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IGCSE Chemistry
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- Syllabus
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- Scheme of Work
- Exam Technique
- Command Words — A3 poster
- Lesson Plans — one page per topic
- Class Mark Book
1. States of matter 12 files
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2. Atoms, elements and compounds 27 files
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3. Stoichiometry 14 files
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Unit Tests
4. Electrochemistry 12 files
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Vocabulary
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Starter Quizzes
Exercise sheets
Past Paper Questions
Unit Tests
5. Chemical energetics 9 files
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Vocabulary
Topic Quizzes
Starter Quizzes
Exercise sheets
Past Paper Questions
Unit Tests
6. Chemical reactions 18 files
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Vocabulary
Topic Quizzes
Starter Quizzes
Exercise sheets
Past Paper Questions
Unit Tests
7. Acids, bases and salts 15 files
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Vocabulary
Topic Quizzes
Starter Quizzes
Exercise sheets
Past Paper Questions
Unit Tests
8. The Periodic Table 21 files
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Vocabulary
Topic Quizzes
Starter Quizzes
Exercise sheets
Past Paper Questions
Unit Tests
9. Metals 24 files
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Vocabulary
Topic Quizzes
Starter Quizzes
Exercise sheets
Past Paper Questions
Unit Tests
10. Chemistry of the environment 15 files
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Exercise walk-through slides
Vocabulary
Topic Quizzes
Starter Quizzes
Exercise sheets
Past Paper Questions
Unit Tests
11. Organic chemistry 29 files
Handouts
Presentation slides
Exercise walk-through slides
Vocabulary
Topic Quizzes
Starter Quizzes
Exercise sheets
Past Paper Questions
Unit Tests
12. Experimental techniques and chemical analysis 21 files
Presentation slides
Exercise walk-through slides
Topic Quizzes
Starter Quizzes
Exercise sheets
Past Paper Questions
2025 94 files
October / November session
- Paper 11 Questions Answers
- Paper 12 Questions Answers
- Paper 13 Questions Answers
- Paper 21 Questions Answers
- Paper 22 Questions Answers
- Paper 23 Questions Answers
- Paper 31 Questions Answers
- Paper 32 Questions Answers
- Paper 33 Questions Answers
- Paper 41 Questions Answers
- Paper 42 Questions Answers
- Paper 43 Questions Answers
- Paper 52 Questions Answers
- Paper 53 Questions Answers
- Paper 61 Questions Answers
- Paper 62 Questions Answers
- Paper 63 Questions Answers
- Grade thresholds
- Examiner report
- 0620 Chemistry November 2025 Confidential Instructions 52.pdf
- 0620 Chemistry November 2025 Confidential Instructions 53.pdf
June session
- Paper 11 Questions Answers
- Paper 12 Questions Answers
- Paper 13 Questions Answers
- Paper 21 Questions Answers
- Paper 22 Questions Answers
- Paper 23 Questions Answers
- Paper 31 Questions Answers
- Paper 32 Questions Answers
- Paper 33 Questions Answers
- Paper 41 Questions Answers
- Paper 42 Questions Answers
- Paper 43 Questions Answers
- Paper 51 Questions Answers
- Paper 52 Questions Answers
- Paper 53 Questions Answers
- Paper 61 Questions Answers
- Paper 62 Questions Answers
- Paper 63 Questions Answers
- Grade thresholds
- Examiner report
- 0620 Chemistry June 2025 Confidential Instructions 51.pdf
- 0620 Chemistry June 2025 Confidential Instructions 52.pdf
- 0620 Chemistry June 2025 Confidential Instructions 53.pdf
March session
2024 94 files
October / November session
- Paper 11 Questions Answers
- Paper 12 Questions Answers
- Paper 13 Questions Answers
- Paper 21 Questions Answers
- Paper 22 Questions Answers
- Paper 23 Questions Answers
- Paper 31 Questions Answers
