Combined Science
0653 · IGCSE · 6,224 questions · 50 topics · 296 papers
Every Combined Science question we hold from the 2016–2025 series, marked point by point against the official Cambridge scheme. Pick a weak topic and grind it, or work through a full series.
Topics
50- 1.1Physical quantities and measurement techniques181
- 1.2Motion243
- 1.3Mass and weight97
- 1.4Density108
- 1.5Forces218
- 1.6Energy, work and power268
- 1.7Pressure40
- 2.1Kinetic particle model of matter169
- 2.2Thermal properties and temperature125
- 2.3Transfer of thermal energy204
- 3.1General properties of waves109
- 3.2Light137
- 3.3Electromagnetic spectrum123
- 3.4Sound134
- 4.1Electrical quantities361
- 4.2Electrical circuits307
- 4.3Electrical safety95
- 5.1The Solar System25
- 5.2Stars and the Universe9
- B1Characteristics of living organisms115
- B2Cells189
- B3Movement into and out of cells137
- B4Biological molecules134
- B5Enzymes188
- B6Plant nutrition233
- B7Human nutrition245
- B8Transport in plants125
- B9Transport in animals179
- B10Diseases and immunity42
- B11Gas exchange in humans173
- B12Respiration191
- B13Coordination and response151
- B14Drugs11
- B15Reproduction281
- B16Inheritance8
- B17Variation and selection7
- B18Organisms and their environment196
- B19Human influences on ecosystems76
- C1States of matter309
- C2Atoms, elements and compounds431
- C3Stoichiometry9
- C4Electrochemistry173
- C5Chemical energetics164
- C6Chemical reactions779
- C7Acids, bases and salts228
- C8The Periodic Table274
- C9Metals238
- C10Chemistry of the environment126
- C11Organic chemistry281
- C12Experimental techniques and chemical analysis377
Paper series
26| Year | Sessions | Papers |
|---|---|---|
| 2025 | Oct/Nov · May/June · Feb/March | 35 |
| 2024 | Oct/Nov · May/June · Feb/March | 34 |
| 2023 | Oct/Nov · May/June · Feb/March | 34 |
| 2022 | Oct/Nov · May/June · Feb/March | 34 |
| 2021 | Oct/Nov · May/June · Feb/March | 34 |
| 2020 | Oct/Nov · May/June · Feb/March | 29 |
| 2019 | Oct/Nov · May/June | 30 |
| 2018 | Oct/Nov · May/June | 30 |
| 2017 | Oct/Nov · May/June | 30 |
| 2016 | Oct/Nov · May/June | 6 |
Grind 0653 properly.
Answer a real question and it comes back marked point by point: every mark awarded or lost against the official scheme, then the next rep chosen from what you missed.
5 marked answers a day, free. No card.