Marine Science Unknown–Present

School-based Syllabus
Syllabus
Timezone / Session

Paper 1

50%

/ 65

Paper 2

30%

/ 35

Internal Assessment

20%

/ 24

Predicted Grade
5
Using the M25 TZ0 grade boundary
Percentile Beats 72.7% of M25 test takers
Weighted score
49%
To Grade 6
9 marks
M25 TZ0 grade boundaries
1234567
0-13 14-27 28-38 39-47 48-57 58-65 66-100

Next grade

Grade 5 → 6
Best move +10 marks on Paper 2 to reach Grade 6
Grade outlook & more options

Compare assessments

Assessment +1 mark To Grade 6
Paper 1 +0.77% overall +11
Paper 2 Best +0.86% overall +10
Internal Assessment +0.83% overall +10
How these recommendations work

Global Grade Distribution

May 2025 · 429 students

Your result Grade 5
Typical result Grade 4
How to read this chart

Each bar is the percentage of students who finished with that grade.

Your predicted grade is outlined in blue.

The typical result rounds the published session average of Grade 3.8 to the nearest whole grade.

Read the plain-language results guide →
SL Marine Science Grade Distribution
Exam SessionSession Total studentsStudents Average gradeAvg Grade (%)%
N1234567
No results found

Historical Grade Boundaries

Compare official grade thresholds across examination sessions.

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 selected
SL boundary history
SL Marine Science
Exam sessionSession Minimum mark for gradeMinimum mark
1234567
No results found
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About sessions and timezones Optional reference
TZ0: Worldwide or combined TZ1 / TZ2 / TZ3: Different paper variants

Choose the matching variant Use the boundary label supplied with your paper or results. Ask your coordinator when it is unclear.

Match the syllabus Compare sessions from the same course version whenever possible.

Treat 2020–2022 carefully Examination arrangements changed during the pandemic, so those sessions may not be directly comparable.

Compare like with like May and November sessions have different student groups. A past pattern does not determine a future boundary.

Read the session and timezone guide