- Paper 32 Questions Answers
- Paper 33 Questions Answers
- Paper 41 Questions Answers
- Paper 42 Questions Answers
- Paper 43 Questions Answers
- Paper 52 Questions Answers
- Paper 53 Questions Answers
- Paper 61 Questions Answers
- Paper 62 Questions Answers
- Paper 63 Questions Answers
- Grade thresholds
- Examiner report
- 0620 Chemistry November 2024 Confidential Instructions 52.pdf
- 0620 Chemistry November 2024 Confidential Instructions 53.pdf
June session
- Paper 11 Questions Answers
- Paper 12 Questions Answers
- Paper 13 Questions Answers
- Paper 21 Questions Answers
- Paper 22 Questions Answers
- Paper 23 Questions Answers
- Paper 31 Questions Answers
- Paper 32 Questions Answers
- Paper 33 Questions Answers
- Paper 41 Questions Answers
- Paper 42 Questions Answers
- Paper 43 Questions Answers
- Paper 51 Questions Answers
- Paper 52 Questions Answers
- Paper 53 Questions Answers
- Paper 61 Questions Answers
- Paper 62 Questions Answers
- Paper 63 Questions Answers
- Grade thresholds
- Examiner report
- 0620 Chemistry June 2024 Confidential Instructions 51.pdf
- 0620 Chemistry June 2024 Confidential Instructions 52.pdf
- 0620 Chemistry June 2024 Confidential Instructions 53.pdf
March session
2023 94 files
October / November session
- Paper 11 Questions Answers
- Paper 12 Questions Answers
- Paper 13 Questions Answers
- Paper 21 Questions Answers
- Paper 22 Questions Answers
- Paper 23 Questions Answers
- Paper 31 Questions Answers
- Paper 32 Questions Answers
- Paper 33 Questions Answers
- Paper 41 Questions Answers
- Paper 42 Questions Answers
- Paper 43 Questions Answers
- Paper 52 Questions Answers
- Paper 53 Questions Answers
- Paper 61 Questions Answers
- Paper 62 Questions Answers
- Paper 63 Questions Answers
- Grade thresholds
- Examiner report
- 0620 Chemistry November 2023 Confidential Instructions 52.pdf
- 0620 Chemistry November 2023 Confidential Instructions 53.pdf
June session
- Paper 11 Questions Answers
- Paper 12 Questions Answers
- Paper 13 Questions Answers
- Paper 21 Questions Answers
- Paper 22 Questions Answers
- Paper 23 Questions Answers
- Paper 31 Questions Answers
- Paper 32 Questions Answers
- Paper 33 Questions Answers
- Paper 41 Questions Answers
- Paper 42 Questions Answers
- Paper 43 Questions Answers
- Paper 51 Questions Answers
- Paper 52 Questions Answers
- Paper 53 Questions Answers
- Paper 61 Questions Answers
- Paper 62 Questions Answers
- Paper 63 Questions Answers
- Grade thresholds
- Examiner report
- 0620 Chemistry June 2023 Confidential Instructions 51.pdf
- 0620 Chemistry June 2023 Confidential Instructions 52.pdf
- 0620 Chemistry June 2023 Confidential Instructions 53.pdf
March session
2022 97 files
October / November session
- Paper 11 Questions Answers
- Paper 12 Questions Answers
- Paper 13 Questions Answers
- Paper 21 Questions Answers
- Paper 22 Questions Answers
- Paper 23 Questions Answers
- Paper 31 Questions Answers
- Paper 32 Questions Answers
- Paper 33 Questions Answers
- Paper 41 Questions Answers
- Paper 42 Questions Answers
- Paper 43 Questions Answers
- Paper 51 Questions Answers
- Paper 52 Questions Answers
- Paper 53 Questions Answers
- Paper 61 Questions Answers
- Paper 62 Questions Answers
- Paper 63 Questions Answers
- Grade thresholds
- Examiner report
- 0620 Chemistry November 2022 Confidential Instructions 51.pdf
- 0620 Chemistry November 2022 Confidential Instructions 52.pdf
- 0620 Chemistry November 2022 Confidential Instructions 53.pdf
June session
- Paper 11 Questions Answers
- Paper 12 Questions Answers
- Paper 13 Questions Answers
- Paper 21 Questions Answers
- Paper 22 Questions Answers
- Paper 23 Questions Answers
- Paper 31 Questions Answers
- Paper 32 Questions Answers
- Paper 33 Questions Answers
- Paper 41 Questions Answers
- Paper 42 Questions Answers
- Paper 43 Questions Answers
- Paper 51 Questions Answers
- Paper 52 Questions Answers
- Paper 53 Questions Answers
