Pearson Edexcel IGCSE Chemistry specification
The specification (4CH1) is Pearson Edexcel's own description of the Chemistry course: what you can be examined on, how the exams are set out and how they are marked. The link below opens the board's PDF on qualifications.pearson.com, so you always get its current version.
Open the 4CH1 specification (PDF) (opens qualifications.pearson.com in a new tab)Everything for Pearson Edexcel IGCSE Chemistry, with the past papers, grade boundaries and the notes and flashcards people have shared.
How Pearson Edexcel IGCSE Chemistry is examined
From Edexcel's grade boundaries for June 2026. Some boards list every optional paper or time-zone variant, so you sit only the ones for your route; the specification says which.
| Paper | Marks | Next exam |
|---|---|---|
| Paper 1C4CH1/1C | 110 | Monday 9 November 2026, morning |
| Paper 1CR4CH1/1CR | 110 | Tuesday 18 May 2027, afternoon |
| Paper 2C4CH1/2C | 70 | Monday 16 November 2026, morning |
| Paper 2CR4CH1/2CR | 70 | Tuesday 15 June 2027, morning |
Turn a mark into a grade · Edexcel IGCSE exam dates · Extra time and access arrangements
Revising from the Chemistry specification
Work through the specification's content list and mark what you are unsure of, then practise those parts with Edexcel's past papers and read your marks against the same year’s grade boundaries.
Common questions
Where can I find the Edexcel IGCSE Chemistry specification?
The link on this page opens Pearson Edexcel's own copy of the Chemistry specification (4CH1), a PDF on its website, so you always get the current version. We link to it rather than keep a copy.
What is in the Chemistry specification?
A specification is the board's own description of the course: the content you can be examined on, how the exams are set out and how they are marked. It is the most useful single document to revise from, because every exam question has to come from it.
How is Edexcel IGCSE Chemistry examined?
According to Edexcel's grade boundaries for June 2026, the course is examined in 4 papers, worth 360 marks in all. The specification has the full details, and the past papers show what the questions look like.
Can I make practice questions from the specification?
Yes. cookie can make exam-style questions from a specification and mark your answers, so you can practise the parts you are least sure of once you run out of past papers.
More specifications: every IGCSE specification we link.
cookie is independent and is not affiliated with or endorsed by any exam board. Every paper here is a link to the board's own copy on its own website, and the papers belong to the boards that set them. If a link has stopped working, the board's own past paper page is linked on each course.