Pearson Edexcel International GCSE Science (Double Award) questions by topic
Pearson Edexcel International GCSE Science (Double Award) (4SD0) is examined through three papers, one each for biology, chemistry and physics (1B, 1C and 1P), and is awarded as two grades. ALN indexes all three and groups the questions by subject and then by specification section.
Step-by-step model answers
712 of 722 questions in this course have a model answer that walks through how to earn each mark, not just what the mark scheme lists. More are added paper by paper.
See a real example- 722 questions
- 67 past papers
- 14 exam series, June 2019 to June 2025
- Paper Analysis for 67 of 67 papers
The Free plan includes a daily allowance of questions with their mark schemes. Questions are shown only after you log in.
Topics in this course
Specification headings, with how many ALN questions are matched to each. A question can test more than one heading.
- 1 · Forces and motion97 questions
- 1 · Principles of chemistry197 questions
- 1 · The nature and variety of living organisms23 questions
- 2 · Electricity41 questions
- 2 · Inorganic chemistry129 questions
- 2 · Structure and functions in living organisms188 questions
- 3 · Physical chemistry59 questions
- 3 · Reproduction and inheritance79 questions
- 3 · Waves43 questions
- 4 · Ecology and the environment47 questions
- 4 · Energy resources and energy transfers47 questions
- 4 · Organic chemistry48 questions
- 5 · Solids, liquids and gases31 questions
- 5 · Use of biological resources52 questions
- 6 · Magnetism and electromagnetism27 questions
- 7 · Radioactivity and particles34 questions
- 8 · Astrophysics28 questions
Most-examined topics
From Paper Analysis: the sub-sections that came up in the largest share of the papers we have analysed. These are past counts, not predictions.
- NutritionStructure and functions in living organisms · in 24 of 24 analysed Paper 1B papers, about 34 marks when it appears
- InheritanceReproduction and inheritance · in 24 of 24 analysed Paper 1B papers, about 21 marks when it appears
- Feeding relationshipsEcology and the environment · in 24 of 24 analysed Paper 1B papers, about 11 marks when it appears
- Chemical formulae, equations and calculationsPrinciples of chemistry · in 23 of 23 analysed Paper 1C papers, about 61 marks when it appears
- Chemical testsInorganic chemistry · in 23 of 23 analysed Paper 1C papers, about 23 marks when it appears
The full breakdown by specification point, with the questions behind each count, is in Paper Analysis on the Basic and Premium plans.
Model answers by paper
Counts update automatically as papers and model answers are added. Recent papers appear once the exam board has released them publicly.
| Paper | With model answers | Questions | Past papers | In Paper Analysis |
|---|---|---|---|---|
| Paper 1B | 247 (100%) | 247 | 24 | 24 of 24 |
| Paper 1C | 233 (96%) | 243 | 23 | 23 of 23 |
| Paper 1P | 232 (100%) | 232 | 20 | 20 of 20 |