Cambridge IGCSE™ Chemistry 0620Examination in 2026, 2027 and 2028Core + Supplement
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Every topic of the Cambridge IGCSE Chemistry 0620 syllabus for examination in 2026, 2027 and 2028, Core and Supplement. Each page teaches the syllabus statements in order, places the animations and interactive models inside the section that uses them, and follows each sub-topic with past-paper questions and their mark-scheme answers. Supplement content carries a purple badge.

Topic 1States of matter
  • 1.1 Solids, liquids and gases
  • 1.2 Diffusion
11 sections · 0 animations · 3 models · 13 past-paper questions
Topic 2Atoms, elements and compounds
  • 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
21 sections · 30 animations · 8 models · 32 past-paper questions
Topic 3Stoichiometry
  • 3.1 Formulae
  • 3.2 Relative masses of atoms and molecules
  • 3.3 The mole and the Avogadro constant
14 sections · 44 animations · 6 models · 18 past-paper questions
Topic 4Electrochemistry
  • 4.1 Electrolysis
  • 4.2 Hydrogen–oxygen fuel cells
11 sections · 23 animations · 2 models · 18 past-paper questions
Topic 5Chemical energetics
  • 5.1 Exothermic and endothermic reactions
8 sections · 17 animations · 2 models · 13 past-paper questions
Topic 6Chemical reactions
  • 6.1 Physical and chemical changes
  • 6.2 Rate of reaction
  • 6.3 Reversible reactions and equilibrium
  • 6.4 Redox
14 sections · 25 animations · 4 models · 29 past-paper questions
Topic 7Acids, bases and salts
  • 7.1 The characteristic properties of acids and bases
  • 7.2 Oxides
  • 7.3 Preparation of salts
12 sections · 2 animations · 3 models · 24 past-paper questions
Topic 8The Periodic Table
  • 8.1 Arrangement of elements
  • 8.2 Group I properties
  • 8.3 Group VII properties
  • 8.4 Transition elements
  • 8.5 Noble gases
9 sections · 4 animations · 3 models · 26 past-paper questions
Topic 9Metals
  • 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
13 sections · 3 animations · 3 models · 40 past-paper questions
Topic 10Chemistry of the environment
  • 10.1 Water
  • 10.2 Fertilisers
  • 10.3 Air quality and climate
11 sections · 2 animations · 3 models · 22 past-paper questions
Topic 11Organic chemistry
  • 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
14 sections · 1 animations · 3 models · 53 past-paper questions
Topic 12Experimental techniques and chemical analysis
  • 12.1 Experimental design
  • 12.2 Acid–base titrations
  • 12.3 Chromatography
  • 12.4 Separation and purification
  • 12.5 Identification of ions and gases
9 sections · 2 animations · 4 models · 23 past-paper questions