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Pearson Edexcel · IGCSE

Pearson Edexcel IGCSE Chemistry

Chemistry for Pearson Edexcel IGCSE (syllabus 4CH1) — what the qualification covers, and the study material Marlbridge publishes for it.

Syllabus
4CH1
Board
Pearson Edexcel
Qualification
IGCSE

At a glance

Qualification
Pearson Edexcel IGCSE Chemistry
Spec code
4CH1
Does Marlbridge teach it?
Yes
Are resources available?
Yes — 6 published
Is enrolment open?
Enquire to join — no online enrolment yet
Where was this verified?
2026-08-21, official Pearson Edexcel specification

Compiled and maintained by the Marlbridge Academic Team, checked against the official Pearson Edexcel specification on 2026-08-21.

Spotted something wrong on this page? Report an error — see the corrections policy.

The qualification

Pearson Edexcel International GCSE Chemistry (4CH1)

The Pearson Edexcel International GCSE in Chemistry enables students to acquire knowledge and understanding of chemical concepts, skills and practices. — Pearson Edexcel, official syllabus page

First teaching September 2017. Untiered. Four topics assessed across two papers.

Specifications change between examination series. Always confirm the current syllabus and assessment structure on the Pearson Edexcel syllabus page for your examination year.

Assessment structure

Linear qualification

Assessment components for Pearson Edexcel Chemistry 4CH1
Component Duration Marks Weighting Type
4CH1/1C: Chemistry Paper 1 2h 110 61.1% Written exam
4CH1/2C: Chemistry Paper 2 1h 15m 70 38.9% Written exam

Source: official Pearson Edexcel specification, verified 2026-08-28. Directly confirmed against the official PDF: linear qualification, two externally-assessed, untiered written papers taken in the same series. Paper 1 (2h, 110 marks, 61.1%) assesses only core (non-bold-referenced) content; Paper 2 (1h15, 70 marks, 38.9%) assesses all content including bold-referenced material -- the identical assessment-weighting pattern used across Pearson's International GCSE sciences suite (matches sibling Biology 4BI1 and Physics 4PH1, independently re-confirmed from 4CH1's own source PDF). First teaching September 2017, first assessment June 2019.

Assessment FAQs

How is Pearson Edexcel Chemistry (4CH1) assessed?

Pearson Edexcel Chemistry (4CH1) is assessed through: 4CH1/1C (Chemistry Paper 1) — 2h, 110 marks, 61.1% of the qualification; 4CH1/2C (Chemistry Paper 2) — 1h 15m, 70 marks, 38.9% of the qualification. It is a linear qualification. Source: official Pearson Edexcel specification, verified 2026-08-28.

The subject

Chemistry teaching and study resources, organised by level and topic.

All Chemistry at Marlbridge

Syllabus topics

The 4 topics below are the official subject content of Pearson Edexcel International GCSE Chemistry (4CH1), for the Issue 3, September 2024 examination series, reproduced from the Pearson Edexcel syllabus document.

A topic listed here is part of the syllabus. It does not mean Marlbridge has published material for it — topics with resources are marked. Marlbridge currently has resources for 2 of 4 topics.

  1. 1 Principles of chemistry

    3 Marlbridge resources

    States of matter · Elements, compounds and mixtures · Atomic structure · The Periodic Table · Chemical formulae, equations and calculations · Ionic bonding · Covalent bonding · Metallic bonding · Electrolysis

  2. 2 Inorganic chemistry

    3 Marlbridge resources

    Group 1 (alkali metals) · Group 7 (halogens) · Gases in the atmosphere · Reactivity series · Extraction and uses of metals · Acids, alkalis and titrations · Acids, bases and salt preparations · Chemical tests

  3. 3 Physical chemistry

    Syllabus topic · no resource yet

  4. 4 Organic chemistry

    Syllabus topic · no resource yet

Source: Pearson Edexcel — official International GCSE Chemistry (4CH1) specification PDF — Issue 3, September 2024 series. Verified 2026-08-21. Always check the current syllabus for your examination year.

Study resources

Revision material

Exam preparation

Chemistry at other qualifications

These are separate qualifications with different syllabuses and assessments — not different names for the same course. Check which one your school enters you for.

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