Your grade journey
Cambridge IGCSE Physical Sciencegrade boundaries
Explore official boundaries. See where your marks take you.
06522 official seriesMaximum mark 200
Exam series
Papers
Flight log / November 2025
Grade boundaries
OfficialExtended · 21 / 41 / 51 · Out of 200
Grade A*
148
marks / 200
Grade A
123
marks / 200
Grade C
73
marks / 200
Grade E
53
marks / 200
All grade thresholds
| Grade | Minimum mark | Mark range | % of maximum |
|---|---|---|---|
| A* | 148 | 148–200 | 74% |
| A | 123 | 123–147 | 62% |
| B | 98 | 98–122 | 49% |
| C | 73 | 73–97 | 37% |
| D | 63 | 63–72 | 32% |
| E | 53 | 53–62 | 27% |
| F | 42 | 42–52 | 21% |
| G | 31 | 31–41 | 16% |
| U | Below 31 | ||
These boundaries apply to this exam series and route.
How these boundaries have changed
Extended · Papers 21, 41, 51, every official series. Boundaries move each year with how hard the papers were.
| Series | A* | A | B | C | D | E | F | G |
|---|---|---|---|---|---|---|---|---|
| November 2025 | 148-8 | 123-5 | 98-2 | 73+1 | 63+1 | 53+1 | 42+1 | 31+1 |
| November 2024 | 156 | 128 | 100 | 72 | 62 | 52 | 41 | 30 |
+ higher than the same series a year earlier (harder to reach) · − lower (easier to reach).
Grade calculator
November 2025 · Extended · Papers 21, 41, 51
Enter your total mark to see your grade.
123 marks needed for Grade A.
Paper-by-paper entry isn’t available here: this subject's papers are weighted and the board doesn't publish the weighting factors in its boundary documents. Use your total subject mark from your results slip.
Frequently asked questions
What did you need for a grade E in Physical Science in November 2025?
In November 2025, grade E in Cambridge IGCSE Physical Science (0652) needed 53 out of 200 on extended · papers 21, 41, 51; 52 out of 200 on extended · papers 21, 41, 61; 71 out of 200 on core · papers 11, 31, 51.
What was the boundary for a grade A* in November 2025?
148 out of 200 on extended · papers 21, 41, 51; 151 out of 200 on extended · papers 21, 41, 61 — the top grade for IGCSE Physical Science in November 2025.
How is my grade worked out?
Your marks from each paper are added up (scaled by a weighting factor where papers count differently) to give your subject mark, which is then compared with the boundaries. Your grade comes from the total — not from each paper separately.
When will the next boundaries be published?
Cambridge publishes grade boundaries on results day for each series. Until then, any figures shown for a future series are Starley estimates, clearly labelled, based on recent years.