IGCSE Chemistry
Complete Exam Preparation Hub
Master Edexcel (4CH1) and Cambridge CIE (0620/0971) Chemistry with Apeiron's expert tutors, practical skills mastery, and proven track record.
Why Apeiron for IGCSE Chemistry?
We build confident chemists who excel in theory, practicals, and calculations.
All our Chemistry teachers hold degrees in Chemistry or related fields, with extensive lab experience and IGCSE examiner insight.
Full coverage of core practicals, alternativeโtoโpractical preparation, and data analysis techniques.
Stepโbyโstep support for mole calculations, titration maths, energetics, and yield problems.
All topics are consolidated with real exam questions, mark scheme analysis, and examiner feedback.
๐ Edexcel IGCSE Chemistry (4CH1)
The Edexcel IGCSE in Chemistry builds knowledge of chemical principles, practical techniques, and problemโsolving in theoretical and realโworld contexts. The qualification is linear, requiring both papers to be taken in the same exam series.
๐ Assessment Structure
Code: 4CH1/1C | 2 hours | 110 marks | ~61% of grade
โข Questions drawn from the full syllabus[reference:0]
โข Multiple-choice, short-answer, calculations, and extendedโresponse questions
โข Calculator allowed
Code: 4CH1/2C | 1 hour 15 minutes | 70 marks | ~39% of grade
โข Mixed question types testing deeper understanding
โข Higher demand questions for A*/A candidates
โข Calculators permitted
States of matter, atomic structure, Periodic Table trends, ionic/covalent/metallic bonding, chemical formulae, mole calculations, stoichiometry, gas volumes, concentration, yield.
Reactivity series, displacement, corrosion, extraction of metals, acids/bases/salts, pH, titration, solubility rules, preparation of salts, metal properties and alloys.
Exothermic/endothermic reactions, calorimetry, enthalpy change, bond energies, reaction rates, collision theory, catalysts, reversible reactions and equilibrium.
Hydrocarbons, homologous series, alkanes and alkenes, fractional distillation of crude oil, cracking, combustion, alcohols, carboxylic acids, esters and polymers.
๐ Pro tip from Apeiron tutors: Always show working in calculations โ method marks save grades.
Source: Pearson Edexcel past papers, examiner reports & specification (2019โ2025).[reference:2]
๐ฆ Cambridge CIE IGCSE Chemistry (0620 & 0971)
Cambridge IGCSE Chemistry encourages learners to understand the technological and environmental importance of chemistry. The syllabus promotes scientific enquiry, practical investigation and analytical thinking across 12 core topics.
๐ Assessment Structure
- Paper 1 (MCQ): 45 min, 40 marks, 30%
- Paper 3 (Theory): 1h 15min, 80 marks, 50%
- Paper 5 (Practical) or Paper 6 (Alternative): 1h 15min / 1h, 40 marks, 20%
- Paper 2 (MCQ): 45 min, 40 marks, 30%
- Paper 4 (Theory): 1h 15min, 80 marks, 50%
- Paper 5 (Practical) or Paper 6 (Alternative): 1h 15min / 1h, 40 marks, 20%
Kinetic particle theory, changes of state, diffusion, gas laws.
Atomic structure, Periodic Table, bonding (ionic, covalent, metallic).
Chemical equations, mole concept, reacting masses, yield, limiting reagent.
Electrolysis, electrode reactions, electroplating, energy transfer.
Exothermic/endothermic reactions, bond energy, energy level diagrams.
Rate of reaction, collision theory, catalysts, reversible reactions and equilibrium.
Properties, pH scale, neutralisation, titration, salt preparation.
Group properties (alkali metals, halogens), trends, transition elements.
Reactivity series, extraction, corrosion, alloys, recycling.
Water purification, air composition, pollutants, greenhouse gases.
Hydrocarbons, alkanes, alkenes, alcohols, carboxylic acids, polymers.
Measurement, separation methods, chromatography, data analysis.
โ๏ธ Exam Board Comparison: Edexcel vs Cambridge CIE
๐จโ๐ฌ Meet Your Chemistry Tutors
Samah Khalid Gungun
IGCSE
years experience
Akmam Ahmod Najdigor Makin
IGCSE
years experience
Md Ishaat Hussain
IGCSE
years experience
๐ Apeiron Chemistry Results (2024)
achieved A*โA
achieved A*โB
improved by at least 2 grades
โ Priya S., Edexcel IGCSE Chemistry
โ๏ธ Chemistry Exam Strategy (Apeiron ExaminerโApproved)
- Show full working in calculations โ method marks count
- Use precise chemical terminology and IUPAC names
- Draw clear, labelled diagrams for electrolysis and bonding
- Quote data and observations from the question in your answer
- For evaluation questions, give balanced arguments supported by evidence
- Don't ignore command words (describe / explain / predict / evaluate)
- Don't skip steps in multiโstep calculations
- Don't confuse exothermic vs endothermic signs
- Don't forget to include units in final answers
- 1โ2 mark questions: short, precise answers with key terms
- 4โ6 mark questions: develop chains of reasoning (cause โ effect โ explanation)
- Organic chemistry naming and reactions appear in nearly every paper
- Practice core practicals โ qualitative tests are heavily examined
๐ Free Resources (From Apeiron & Official Boards)
Access official โ
Download now โ
Download free PDF โ
Watch exam technique videos โ
Official 4CH1 Spec โ
Official 0620 Syllabus โ
๐ฌ Enquire about Apeiron's Chemistry course
Fill out the form and our Chemistry coordinator will contact you within 24 hours to discuss your target grade and study plan.
๐ Apeiron Exam Prep Centre โ specialising in Edexcel & Cambridge IGCSE, AS/A Level, and IAL since 2012.
๐ Locations: Online & inโcentre (London, Manchester, Birmingham) | Email: chemistry@apeironlab.science