | October–November 2023 | 9 |
| Paper 33 | October–November 2023 | 9 |
| Paper 41 | October–November 2023 | 9 |
| Paper 42 | October–November 2023 | 9 |
| Paper 43 | October–November 2023 | 9 |
| Paper 51 | October–November 2023 | 4 |
| Paper 61 | October–November 2023 | 4 |
| Paper 62 | October–November 2023 | 4 |
| Paper 63 | October–November 2023 | 4 |
Practise IGCSE Science - Combined by topic
- Practical skills (96 questions)
- Motion, forces and energy (53 questions)
- Electricity and magnetism (38 questions)
- Waves (32 questions)
- Human nutrition (23 questions)
- Acids, bases and salts (22 questions)
- Organisms and their environment (21 questions)
- Organic chemistry (21 questions)
- Reproduction (20 questions)
- Thermal physics (20 questions)
- Plant nutrition (19 questions)
- The Periodic Table (18 questions)
- Metals (18 questions)
- Transport in animals (17 questions)
- Electrochemistry (16 questions)
- Experimental techniques and chemical analysis (16 questions)
- Chemical reactions (15 questions)
- Organisation of the organism (cells) (12 questions)
- Transport in plants (11 questions)
- States of matter (11 questions)
- Atoms, elements and compounds (11 questions)
- Enzymes (10 questions)
- Space physics (10 questions)
- Chemical bonding (9 questions)
- Chemical energetics (9 questions)
- Gas exchange in humans (8 questions)
- Stoichiometry (8 questions)
- Characteristics and classification of living organisms (6 questions)
- Movement into and out of cells (5 questions)
- Human influences on ecosystems (5 questions)
Frequently asked questions
Which 0653 papers and years are covered?
Every May–June and October–November session from 2023 to 2025 — 85 papers across Papers 1 to 6, with every variant included.
What is the difference between 0653 and 0654?
0653 Combined Science is the single-award route — one IGCSE grade covering biology, chemistry and physics. 0654 Co-ordinated Sciences is the double-award twin, reporting two IGCSE grades for the same three-science content.
How does the AI marking work across three sciences?
The AI examiner checks each answer against the real Cambridge mark scheme for that specific question, whichever science it draws on, awarding marks point by point and showing the accepted wording you needed.
What do Papers 1 to 6 mean in 0653?
Papers 1 and 2 are multiple choice at Core and Extended tier, Papers 3 and 4 are theory papers, Paper 5 is the practical test, and Paper 6 is the alternative to practical.
Is it really free?
Yes — every question, mark scheme and AI marking run is free, with no signup and no card details.
Are these official Cambridge papers?
The questions are transcribed from real Cambridge papers and marked against the real mark schemes, which remain © Cambridge International. Cambridge Papers is an independent study tool, not affiliated with or endorsed by Cambridge.