Edexcel IGCSE Science (Double Award) Biology 4SD0 — Revision Notes & Past Papers
Free Edexcel International GCSE Science (Double Award) Biology revision notes, worked examples, AI-marked practice questions and past papers — mapped to the 4SD0 specification for the 2026 exam cohort.
What is Edexcel IGCSE Science (Double Award) Biology (4SD0)?
What is Edexcel IGCSE Science (Double Award) Biology (4SD0)?
Pearson Edexcel International GCSE in Science (Double Award) (4SD0) is a linear combined-science qualification that covers biology, chemistry and physics in a single course and awards two GCSE grades. Its biology strand spans five core areas: the nature and variety of living organisms; structures and functions in living organisms; reproduction and inheritance; ecology and the environment; and the use of biological resources. The biology content is assessed externally through one written paper — Biology Paper 1.
Assessment
| Paper | Total marks | Duration | Style of questions |
|---|---|---|---|
| Biology Paper 1 (4SD0/1B) | 110 marks | 2h | Multiple-choice, short-answer, calculation and extended open-response questions; calculator allowed |
Part of the Edexcel International GCSE Science (Double Award) 4SD0 — awards two GCSE grades on a 17-grade scale from 9-9 to 1-1 using the total subject mark. The full qualification has three papers (Biology, Chemistry and Physics Paper 1), each 110 marks and weighted 33.3%, for a total of 330 marks; this Biology paper contributes 33.3%.
Source: Edexcel IGCSE Science (Double Award) 4SD0 specification
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