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SL Marine Science Grade Boundaries
Marine Science is offered only at the SL level
SL Marine Science
Minimum score needed for each grade across past sessions.
How to read this chart
Each point is the typical published boundary for that exam session. Hover or tap a point to see the timezone range.
Read the plain-language results guide →| SL Marine Science | |||||||
|---|---|---|---|---|---|---|---|
| Exam sessionSession | Minimum mark for gradeMinimum mark | ||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | |
| M25 TZ0 | 0 | 14 | 28 | 39 | 48 | 58 | 66 |
| M24 TZ0 | 0 | 14 | 28 | 40 | 49 | 58 | 68 |
| M23 TZ0 | 0 | 15 | 32 | 43 | 52 | 61 | 70 |
| M22 TZ0 | 0 | 14 | 28 | 39 | 47 | 55 | 64 |
| M21 TZ0 | 0 | 9 | 17 | 29 | 38 | 49 | 62 |