- Paper 61 Questions Answers
- Paper 62 Questions Answers
- Paper 63 Questions Answers
- Grade thresholds
- Examiner report
- 0620 Chemistry June 2022 Confidential Instructions 51.pdf
- 0620 Chemistry June 2022 Confidential Instructions 52.pdf
- 0620 Chemistry June 2022 Confidential Instructions 53.pdf
March session
2021 97 files
October / November session
- Paper 11 Questions Answers
- Paper 12 Questions Answers
- Paper 13 Questions Answers
- Paper 21 Questions Answers
- Paper 22 Questions Answers
- Paper 23 Questions Answers
- Paper 31 Questions Answers
- Paper 32 Questions Answers
- Paper 33 Questions Answers
- Paper 41 Questions Answers
- Paper 42 Questions Answers
- Paper 43 Questions Answers
- Paper 51 Questions Answers
- Paper 52 Questions Answers
- Paper 53 Questions Answers
- Paper 61 Questions Answers
- Paper 62 Questions Answers
- Paper 63 Questions Answers
- Grade thresholds
- Examiner report
- 0620 Chemistry November 2021 Confidential Instructions 51.pdf
- 0620 Chemistry November 2021 Confidential Instructions 52.pdf
- 0620 Chemistry November 2021 Confidential Instructions 53.pdf
June session
- Paper 11 Questions Answers
- Paper 12 Questions Answers
- Paper 13 Questions Answers
- Paper 21 Questions Answers
- Paper 22 Questions Answers
- Paper 23 Questions Answers
- Paper 31 Questions Answers
- Paper 32 Questions Answers
- Paper 33 Questions Answers
- Paper 41 Questions Answers
- Paper 42 Questions Answers
- Paper 43 Questions Answers
- Paper 51 Questions Answers
- Paper 52 Questions Answers
- Paper 53 Questions Answers
- Paper 61 Questions Answers
- Paper 62 Questions Answers
- Paper 63 Questions Answers
- Grade thresholds
- Examiner report
- 0620 Chemistry June 2021 Confidential Instructions 51.pdf
- 0620 Chemistry June 2021 Confidential Instructions 52.pdf
- 0620 Chemistry June 2021 Confidential Instructions 53.pdf
March session
- IGCSE Chemistry — Question index
- 1.1 Solids, liquids and gases
- 1.2 Diffusion
- 2.1 Elements, compounds and mixtures
- 2.2 Atomic structure and the Periodic Table
- 2.3 Isotopes
- 2.4 Ions and ionic bonds
- 2.5 Simple molecules and covalent bonds
- 2.6 Giant covalent structures
- 2.7 Metallic bonding
- 3.1 Formulae
- 3.3 The mole and the Avogadro constant
- 4.1 Electrolysis
- 4.2 Hydrogen–oxygen fuel cells
- 5.1 Exothermic and endothermic reactions
- 6.1 Physical and chemical changes
- 6.2 Rate of reaction
- 6.3 Reversible reactions and equilibrium
- 6.4 Redox
- 7.1 The characteristic properties of acids and bases
- 7.2 Oxides
- 7.3 Preparation of salts
- 8.1 Arrangement of elements
- 8.2 Group I properties
- 8.3 Group VII properties
- 8.4 Transition elements
- 8.5 Noble gases
- 9.1 Properties of metals
- 9.2 Uses of metals
- 9.3 Alloys and their properties
- 9.4 Reactivity series
- 9.5 Corrosion of metals
- 9.6 Extraction of metals
- 10.1 Water
- 10.2 Fertilisers
- 10.3 Air quality and climate
- 11.1 Formulae, functional groups and terminology
- 11.3 Fuels
- 11.4 Alkanes
- 11.5 Alkenes
- 11.6 Alcohols
- 11.7 Carboxylic acids
- 11.8 Polymers
- 12.1 Experimental design
- 12.2 Acid–base titrations
- 12.3 Chromatography
- 12.4 Separation and purification
- 12.5 Identification of ions and gases
Topic quizzes
- 1. States of matter
- 2. Atoms, elements and compounds
- 3. Stoichiometry
- 4. Electrochemistry
- 5. Chemical energetics
- 6. Chemical reactions
- 7. Acids, bases and salts
- 8. The Periodic Table
- 9. Metals
- 10. Chemistry of the environment
- 11. Organic chemistry
- 12. Experimental techniques and chemical analysis
Starter quizzes
- 1. States of matter
- 2. Atoms, elements and compounds
- 3. Stoichiometry
- 4. Electrochemistry
- 5. Chemical energetics
- 6. Chemical reactions
- 7. Acids, bases and salts
- 8. The Periodic Table
- 9. Metals
- 10. Chemistry of the environment
- 11. Organic chemistry
- 12. Experimental techniques and chemical analysis
Unit tests
- 1. States of matter
- 2. Atoms, elements and compounds
