Cambridge IGCSE · 分析与预测
2025 Cambridge IGCSE Science - Combined (0653) 历年真题分析与预测
An analysis of the October/November 2025 Cambridge IGCSE Combined Science (0653) papers 13, 23, 33, 43, and 63. This series presents a balanced assessment across Biology, Chemistry, and Physics, with emphasis on practical skills, unit conversions, and fundamental chemical bonding.
更新: 2026年6月13日
分析模拟试题
难度 3.2/5
总分
160
时间
180 分钟
最高频考点
—
分卷
卷二: 選擇題 (Extended): 40 分 · 45 分钟Paper 4: Theory (Extended): 80 分 · 75 分钟Paper 6: Alternative to Practical: 40 分 · 60 分钟
考官重点
官方报告整理常见失分点
- Failing to convert time from minutes to seconds before substituting into the equation Q = It.
- Using the wrong acceleration of free fall constant (or omitting it) during weight and force calculations (using m instead of mg).
- Drawing non-linear axes or inconsistent scales on graph plotting questions in Paper 6.
- Forgetting to write the charges on ions when completing structured ionic bonding diagrams.
常见误区
- Believing that any organic molecule with carbon and hydrogen is a hydrocarbon, ignoring the presence of other atoms like oxygen or chlorine.
- Confusing transpiration with evaporation generally, rather than defining it specifically as loss of water vapour from stomata.
失分原因
- In complete combustion equations, failing to balance oxygen diatomic molecules correctly.
- Losing the final unit mark in calculations (such as density g/cm3 or resistance ohms).
- Inability to link the rate of reaction to increased surface area / higher frequency of successful collisions in particle theory explanations.
等级分数线估算
更新: 2026年6月13日
| 等级 | 分数 | 百分比 |
|---|---|---|
| A* | 150/200 | 75% |
| A | 126/200 | 63% |
| B | 102/200 | 51% |
| C | 78/200 | 39% |
| D | 68/200 | 34% |
| E | 58/200 | 29% |
Official grade boundaries published by Cambridge IGCSE grade thresholds (official).
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