{"id":45348,"date":"2026-08-27T10:54:04","date_gmt":"2026-08-27T03:54:04","guid":{"rendered":"https:\/\/times.edu.vn\/?p=45348"},"modified":"2026-08-27T10:54:54","modified_gmt":"2026-08-27T03:54:54","slug":"igcse-chemistry-exam-format","status":"publish","type":"post","link":"https:\/\/times.edu.vn\/en\/igcse\/igcse-chemistry-exam-format\/","title":{"rendered":"IGCSE Chemistry exam format 2026: The complete guide for Cambridge students"},"content":{"rendered":"<p>The IGCSE Chemistry exam format is divided into Core and Extended routes, with each student taking three papers: a multiple-choice paper, a theory paper, and either a Practical Test or Alternative to Practical. Core students take Papers 1 and 3, while Extended students take Papers 2 and 4, with both routes completing Paper 5 or Paper 6. Each paper has a different duration, weighting, and focus, from knowledge recall and calculations to experimental skills.<\/p>\n<p>This guide explains the Cambridge IGCSE Chemistry 0620 exam structure and how to prepare effectively for each component.<\/p>\n<h2>IGCSE Chemistry exam format explained<\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/times.edu.vn\/wp-content\/uploads\/2026\/08\/IGCSE-Chemistry-exam-format.webp\" alt=\"IGCSE Chemistry exam format\" width=\"1000\" height=\"667\" \/><\/p>\n<p>The Cambridge <a href=\"https:\/\/times.edu.vn\/en\/igcse\/igcse-chemistry-study-plan\/\">IGCSE Chemistry<\/a> <sup><a href=\"#tooltip-ref-1\" class=\"tooltip-link\" data-tooltip=\"https:\/\/www.cambridgeinternational.org\/programmes-and-qualifications\/view\/cambridge-igcse-chemistry-0620\/\">[1]<\/a><\/sup> exam format is built around a tiered system. Students do not sit a single universal exam. Instead, they choose between two academic routes, Core or Extended, and that choice determines which set of papers they sit and which grade bands are available to them.<\/p>\n<p>Cambridge International designed this structure deliberately. It allows students of different ability levels to be assessed fairly, while still using a shared syllabus framework. The Chemistry 0620 exam format has remained consistent in its core architecture, making it predictable enough to prepare for with the right strategy.<\/p>\n<blockquote><p>One critical detail often overlooked is that the tier choice is not reversible mid-cycle. Students and schools must declare their route before the exam series begins, which means the decision carries real academic consequences.<\/p><\/blockquote>\n\n\t<button class='btn-dang-ky' onclick=\"openPopup('popup1')\">\n\t\t<span class='text-effect-1'>\n\t\t\t<svg\n\t\t\t\txmlns='http:\/\/www.w3.org\/2000\/svg'\n\t\t\t\tviewBox='0 0 64 64'\n\t\t\t\twidth='24'\n\t\t\t\theight='24'\n\t\t\t\taria-label='Calendar icon'\n\t\t\t>\n\t\t\t\t<rect width='64' height='64' rx='6' fill='#caa15a'\/>\n\t\t\t\t<rect x='10' y='14' width='44' height='40' rx='4'\n\t\t\t\t\tfill='none' stroke='#ffffff' stroke-width='4'\/>\n\t\t\t\t<line x1='10' y1='24' x2='54' y2='24'\n\t\t\t\t\tstroke='#ffffff' stroke-width='4'\/>\n\t\t\t\t<line x1='22' y1='6' x2='22' y2='18'\n\t\t\t\t\tstroke='#ffffff' stroke-width='4' stroke-linecap='round'\/>\n\t\t\t\t<line x1='42' y1='6' x2='42' y2='18'\n\t\t\t\t\tstroke='#ffffff' stroke-width='4' stroke-linecap='round'\/>\n\t\t\t<\/svg>\n\t\t\tBook a Trial Class\n\t\t<\/span>\n\t<\/button>\n<p><strong style=\"color: #f00;\">&gt;&gt;&gt; Read more:<\/strong> <a class=\"xem-them-link\" href=\"https:\/\/times.edu.vn\/en\/igcse\/igcse-chemistry-exam-technique\/\">IGCSE Chemistry exam technique<\/a> 2026: The complete guide to scoring higher marks<\/p>\n<h2>How many papers are in Cambridge IGCSE Chemistry?<\/h2>\n<p>Every <a href=\"https:\/\/times.edu.vn\/en\/igcse\/what-is-igcse-a-comprehensive-guide-for-students\/\">IGCSE<\/a> Chemistry candidate sits exactly three papers, regardless of which tier they choose. The combination of papers depends entirely on whether the student is entered for the Core or Extended route.