RevTreeRevTree — AQA GCSE Biology (Separate) — Higher

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4.1 Atomic structure and the periodic table

Higher combined

4.1.1 Atoms, elements and compounds

Atomic structure and the periodic table

Atoms (structure, isotopes, relative mass)

Chemical equations (word → symbol, balancing)

4.1.3 Chromatography

Mixtures, chromatography and separation

4.1.4 Development of the model of the atom

4.1.6 Electronic structure

4.1.7 The periodic table

4.1.11 Transition metals

4.1.1 Atoms, elements and compounds

4.1.3 Chromatography

4.1.1.1 Atoms, elements and compounds

4.1.1.2 Mixtures

4.1.1.3 The development of the model of the atom (common content with physics)

4.1.1.4 Relative electrical charges of subatomic particles

4.1.1.5 Size and mass of atoms

4.1.1.6 Relative atomic mass

4.1.1.7 Electronic structure

4.1.2.1 The periodic table

4.1.2.2 Development of the periodic table

4.1.2.3 Metals and non-metals

4.1.2.4 Group 0

4.1.2.5 Group 1

4.1.2.6 Group 7

4.1.3.1 Comparison with Group 1 elements

4.1.3.2 Typical properties

4.2 Bonding, structure, and the properties of matter

4.5 Energy changes

Higher combined

4.5.1 Exothermic and endothermic reactions

4.5.2 Reaction profiles and activation energy

4.5.1 Exothermic and endothermic reactions

4.5.2 Reaction profiles and activation energy

4.5.1.1 Energy transfer during exothermic and endothermic reactions

4.5.1.2 Reaction profiles

4.5.2.1 Cells and batteries

4.5.2.2 Fuel cells

Triple only

4.5.3 Chemical cells and batteries

4.5.4 Fuel cells

4.5.1.3 The energy change of reactions (HT only)

Paper 1 — Required practicals

Higher combined

Required practicals (Paper 1)

4.6 The rate and extent of chemical change

Higher combined

Rates of reaction (overview)

Measuring rates (mass loss, gas volume, graphs)

Factors affecting rate (collision theory)

4.6.1 Rates of reaction

4.6.2 Reversible reactions and dynamic equilibrium

4.6.1 Rates of reaction

4.6.2 Reversible reactions and dynamic equilibrium

4.6.1.1 Calculating rates of reactions

4.6.1.2 Factors which affect the rates of chemical reactions

4.6.1.3 Collision theory and activation energy

4.6.1.4 Catalysts

4.6.2.1 Reversible reactions

4.6.2.2 Energy changes and reversible reactions

4.6.2.3 Equilibrium

Triple only

4.6.2.4 The effect of changing conditions on equilibrium (HT only)

4.6.2.5 The effect of changing concentration (HT only)

4.6.2.6 The effect of temperature changes on equilibrium (HT only)

4.6.2.7 The effect of pressure changes on equilibrium (HT only)

4.7 Organic chemistry

Higher combined

4.7.1 Crude oil, hydrocarbons and alkenes

4.7.2 Fractional distillation and fuels

4.7.3 Cracking and polymerisation

4.7.1 Crude oil, hydrocarbons and alkenes

4.7.2 Fractional distillation and fuels

4.7.3 Cracking and polymerisation

4.7.1.1 Crude oil, hydrocarbons and alkanes

4.7.1.2 Fractional distillation and petrochemicals

4.7.1.3 Properties of hydrocarbons

4.7.1.4 Cracking and alkenes

4.7.2.1 Structure and formulae of alkenes

4.7.2.2 Reactions of alkenes

4.7.2.3 Alcohols

4.7.2.4 Carboxylic acids

4.7.3.1 Addition polymerisation

4.7.3.4 DNA (deoxyribonucleic acid) and other naturally occurring polymers

Triple only

4.7.4 Alcohols and carboxylic acids (Higher)

4.7.5 Chemical analysis of organic compounds (Higher)

4.7.3.2 Condensation polymerisation (HT only)

4.7.3.3 Amino acids (HT only)

4.9 Chemistry of the atmosphere

Higher combined

4.9.1 Composition and evolution of the Earth’s atmosphere

4.9.2 Carbon dioxide and methane as greenhouse gases

4.9.3 Global climate change

4.9.4 Atmospheric pollutants

4.9.1 Composition and evolution of the Earth’s atmosphere

4.9.2 Carbon dioxide and methane as greenhouse gases

4.9.3 Global climate change

4.9.1.1 The proportions of different gases in the atmosphere

4.9.1.2 The Earth's early atmosphere

4.9.1.3 How oxygen increased

4.9.1.4 How carbon dioxide decreased

4.9.2.1 Greenhouse gases

4.9.2.2 Human activities which contribute to an increase in greenhouse gases in the atmosphere

4.9.2.3 Global climate change

4.9.2.4 The carbon footprint and its reduction

4.9.3.1 Atmospheric pollutants from fuels

4.9.3.2 Properties and effects of atmospheric pollutants

4.10 Using resources

Higher combined

4.10.1 Using the Earth’s resources and obtaining potable water

4.10.2 Life cycle assessments and recycling

4.10.3 Corrosion and alloys

4.10.4 Ceramics, polymers and composites

4.10.5 The Haber process and NPK fertilisers

4.10.1 Using the Earth’s resources and obtaining potable water

4.10.2 Life cycle assessments and recycling

4.10.3 Corrosion and alloys

4.10.4 Ceramics, polymers and composites

4.10.1.1 Using the Earth's resources and sustainable development

4.10.1.2 Potable water

4.10.1.3 Waste water treatment

4.10.2.1 Life cycle assessment

4.10.2.2 Ways of reducing the use of resources

4.10.3.1 Corrosion and its prevention

4.10.3.2 Alloys as useful materials

4.10.3.3 Ceramics, polymers and composites

4.10.4.1 The Haber process

4.10.4.2 Production and uses of NPK fertilisers

Triple only

4.10.1.4 Alternative methods of extracting metals (HT only)

Paper 2 — Required practicals

Higher combined

Required practicals (Paper 2)