How to ace the IGCSE exams

Inspiring lessons

IGCSE is a rigorous program that emphasises understanding and critical thinking. Always try to find stimulating lectures that are straight to the point. When the explanation is good enough, you will spend less time learning the content. I design my lectures to include all the details from the syllabus in an easy way with great emphasis on solving past exam papers and practical simulations

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Solve & Solve..

Practice makes perfect, solving past papers right while learning is the key. Your teacher should model solving exam questions during the lesson, and you should also have answers written by an expert because the mark scheme is not clear enough. I  provide my students with detailed answers for every topic

Check The Model Answers

Short but complete notes

You don’t have time to read textbooks, you’d rather practice past papers instead. You need notes that are up-to-date with the latest syllabus, they should be straight to the point without extra information that you wouldn’t need in the exam. I designed my notes around exam mark schemes so that they're highly reliable. Students love to study from my books because they're written clearly with illustrations that help to remember the content 



Check The Complete Notes

Test yourself

You need to check your understanding with regular quizzes, which can be done with automated multiple-choice questions that I provide for each topic. You still need to practice the written answers, which count for a larger percentage of your exam. This can only be done with the help of a teacher who is an expert in exam marking techniques. I provide my students with model answers written by me. Students can also reach out to me via WhatsApp or email to show me their answers 

Try an IGCSE Chemistry Quiz

What IGCSE Chemistry Paper 4 actually tests

1771 question parts across 1 paper — 2880 marks — classified by topic. Revise in this order.

The exact topics you must study for your IGCSE Chemistry exam in 2026

Two minutes on the topics that carry the marks — then use the chapter data below to order your revision.

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28%
of parts say "State"
12%
"Explain" or "Describe" — where marks are lost
22%
of parts are high-difficulty

Paper 4 (Theory, Extended) · 0971/0620

36 papers · 1771 question parts · 2880 marks

  1. Organic chemistry 21.2%
  2. Atoms, elements and compounds 17.1%
  3. Chemical reactions 16.1%
  4. Acids, bases and salts 14.5%
  5. The Periodic Table 8.4%
  6. Electrochemistry 7.8%
  7. Metals 7.4%
  8. Chemical energetics 3.5%

Organic chemistry, Atoms, elements and compounds and Chemical reactions carry 54% of the marks.

Command words, most to least common

State (496), Name (305), Complete (170), Explain (128), Write (115), Give (113).

"Explain" and "Describe" questions are where marks are lost — the answer is right but not in mark-scheme words. Every question in the solved papers is written in those words.

See the solved papers Specification checklist

About this analysis. Mr Hosni's team classified every question part of Paper 4 (Theory, Extended) · 0971/0620 (36 papers, 1771 parts) by topic, command word and difficulty. Percentages are shares of the marks available across all papers. The same classification drives the By-Topic mode of the Chem Bio solved-papers plugin, where each question opens to a full model answer. Updated after each new series.

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