<\/p>\n<ul>\n<li>Core students sit: Paper 1, Paper 3, and either Paper 5 or Paper 6<\/li>\n<li>Extended students sit: Paper 2, Paper 4, and either Paper 5 or Paper 6<\/li>\n<\/ul>\n<blockquote><p>The practical component, whether Paper 5 or Paper 6, applies to both tiers. No student is exempt from some form of practical assessment, which is a point that surprises many families who assume lab work is optional.<\/p><\/blockquote>\n<p><strong style=\"color: #f00;\">&gt;&gt;&gt; Read more:<\/strong> <a class=\"xem-them-link\" href=\"https:\/\/times.edu.vn\/en\/igcse\/igcse-chemistry-books\/\">IGCSE Chemistry 0620 books<\/a> 2026: Complete guide for students and teachers<\/p>\n<h2>Core vs Extended IGCSE Chemistry exam routes<\/h2>\n<p>Choosing between Core and Extended is one of the most consequential decisions in a student&#8217;s Cambridge IGCSE journey. Drawing on years of experience at <a href=\"https:\/\/times.edu.vn\/\">Times Edu<\/a>, we have seen students underperform not because of weak chemistry knowledge, but because they were placed on the wrong tier.<\/p>\n<p>The Core assessment covers foundational content and is designed for students targeting grades 1 to 5 (equivalent to G to C on the legacy scale). It does not include the advanced quantitative topics found in the Supplement syllabus, such as complex stoichiometry, organic synthesis chains, or detailed electrochemical calculations.<\/p>\n<p>The Extended assessment unlocks grades 3 to 9, with grade 9 (A* equivalent) only accessible through this route. It tests both the Core syllabus content and the Supplement syllabus, meaning Extended students must be comfortable with a significantly larger and more demanding body of knowledge.<\/p>\n<table>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">Feature<\/th>\n<th colspan=\"1\" rowspan=\"1\">Core Route<\/th>\n<th colspan=\"1\" rowspan=\"1\">Extended Route<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Papers <a href=\"https:\/\/times.edu.vn\/en\/sat\/digital-sat\/\">sat<\/a><\/td>\n<td colspan=\"1\" rowspan=\"1\">Paper 1, Paper 3, Paper 5 or 6<\/td>\n<td colspan=\"1\" rowspan=\"1\">Paper 2, Paper 4, Paper 5 or 6<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Grade range available<\/td>\n<td colspan=\"1\" rowspan=\"1\">Grades 1 to 5<\/td>\n<td colspan=\"1\" rowspan=\"1\">Grades 3 to 9<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Syllabus coverage<\/td>\n<td colspan=\"1\" rowspan=\"1\">Core only<\/td>\n<td colspan=\"1\" rowspan=\"1\">Core + Supplement<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Top grade achievable<\/td>\n<td colspan=\"1\" rowspan=\"1\">Grade 5<\/td>\n<td colspan=\"1\" rowspan=\"1\">Grade 9 (A*)<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Recommended for<\/td>\n<td colspan=\"1\" rowspan=\"1\">Foundation-level learners<\/td>\n<td colspan=\"1\" rowspan=\"1\">Students targeting top universities<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\t<button class='btn-dang-ky' onclick=\"openPopup('popup1')\">\n\t\t<span class='text-effect-1'>\n\t\t\t<svg\n\t\t\t\txmlns='http:\/\/www.w3.org\/2000\/svg'\n\t\t\t\tviewBox='0 0 64 64'\n\t\t\t\twidth='24'\n\t\t\t\theight='24'\n\t\t\t\taria-label='Calendar icon'\n\t\t\t>\n\t\t\t\t<rect width='64' height='64' rx='6' fill='#caa15a'\/>\n\t\t\t\t<rect x='10' y='14' width='44' height='40' rx='4'\n\t\t\t\t\tfill='none' stroke='#ffffff' stroke-width='4'\/>\n\t\t\t\t<line x1='10' y1='24' x2='54' y2='24'\n\t\t\t\t\tstroke='#ffffff' stroke-width='4'\/>\n\t\t\t\t<line x1='22' y1='6' x2='22' y2='18'\n\t\t\t\t\tstroke='#ffffff' stroke-width='4' stroke-linecap='round'\/>\n\t\t\t\t<line x1='42' y1='6' x2='42' y2='18'\n\t\t\t\t\tstroke='#ffffff' stroke-width='4' stroke-linecap='round'\/>\n\t\t\t<\/svg>\n\t\t\tBook a Trial Class\n\t\t<\/span>\n\t<\/button>\n<p><strong style=\"color: #f00;\">&gt;&gt;&gt; Read more:<\/strong> <a class=\"xem-them-link\" href=\"https:\/\/times.edu.vn\/en\/igcse\/igcse-energy-changes-questions\/\">IGCSE Chemistry Energy Changes<\/a>: Exothermic vs Endothermic + Calculations A*<\/p>\n<h2>IGCSE Chemistry Paper 1 format<\/h2>\n<p>Paper 1 is the multiple-choice component for Core tier students. It consists of 40 questions, each with four answer options (A, B, C, D), and must be completed in 45 minutes. The total raw mark available is 40, and each correct answer earns one mark with no penalty for wrong answers.