O Level5129_w25_qp_31Written

Combined Science 5129/31 — October/November 2025

Paper 3 Experimental Skills and Investigations (variant 1)

Question paper Mark scheme

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For the whole October/November 2025 seriesGrade thresholds

Grade boundaries for 5129/31

Grade	A	B	C	D	E
Marks	25	20	15	12	9

Minimum raw mark out of 40, from Cambridge's October/November 2025 grade thresholds. Cambridge sets A* only for the whole subject.

Also in October/November 20255129/11Paper 1 Multiple Choice 5129/12Paper 1 Multiple Choice 5129/21Paper 2 Theory 5129/22Paper 2 Theory 5129/32Paper 3 Experimental Skills and Investigations

Paper 3 Experimental Skills and Investigations — other years5129/32October/November 2025 5129/31May/June 2025 5129/32May/June 2025 5129/31October/November 2024 5129/32October/November 2024 5129/31May/June 2024 5129/32May/June 2024 5129/32October/November 2023 All Combined Science papers →

O Level Combined Science 5129/31 October/November 2025 — question paper & mark scheme (5129_w25_qp_31) | AssessPro