Pearson Edexcel International GCSE Science (Single Award) questions by topic
Pearson Edexcel International GCSE Science (Single Award) (4SS0) covers biology, chemistry and physics, with one paper for each (1B, 1C and 1P), and is awarded as a single grade. ALN groups its questions by science and specification section, so you can revise one science at a time.
Step-by-step model answers
170 of 170 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- 170 questions
- 24 past papers
- 8 exam series, June 2019 to June 2025
- Paper Analysis for 24 of 24 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 motion15 questions
- 1 · Principles of chemistry42 questions
- 1 · The nature and variety of living organisms6 questions
- 2 · Electricity12 questions
- 2 · Inorganic chemistry21 questions
- 2 · Structure and functions in living organisms32 questions
- 3 · Physical chemistry14 questions
- 3 · Reproduction and inheritance11 questions
- 3 · Waves10 questions
- 4 · Ecology and the environment8 questions
- 4 · Energy resources and energy transfers9 questions
- 4 · Organic chemistry11 questions
- 5 · Solids, liquids and gases9 questions
- 5 · Use of biological resources9 questions
- 6 · Magnetism and electromagnetism6 questions
- 7 · Radioactivity and particles11 questions
- 8 · Astrophysics9 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 8 of 8 analysed Paper 1B papers, about 14 marks when it appears
- Chemical testsInorganic chemistry · in 8 of 8 analysed Paper 1C papers, about 14 marks when it appears
- Ionic bondingPrinciples of chemistry · in 8 of 8 analysed Paper 1C papers, about 12 marks when it appears
- InheritanceReproduction and inheritance · in 8 of 8 analysed Paper 1B papers, about 11 marks when it appears
- EnergeticsPhysical chemistry · in 8 of 8 analysed Paper 1C papers, about 11 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 | 55 (100%) | 55 | 8 | 8 of 8 |
| Paper 1C | 56 (100%) | 56 | 8 | 8 of 8 |
| Paper 1P | 59 (100%) | 59 | 8 | 8 of 8 |