<\/p>\n<p>The Paper 1 Multiple Choice Core paper is intentionally designed to test recall and straightforward application of the Core syllabus. Questions tend to be shorter in length and less mathematically demanding than their Extended counterparts.<\/p>\n<blockquote><p>A common mistake we see is Core students spending too long on any single question. At roughly 67 seconds per question, pace discipline is essential. Students who stall on difficult items lose time they cannot recover.<\/p><\/blockquote>\n<p><strong style=\"color: #f00;\">&gt;&gt;&gt; Read more:<\/strong> <a class=\"xem-them-link\" href=\"https:\/\/times.edu.vn\/en\/igcse\/igcse-chemistry-moles-and-concentration\/\">IGCSE Chemistry Moles and Concentration<\/a> 2026: A Clear Guide to Solving Common Exam Questions<\/p>\n<h2>IGCSE Chemistry Paper 2 format<\/h2>\n<p>Paper 2 is the Extended tier equivalent of Paper 1. It also contains 40 multiple-choice questions, runs for 45 minutes, and carries 40 raw marks. The weighting is 30% of the final grade, identical to Paper 1 in the Core route.<\/p>\n<p>What separates Paper 2 Multiple Choice Extended from its Core counterpart is the quality of the distractors. Cambridge examiners deliberately engineer the wrong answer options to exploit common student errors, whether that is a unit conversion mistake, a misapplied formula, or a conceptual confusion between, say, ionic and covalent bonding characteristics.<\/p>\n<blockquote><p>In our experience working with international students, the biggest Paper 2 trap is overconfidence. Students who score well in class often underestimate the precision required here and lose marks on questions they assumed were easy.<\/p><\/blockquote>\n\n\t<button class='btn-dang-ky' onclick=\"openPopup('popup1')\">\n\t\t<span class='text-effect-1'>\n\t\t\t<svg\n\t\t\t\txmlns='http:\/\/www.w3.org\/2000\/svg'\n\t\t\t\tviewBox='0 0 64 64'\n\t\t\t\twidth='24'\n\t\t\t\theight='24'\n\t\t\t\taria-label='Calendar icon'\n\t\t\t>\n\t\t\t\t<rect width='64' height='64' rx='6' fill='#caa15a'\/>\n\t\t\t\t<rect x='10' y='14' width='44' height='40' rx='4'\n\t\t\t\t\tfill='none' stroke='#ffffff' stroke-width='4'\/>\n\t\t\t\t<line x1='10' y1='24' x2='54' y2='24'\n\t\t\t\t\tstroke='#ffffff' stroke-width='4'\/>\n\t\t\t\t<line x1='22' y1='6' x2='22' y2='18'\n\t\t\t\t\tstroke='#ffffff' stroke-width='4' stroke-linecap='round'\/>\n\t\t\t\t<line x1='42' y1='6' x2='42' y2='18'\n\t\t\t\t\tstroke='#ffffff' stroke-width='4' stroke-linecap='round'\/>\n\t\t\t<\/svg>\n\t\t\tBook a Trial Class\n\t\t<\/span>\n\t<\/button>\n<p><strong style=\"color: #f00;\">&gt;&gt;&gt; Read more:<\/strong> <a class=\"xem-them-link\" href=\"https:\/\/times.edu.vn\/en\/igcse\/igcse-chemistry-mark-scheme-keywords\/\">IGCSE Chemistry Mark Scheme Keywords<\/a> for 2026: The Terms You Need to Use for Better Marks<\/p>\n<h2>IGCSE Chemistry Paper 3 format<\/h2>\n<p>Paper 3 is the Theory Core paper. It lasts 1 hour and 15 minutes, carries 80 raw marks, and is worth 50% of the final grade for Core route students. The question types include short-answer questions, completion tasks, and structured questions that require written explanations.<\/p>\n<p>The Core syllabus tested in Paper 3 covers the foundational topics: Atomic structure, chemical bonding, acids and bases, rates of reaction, and introductory organic chemistry, among others. Questions are scaffolded, meaning they build in difficulty within each item.<\/p>\n<blockquote><p>One critical detail often overlooked is that Paper 3 still requires written precision. Even though it targets the Core tier, vague answers using everyday language rather than scientific terminology will cost marks on any 2-mark or 3-mark structured response.<\/p><\/blockquote>\n<p><strong style=\"color: #f00;\">&gt;&gt;&gt; Read more:<\/strong> <a class=\"xem-them-link\" href=\"https:\/\/times.edu.vn\/en\/igcse\/igcse-chemistry-command-words\/\">IGCSE Chemistry 0620 Command Words<\/a>: Decode Exam Questions for A*<\/p>\n<h2>IGCSE Chemistry Paper 4 format<\/h2>\n<p>Paper 4 is the Theory Extended paper and carries the highest single weighting in the entire Cambridge IGCSE Chemistry exam structure: 50% of the final grade. It runs for 1 hour and 15 minutes and awards 80 raw marks.