- 3. Stoichiometry
- 4. Electrochemistry
- 5. Chemical energetics
- 6. Chemical reactions
- 7. Acids, bases and salts
- 8. The Periodic Table
- 9. Metals
- 10. Chemistry of the environment
- 11. Organic chemistry
- 12. Experimental techniques and chemical analysis
Mock papers
Course companion
Glossary
Topic handouts
- 1.1 Solids, liquids and gases
- 1.2 Diffusion
- 2.1 Elements, compounds and mixtures
- 2.2 Atomic structure and the Periodic Table
- 2.3 Isotopes
- 2.4 Ions and ionic bonds
- 2.5 Simple molecules and covalent bonds
- 2.6 Giant covalent structures
- 2.7 Metallic bonding
- 3.1 Formulae
- 3.2 Relative masses of atoms and molecules
- 3.3 The mole and the Avogadro constant
- 4.1 Electrolysis
- 4.2 Hydrogen–oxygen fuel cells
- 5.1 Exothermic and endothermic reactions
- 6.1 Physical and chemical changes
- 6.2 Rate of reaction
- 6.3 Reversible reactions and equilibrium
- 6.4 Redox
- 7.1 The characteristic properties of acids and bases
- 7.2 Oxides
- 7.3 Preparation of salts
- 8.1 Arrangement of elements
- 8.2 Group I properties
- 8.3 Group VII properties
- 8.4 Transition elements
- 8.5 Noble gases
- 9.1 Properties of metals
- 9.2 Uses of metals
- 9.3 Alloys and their properties
- 9.4 Reactivity series
- 9.5 Corrosion of metals
- 9.6 Extraction of metals
- 10.1 Water
- 10.2 Fertilisers
- 10.3 Air quality and climate
- 11.1 Formulae, functional groups and terminology
- 11.2 Naming organic compounds
- 11.3 Fuels
- 11.4 Alkanes
- 11.5 Alkenes
- 11.6 Alcohols
- 11.7 Carboxylic acids
- 11.8 Polymers
- 12.1 Experimental design
- 12.2 Acid–base titrations
- 12.3 Chromatography
- 12.4 Separation and purification
- 12.5 Identification of ions and gases
Lesson slides
- 1. States of matter
- 2. Atoms, elements and compounds
- 3. Stoichiometry
- 4. Electrochemistry
- 5. Chemical energetics
- 6. Chemical reactions
- 7. Acids, bases and salts
- 8. The Periodic Table
- 9. Metals
- 10. Chemistry of the environment
- 11. Organic chemistry
- 12. Experimental techniques and chemical analysis
Lesson slides
- 1.1 Solids, liquids and gases
- 1.2 Diffusion
- 2.1 Elements, compounds and mixtures
- 2.2 Atomic structure and the Periodic Table
- 2.3 Isotopes
- 2.4 Ions and ionic bonds
- 2.5 Simple molecules and covalent bonds
- 2.6 Giant covalent structures
- 2.7 Metallic bonding
- 3.1 Formulae
- 3.2 Relative masses of atoms and molecules
- 3.3 The mole and the Avogadro constant
- 4.1 Electrolysis
- 4.2 Hydrogen–oxygen fuel cells
- 5.1 Exothermic and endothermic reactions
- 6.1 Physical and chemical changes
- 6.2 Rate of reaction
- 6.3 Reversible reactions and equilibrium
- 6.4 Redox
- 7.1 The characteristic properties of acids and bases
- 7.2 Oxides
- 7.3 Preparation of salts
- 8.1 Arrangement of elements
- 8.2 Group I properties
- 8.3 Group VII properties
- 8.4 Transition elements
- 8.5 Noble gases
- 9.1 Properties of metals
- 9.2 Uses of metals
- 9.3 Alloys and their properties
- 9.4 Reactivity series
- 9.5 Corrosion of metals
- 9.6 Extraction of metals
- 10.1 Water
- 10.2 Fertilisers
- 10.3 Air quality and climate
- 11.1 Formulae, functional groups and terminology
- 11.2 Naming organic compounds
- 11.3 Fuels
- 11.4 Alkanes
- 11.5 Alkenes
- 11.6 Alcohols
- 11.7 Carboxylic acids
- 11.8 Polymers
- 12.1 Experimental design
- 12.2 Acid–base titrations
- 12.3 Chromatography
- 12.4 Separation and purification
- 12.5 Identification of ions and gases
Vocabulary lists
- 1. States of matter
- 2. Atoms, elements and compounds
- 3. Stoichiometry
- 4. Electrochemistry
- 5. Chemical energetics
- 6. Chemical reactions
- 7. Acids, bases and salts
- 8. The Periodic Table
- 9. Metals
- 10. Chemistry of the environment
- 11. Organic chemistry
- 12. Experimental techniques and chemical analysis
Flashcards
Weekly vocab tests
- Week 1 · Topic 1 · States of matter
- Week 2 · Topics 1–2 · States of matter, Atoms, elements and compounds
- Week 3 · Topics 2–7 · Atoms, elements and compounds, Acids, bases and salts
