Switching from SPM to IGCSE Chemistry
A guide for Malaysian students moving from SPM Chemistry to Cambridge IGCSE Chemistry 0620. Key differences in syllabus, exam format, and study approach.
Published by IGCSEChemistry.com.my
Chemistry teaching team: K. S. Tan (15+ years teaching IGCSE Chemistry) and Ms Yash (10+ years teaching IGCSE Chemistry) and Ms Kartini (15+ years teaching IGCSE Chemistry).
Mapped to Cambridge IGCSE Chemistry 0620 (2026–2028). Last updated 2026-08-19.
If you are moving from the Malaysian SPM Chemistry syllabus to Cambridge IGCSE Chemistry 0620, you already have a foundation in chemistry concepts. However, the two qualifications differ in important ways, and understanding these differences will help you adapt quickly and perform well.
What stays the same
Many fundamental concepts appear in both syllabuses. Atomic structure, the periodic table, states of matter, acids and bases, and basic organic chemistry are taught in both SPM and IGCSE. If you studied these topics for SPM, you have a head start on the content.
The practical skills overlap too. Both qualifications test laboratory knowledge, safety procedures, and data interpretation.
What changes
Exam format and style
SPM Chemistry uses a combination of objective questions, structured questions, and essay-type questions. IGCSE Chemistry uses Paper 2 (multiple choice), Paper 4 (structured questions), and Paper 6 (alternative to practical). The structured questions on Paper 4 are often longer and more demanding than SPM equivalents, requiring multi-step reasoning and precise scientific language.
Cambridge exams use specific command words with exact meanings. “State” means give a brief answer. “Explain” means give a reason. “Describe” means say what happens. SPM questions are less rigid about command words, and this difference catches students early.
Read the exam format guide to understand exactly what to expect.
Depth of calculations
The most significant academic difference is the depth of calculation work. IGCSE Extended tier requires students to master stoichiometry at a level beyond SPM, including titration calculations, percentage yield, empirical formula from experimental data, bond energy calculations, and gas volume calculations. If calculations were not your strongest area in SPM, this is where you will need to invest the most time.
Mark scheme precision
Cambridge mark schemes are specific about the language required for a mark. A mark scheme might require the exact phrase “ions are free to move” for a conductivity question. An answer that says the same thing in different words may not score. This precision is more strict than SPM marking.
Content differences
Some IGCSE topics are covered in greater depth than SPM, and some SPM topics do not appear in IGCSE. For example, IGCSE places more emphasis on bonding and structure (including dot-and-cross diagrams) and on chemical energetics (including bond energy calculations). The safest approach is to follow the IGCSE 0620 syllabus document rather than assuming SPM coverage is sufficient.
How to adapt
Get the 0620 syllabus. Download it from the Cambridge International website. Use it as your checklist. Do not assume a topic is covered just because you studied it for SPM.
Focus on exam technique early. Learn the command words. Practise past paper questions from the start. Mark your answers against the mark scheme and note where your SPM-style answers would not score.
Build your calculation skills. Work through the calculations section on this site systematically. Start with relative formula mass and moles from mass, then progress to the more advanced types.
Read the IGCSE Chemistry vs SPM comparison. For a detailed side-by-side analysis, see IGCSE Chemistry vs SPM Chemistry.
Getting support
A specialist IGCSE Chemistry tutor can help you adapt to the Cambridge style efficiently. If you are strong on content from SPM but unfamiliar with Cambridge exam technique, a few targeted sessions can bridge the gap quickly.
Find out about how online IGCSE Chemistry classes work or book a trial lesson.
Studying this yourself? Tutoring arrangements are normally made by a parent or guardian. Message us for the details to share with them, or send them this page.