<\/p>\n<p>The question format includes short-answer questions, long-answer structured questions, multi-step calculations, and 4-mark extended description questions covering topics like collision theory, electrolysis mechanisms, and organic reaction pathways. This is where the Supplement syllabus content appears in full force.<\/p>\n<blockquote><p>A common mistake we see is students treating Paper 4 like a longer version of Paper 2. They are fundamentally different assessment types. Paper 4 rewards depth of explanation, systematic working in calculations, and the ability to apply concepts to unfamiliar contexts, not just recall of facts.<\/p><\/blockquote>\n<p><strong style=\"color: #f00;\">&gt;&gt;&gt; Read more:<\/strong> <a class=\"xem-them-link\" href=\"https:\/\/times.edu.vn\/en\/igcse\/igcse-chemistry-topic-order\/\">IGCSE Chemistry 0620 Topic Order<\/a>: Best Sequence for A* Revision<\/p>\n<h2>IGCSE Chemistry Paper 5 Practical Test format<\/h2>\n<p>Paper 5 is a physical laboratory examination conducted in the school&#8217;s actual lab facilities. Students handle real apparatus, perform chemical tests, collect data, and record observations during the exam session. It lasts 1 hour and 15 minutes, carries 40 raw marks, and is worth 20% of the final grade.<\/p>\n<p>The practical skills assessed in Paper 5 align with the Cambridge practical assessment framework. Students are expected to demonstrate safe handling of equipment, accurate measurement, logical data recording, and the ability to draw conclusions from observed results.<\/p>\n<p>Not every school offers Paper 5, because it requires certified laboratory facilities and trained supervision. Schools that cannot provide this setting automatically enter students for Paper 6 instead.<\/p>\n<p><strong style=\"color: #f00;\">&gt;&gt;&gt; Read more:<\/strong> <a class=\"xem-them-link\" href=\"https:\/\/times.edu.vn\/en\/igcse\/igcse-chemistry-time-management\/\">IGCSE Chemistry Time Management<\/a>: How to Use Your Exam Time More Effectively in 2026<\/p>\n<h2>IGCSE Chemistry Paper 6 Alternative to Practical format<\/h2>\n<p>Paper 6 is a written alternative to the physical lab exam. It lasts 1 hour, carries 40 raw marks, and is also worth 20% of the final grade. Students do not touch any equipment; instead, they respond to questions based on described or diagrammed experimental setups.<\/p>\n<p>Typical Paper 6 content includes: Reading and interpreting instrument diagrams (such as gas syringes and burettes), recalling the expected colors and observations of qualitative chemical tests, and completing a mandatory 6-mark experimental planning section where students must design a valid experiment from a given scenario.<\/p>\n<blockquote><p>Drawing on years of experience at Times Edu, we find that students consistently underestimate Paper 6. Because it is &#8220;only written,&#8221; many assume it requires less preparation. In reality, the qualitative test color recall and the experimental design section demand structured, specific revision that most students leave too late.<\/p><\/blockquote>\n<p><strong style=\"color: #f00;\">&gt;&gt;&gt; Read more:<\/strong> <a class=\"xem-them-link\" href=\"https:\/\/times.edu.vn\/en\/igcse\/igcse-chemistry-mock-improvement-plan\/\">IGCSE Chemistry Mock Improvement Plan<\/a> for 2026: Practical Steps to Improve After Every Mock Exam<\/p>\n<h2>How long is each IGCSE Chemistry paper?<\/h2>\n<p>Time management is an underrated skill in IGCSE Chemistry preparation. Knowing the exact duration of each paper lets students calibrate their pace during revision and mock exams.