- Week 4 · Topics 2–4 · Atoms, elements and compounds, Electrochemistry
- Week 5 · Topics 2–3 · Atoms, elements and compounds, Stoichiometry
- Week 6 · Topics 3–4 · Stoichiometry, Electrochemistry
- Week 7 · Topics 4–10 · Electrochemistry, Chemical energetics, Chemistry of the environment
- Week 8 · Topics 5–6 · Chemical energetics, Chemical reactions
- Week 9 · Topics 6–7 · Chemical reactions, Acids, bases and salts
- Week 10 · Topic 7 · Acids, bases and salts
- Week 11 · Topics 7–8 · Acids, bases and salts, The Periodic Table
- Week 12 · Topics 4–9 · Electrochemistry, The Periodic Table, Metals
- Week 13 · Topics 4–10 · Electrochemistry, Metals, Chemistry of the environment
- Week 14 · Topic 10 · Chemistry of the environment
- Week 15 · Topics 10–11 · Chemistry of the environment, Organic chemistry
- Week 16 · Topic 11 · Organic chemistry
- Week 17 · Topics 11–12 · Organic chemistry, Experimental techniques and chemical analysis
- Week 18 · Topics 7–12 · Acids, bases and salts, Organic chemistry, Experimental techniques and chemical analysis
Weekly homework
Exercise sheets
- Complete pack — exercise sheets + past papers
- 1 States of matter — Part 1
- 1 States of matter — Part 2
- 2 Atoms, elements and compounds — Part 1
- 2 Atoms, elements and compounds — Part 2
- 3 Stoichiometry — Part 1
- 3 Stoichiometry — Part 2
- 4 Electrochemistry — Part 1
- 4 Electrochemistry — Part 2
- 5 Chemical energetics — Part 1
- 5 Chemical energetics — Part 2
- 6 Chemical reactions — Part 1
- 6 Chemical reactions — Part 2
- 7 Acids, bases and salts — Part 1
- 7 Acids, bases and salts — Part 2
- 8 The Periodic Table — Part 1
- 8 The Periodic Table — Part 2
- 9 Metals — Part 1
- 9 Metals — Part 2
- 10 Chemistry of the environment — Part 1
- 10 Chemistry of the environment — Part 2
- 11 Organic chemistry — Part 1
- 11 Organic chemistry — Part 2
- 12 Experimental techniques and chemical analysis — Part 1
- 12 Experimental techniques and chemical analysis — Part 2
Past papers
- 1.1 Solids, liquids and gases
- 1.2 Diffusion
- 2.1 Elements, compounds and mixtures
- 2.2 Atomic structure and the Periodic Table
- 2.3 Isotopes
- 2.4 Ions and ionic bonds
- 2.5 Simple molecules and covalent bonds
- 2.6 Giant covalent structures
- 2.7 Metallic bonding
- 3.1 Formulae
- 3.3 The mole and the Avogadro constant
- 4.1 Electrolysis
- 4.2 Hydrogen–oxygen fuel cells
- 5.1 Exothermic and endothermic reactions
- 6.1 Physical and chemical changes
- 6.2 Rate of reaction
- 6.3 Reversible reactions and equilibrium
- 6.4 Redox
- 7.1 The characteristic properties of acids and bases
- 7.2 Oxides
- 7.3 Preparation of salts
- 8.1 Arrangement of elements
- 8.2 Group I properties
- 8.3 Group VII properties
- 8.4 Transition elements
- 8.5 Noble gases
- 9.1 Properties of metals
- 9.2 Uses of metals
- 9.3 Alloys and their properties
- 9.4 Reactivity series
- 9.5 Corrosion of metals
- 9.6 Extraction of metals
- 10.1 Water
- 10.2 Fertilisers
- 10.3 Air quality and climate
- 11.1 Formulae, functional groups and terminology
- 11.3 Fuels
- 11.4 Alkanes
- 11.5 Alkenes
- 11.6 Alcohols
- 11.7 Carboxylic acids
- 11.8 Polymers
- 12.1 Experimental design
- 12.2 Acid–base titrations
- 12.3 Chromatography
- 12.4 Separation and purification
- 12.5 Identification of ions and gases
Tips
Do the qualitative-analysis questions from several sessions in one go. The tests for ions and gases are a small fixed list that barely changes year to year, so meeting them together turns them from something to remember into something you know.
Mark your equations as a marker would: unbalanced is zero; missing state symbols where the scheme asks is zero; a full equation where an ionic one was wanted is zero. These are the cheapest marks in the subject and the ones most often given away.
Once the content is secure, work whole papers to time. Stoichiometry questions are long enough that running out of time is a real failure mode.