<\/p>\n<table>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">Paper<\/th>\n<th colspan=\"1\" rowspan=\"1\">Tier<\/th>\n<th colspan=\"1\" rowspan=\"1\">Duration<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Paper 1 (Multiple Choice Core)<\/td>\n<td colspan=\"1\" rowspan=\"1\">Core<\/td>\n<td colspan=\"1\" rowspan=\"1\">45 minutes<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Paper 2 (Multiple Choice Extended)<\/td>\n<td colspan=\"1\" rowspan=\"1\">Extended<\/td>\n<td colspan=\"1\" rowspan=\"1\">45 minutes<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Paper 3 (Theory Core)<\/td>\n<td colspan=\"1\" rowspan=\"1\">Core<\/td>\n<td colspan=\"1\" rowspan=\"1\">1 hour 15 minutes<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Paper 4 (Theory Extended)<\/td>\n<td colspan=\"1\" rowspan=\"1\">Extended<\/td>\n<td colspan=\"1\" rowspan=\"1\">1 hour 15 minutes<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Paper 5 (Practical Test)<\/td>\n<td colspan=\"1\" rowspan=\"1\">Both<\/td>\n<td colspan=\"1\" rowspan=\"1\">1 hour 15 minutes<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Paper 6 (Alternative to Practical)<\/td>\n<td colspan=\"1\" rowspan=\"1\">Both<\/td>\n<td colspan=\"1\" rowspan=\"1\">1 hour<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<blockquote><p>Paper 6 is the only paper that is shorter than the others at its weight category. Students who sit Paper 6 have 60 minutes to earn 40 marks, which averages to 1.5 minutes per mark. That is tighter than it appears, especially given the planning question at the end.<\/p><\/blockquote>\n<h2>How many marks are available on each Chemistry paper?<\/h2>\n<p>Raw marks determine how your scaled grade is calculated. Understanding the mark distribution helps students prioritize their effort proportionally during preparation.<\/p>\n<table>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">Paper<\/th>\n<th colspan=\"1\" rowspan=\"1\">Raw Marks Available<\/th>\n<th colspan=\"1\" rowspan=\"1\">Question Type<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Paper 1<\/td>\n<td colspan=\"1\" rowspan=\"1\">40 marks<\/td>\n<td colspan=\"1\" rowspan=\"1\">Multiple choice<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Paper 2<\/td>\n<td colspan=\"1\" rowspan=\"1\">40 marks<\/td>\n<td colspan=\"1\" rowspan=\"1\">Multiple choice<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Paper 3<\/td>\n<td colspan=\"1\" rowspan=\"1\">80 marks<\/td>\n<td colspan=\"1\" rowspan=\"1\">Short-answer and structured<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Paper 4<\/td>\n<td colspan=\"1\" rowspan=\"1\">80 marks<\/td>\n<td colspan=\"1\" rowspan=\"1\">Short-answer, structured, and calculations<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Paper 5<\/td>\n<td colspan=\"1\" rowspan=\"1\">40 marks<\/td>\n<td colspan=\"1\" rowspan=\"1\">Physical practical tasks<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Paper 6<\/td>\n<td colspan=\"1\" rowspan=\"1\">40 marks<\/td>\n<td colspan=\"1\" rowspan=\"1\">Written practical interpretation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<blockquote><p>The theory papers (Paper 3 and Paper 4) account for the largest pool of raw marks. This is directly reflected in their grade weighting, which makes them the highest-priority revision target for any student.<\/p><\/blockquote>\n<h2>How much is each paper worth toward the final grade?<\/h2>\n<p>Grade weighting is where students must apply cold strategic logic. Every hour of revision should be allocated in proportion to the weight of the paper it prepares you for.<\/p>\n<table>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">Paper<\/th>\n<th colspan=\"1\" rowspan=\"1\">Tier<\/th>\n<th colspan=\"1\" rowspan=\"1\">Grade Weighting<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Paper 1 (Multiple Choice Core)<\/td>\n<td colspan=\"1\" rowspan=\"1\">Core<\/td>\n<td colspan=\"1\" rowspan=\"1\">30%<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Paper 2 (Multiple Choice Extended)<\/td>\n<td colspan=\"1\" rowspan=\"1\">Extended<\/td>\n<td colspan=\"1\" rowspan=\"1\">30%<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Paper 3 (Theory Core)<\/td>\n<td colspan=\"1\" rowspan=\"1\">Core<\/td>\n<td colspan=\"1\" rowspan=\"1\">50%<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Paper 4 (Theory Extended)<\/td>\n<td colspan=\"1\" rowspan=\"1\">Extended<\/td>\n<td colspan=\"1\" rowspan=\"1\">50%<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Paper 5 (Practical Test)<\/td>\n<td colspan=\"1\" rowspan=\"1\">Both<\/td>\n<td colspan=\"1\" rowspan=\"1\">20%<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Paper 6 (Alternative to Practical)<\/td>\n<td colspan=\"1\" rowspan=\"1\">Both<\/td>\n<td colspan=\"1\" rowspan=\"1\">20%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<blockquote><p>The theory paper alone (Paper 3 or 4) accounts for half of the final grade. Students who invest most of their revision time here and then treat the multiple-choice and practical components as secondary are making a strategically sound decision, as long as they do not neglect the other 50%.<\/p><\/blockquote>\n<h2>Which assessment objectives are tested in each paper?<\/h2>\n<p>Cambridge International assesses three distinct assessment objectives across all IGCSE Chemistry papers. These are referred to as AO1, AO2, and AO3, and understanding what each demands changes how you approach revision.<\/p>\n<p><strong>AO1: Knowledge with understanding.<\/strong> This objective asks students to recall and state factual content: Definitions, equations, properties, and observations. It is the foundation of Papers 1, 2, 3, and 4, and also appears in the qualitative sections of Papers 5 and 6.<\/p>\n<p><strong>AO2: Handling information and solving problems.<\/strong> AO2 requires students to apply their knowledge to new or unfamiliar contexts, interpret data, perform calculations, and draw logical conclusions. This objective dominates the structured questions in Papers 3 and 4 and the data interpretation tasks in Papers 5 and 6.<\/p>\n<p><strong>AO3: Experimental skills and investigations.<\/strong> AO3 is assessed exclusively through Papers 5 and 6. It covers planning experiments, recording observations correctly, identifying sources of error, suggesting improvements, and evaluating experimental reliability.<\/p>\n<p>A common mistake we see is students who revise only AO1 content (facts and definitions) and then struggle with multi-step AO2 questions in Paper 4 or the AO3 planning task in Paper 6. All three objectives require deliberate, separate practice strategies.<\/p>\n<h2>Paper 5 vs Paper 6 in IGCSE Chemistry<\/h2>\n<p>The choice between Paper 5 and Paper 6 is usually made at the school level, not by the individual student. However, students benefit from understanding what each demands so they can prepare accordingly.<\/p>\n<table>\n<tbody>\n<tr>\n<th colspan=\"1\" rowspan=\"1\">Feature<\/th>\n<th colspan=\"1\" rowspan=\"1\">Paper 5 (Practical Test)<\/th>\n<th colspan=\"1\" rowspan=\"1\">Paper 6 (Alternative to Practical)<\/th>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Format<\/td>\n<td colspan=\"1\" rowspan=\"1\">Physical lab exam<\/td>\n<td colspan=\"1\" rowspan=\"1\">Written paper<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Duration<\/td>\n<td colspan=\"1\" rowspan=\"1\">1 hour 15 minutes<\/td>\n<td colspan=\"1\" rowspan=\"1\">1 hour<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Raw marks<\/td>\n<td colspan=\"1\" rowspan=\"1\">40 marks<\/td>\n<td colspan=\"1\" rowspan=\"1\">40 marks<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Grade weight<\/td>\n<td colspan=\"1\" rowspan=\"1\">20%<\/td>\n<td colspan=\"1\" rowspan=\"1\">20%<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">Skills tested<\/td>\n<td colspan=\"1\" rowspan=\"1\">Hands-on technique, real observation<\/td>\n<td colspan=\"1\" rowspan=\"1\">Diagram reading, test recall, planning<\/td>\n<\/tr>\n<tr>\n<td colspan=\"1\" rowspan=\"1\">School requirement<\/td>\n<td colspan=\"1\" rowspan=\"1\">Certified lab facilities needed<\/td>\n<td colspan=\"1\" rowspan=\"1\">No lab required<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<blockquote><p>In our experience working with international students across multiple school systems, students sitting Paper 6 often find the 6-mark experimental planning question the most difficult section of the entire exam, not because it is conceptually hard, but because they have never practiced writing a structured experimental plan under timed conditions.<\/p><\/blockquote>\n<h2>Which IGCSE Chemistry exam route should students take?<\/h2>\n<p>The answer depends on three variables: The student&#8217;s current performance level, their target university destination, and the grade they need to remain competitive for their preferred post-16 pathway.<\/p>\n<p>For students targeting <a href=\"https:\/\/times.edu.vn\/en\/a-level\/a-level-chemistry\/\">A Level Chemistry<\/a> or <a href=\"https:\/\/times.edu.vn\/en\/ib\/the-ultimate-ib-diploma-program-ibdp-guide\/\">IB<\/a> Higher Level Chemistry after IGCSE, the Extended route is non-negotiable. Top universities and sixth-form colleges internationally expect Extended tier results from high-performing applicants. A grade 5 from the Core route will rarely satisfy the entry requirements of competitive <a href=\"https:\/\/times.edu.vn\/en\/a-level\/what-is-a-level\/\">A Level<\/a> programs.<\/p>\n<p>For students whose academic strengths lie elsewhere and who are taking Chemistry as a supporting subject rather than a core one, the Core route offers a more manageable assessment experience. However, families should be aware that a Core route grade caps at grade 5, which limits future options if the student&#8217;s academic interests shift.<\/p>\n<blockquote><p>Drawing on years of experience at Times Edu, we recommend that any student who is genuinely uncertain about their capability should take one or two full Extended mock papers under timed conditions before the tier decision is finalized. Real performance data is always more reliable than general impressions.<\/p><\/blockquote>\n<h2>How to prepare for each IGCSE Chemistry paper<\/h2>\n<p>Effective preparation for the Cambridge IGCSE Chemistry exam structure requires a paper-by-paper strategy, not a single generic revision plan.<\/p>\n<p><strong>For Paper 1 and Paper 2 (Multiple Choice):<\/strong><\/p>\n<ul>\n<li>Practice under timed conditions from the first week of revision.<\/li>\n<li>Review every wrong answer by identifying which AO1 or AO2 concept was tested.<\/li>\n<li>Build a personal distractor log that records which wrong options repeatedly attract you and why.<\/li>\n<\/ul>\n<p><strong>For Paper 3 and Paper 4 (Theory):<\/strong><\/p>\n<ul>\n<li>Prioritize the 4-mark and 6-mark structured questions. These carry the most marks and require the most specific phrasing.<\/li>\n<li>Practice stoichiometry calculations step by step, showing all working, because method marks are available even if the final answer is wrong.<\/li>\n<li>Use past paper mark schemes as a vocabulary guide. Cambridge examiners reward specific language, and the mark scheme shows exactly which phrases earn credit.<\/li>\n<\/ul>\n<p><strong>For Paper 5 (Practical Test):<\/strong><\/p>\n<ul>\n<li>Request access to lab sessions specifically focused on the types of tests that appear in IGCSE Chemistry, such as gas tests, ion identification, and titration technique.<\/li>\n<li>Practice recording observations in precise, specific language. &#8220;Blue precipitate formed&#8221; is credited; &#8220;it turned blue&#8221; is not.<\/li>\n<\/ul>\n<p><strong>For Paper 6 (Alternative to Practical):<\/strong><\/p>\n<ul>\n<li>Memorize the full qualitative analysis table from the Cambridge syllabus, including all expected colors, precipitates, and gas observations.<\/li>\n<li>Practice the experimental planning template repeatedly. A strong plan includes: Independent variable, dependent variable, control variables, method steps, safety precautions, and a conclusion method.<\/li>\n<li>Time yourself strictly. At 60 minutes for 40 marks, there is no buffer for slow starts.<\/li>\n<\/ul>\n<h2>Frequently asked questions<\/h2>\n<p><strong>How many papers do you take for IGCSE Chemistry?<\/strong><\/p>\n<p>Every IGCSE Chemistry candidate sits exactly three papers. Core students sit Papers 1, 3, and either 5 or 6. Extended students sit Papers 2, 4, and either 5 or 6.<\/p>\n<p><strong>What is the format of Cambridge IGCSE Chemistry 0620?<\/strong><\/p>\n<p>Cambridge IGCSE Chemistry 0620 uses a tiered exam format comprising a multiple-choice paper, a theory paper, and a practical assessment. The tier chosen (Core or Extended) determines the specific paper codes and the grade range available.<\/p>\n<p><strong>How long is IGCSE Chemistry Paper 4?<\/strong><\/p>\n<p>Paper 4 runs for 1 hour and 15 minutes. It carries 80 raw marks and is worth 50% of the final grade for Extended tier students.<\/p>\n<p><strong>What is the difference between Core and Extended IGCSE Chemistry?<\/strong><\/p>\n<p>The Core route covers foundational syllabus content and awards grades 1 to 5. The Extended route covers both Core and Supplement content, awards grades 3 to 9, and is required for students targeting A* or grade 9.<\/p>\n<p><strong>What is Paper 6 in IGCSE Chemistry?<\/strong><\/p>\n<p>Paper 6 is the Alternative to Practical paper. It is a written exam lasting 1 hour that replaces the physical laboratory test (Paper 5) for students whose schools do not have certified lab facilities. It tests diagram reading, qualitative test recall, and experimental planning.<\/p>\n<p><strong>How much is each IGCSE Chemistry paper worth?<\/strong><\/p>\n<p>The multiple-choice paper (Paper 1 or 2) is worth 30% of the final grade. The theory paper (Paper 3 or 4) is worth 50%. The practical component (Paper 5 or 6) is worth 20%.<\/p>\n<p><strong>Do all IGCSE Chemistry students take a practical paper?<\/strong><\/p>\n<p>Yes. All IGCSE Chemistry students must sit either Paper 5 (the physical laboratory test) or Paper 6 (the written Alternative to Practical). The choice is determined by the school&#8217;s facilities, not by the student&#8217;s tier.<\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-right kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;right&quot;,&quot;id&quot;:&quot;45348&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;1&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;5&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;\u0110\u00e1nh gi\u00e1 b\u00e0i vi\u1ebft&quot;,&quot;legend&quot;:&quot;5\\\/5 - (1 vote)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;IGCSE Chemistry exam format 2026: The complete guide for Cambridge students&quot;,&quot;width&quot;:&quot;142.5&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 142.5px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            5\/5 - (1 vote)    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>The IGCSE Chemistry exam format is divided into Core and Extended routes, with each student taking three papers: a multiple-choice paper, a theory paper, and either a Practical Test or Alternative to Practical. Core students take Papers 1 and 3, while Extended students take Papers 2 and 4, with both routes completing Paper 5 or &#8230; <a title=\"IGCSE Chemistry exam format 2026: The complete guide for Cambridge students\" class=\"read-more\" href=\"https:\/\/times.edu.vn\/en\/igcse\/igcse-chemistry-exam-format\/\" aria-label=\"Read more about IGCSE Chemistry exam format 2026: The complete guide for Cambridge students\">Read more<\/a><\/p>\n","protected":false},"author":7,"featured_media":45317,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"content-type":"","rank_math_title":"","rank_math_description":"","footnotes":""},"categories":[166],"tags":[],"class_list":["post-45348","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-igcse"],"_links":{"self":[{"href":"https:\/\/times.edu.vn\/en\/wp-json\/wp\/v2\/posts\/45348","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/times.edu.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/times.edu.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/times.edu.vn\/en\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/times.edu.vn\/en\/wp-json\/wp\/v2\/comments?post=45348"}],"version-history":[{"count":3,"href":"https:\/\/times.edu.vn\/en\/wp-json\/wp\/v2\/posts\/45348\/revisions"}],"predecessor-version":[{"id":45364,"href":"https:\/\/times.edu.vn\/en\/wp-json\/wp\/v2\/posts\/45348\/revisions\/45364"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/times.edu.vn\/en\/wp-json\/wp\/v2\/media\/45317"}],"wp:attachment":[{"href":"https:\/\/times.edu.vn\/en\/wp-json\/wp\/v2\/media?parent=45348"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/times.edu.vn\/en\/wp-json\/wp\/v2\/categories?post=45348"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/times.edu.vn\/en\/wp-json\/wp\/v2\/tags?post=45348"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}