Edexcel · GCSE (9–1) · Edexcel Combined Science and Edexcel Separate Sciences
GCSE Edexcel
Science Revision.
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Chapter codes are textbook labels. Topic view groups their revision pages under the official specification topics. Physics Topic 1 contains key concepts and skills used throughout the physics chapters; it has no separate chapter page.
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Units and core practicals
57 Edexcel Combined Science resourcesNo matching resources
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Biology
ResourcesRevision units
Key concepts in biology
Topic 1 — Key concepts in biology
Cells, enzymes and transport
Cells and control
Topic 2 — Cells and control
Cell division, growth and the nervous system
Genetics
Topic 3 — Genetics
DNA, inheritance and variation
Natural selection and genetic modification
Topic 4 — Natural selection and genetic modification
Evolution, selective breeding and biotechnology
Health, disease and the development of medicines
Topic 5 — Health, disease and the development of medicines
Pathogens, immunity and medicines
Plant structures and their functions
Topic 6 — Plant structures and their functions
Photosynthesis and transport in plants
Animal coordination, control and homeostasis
Topic 7 — Animal coordination, control and homeostasis
Hormones and keeping internal conditions stable
Exchange and transport in animals
Topic 8 — Exchange and transport in animals
Gas exchange, circulation and respiration
Ecosystems and material cycles
Topic 9 — Ecosystems and material cycles
Food webs, biodiversity and nutrient cycles
Key concepts in biology
Topic 1 — Key concepts in biology
Cells, enzymes and transport
Cells and control
Topic 2 — Cells and control
Cell division, growth and the nervous system
Genetics
Topic 3 — Genetics
DNA, inheritance and variation
Natural selection and genetic modification
Topic 4 — Natural selection and genetic modification
Evolution, selective breeding and biotechnology
Health, disease and the development of medicines
Topic 5 — Health, disease and the development of medicines
Pathogens, immunity and medicines
Plant structures and their functions
Topic 6 — Plant structures and their functions
Photosynthesis and transport in plants
Animal coordination, control and homeostasis
Topic 7 — Animal coordination, control and homeostasis
Hormones and keeping internal conditions stable
Exchange and transport in animals
Topic 8 — Exchange and transport in animals
Gas exchange, circulation and respiration
Ecosystems and material cycles
Topic 9 — Ecosystems and material cycles
Food webs, biodiversity and nutrient cycles
Topic 2 — Cells and control
Revision chapters
Topic 3 — Genetics
Revision chapters
Topic 4 — Natural selection and genetic modification
Revision chapters
Topic 5 — Health, disease and the development of medicines
Revision chapters
Topic 6 — Plant structures and their functions
Revision chapters
Topic 7 — Animal coordination, control and homeostasis
Revision chapters
Topic 8 — Exchange and transport in animals
Revision chapters
Topic 9 — Ecosystems and material cycles
Revision chapters
Topic 1 — Key concepts in biology
Revision chapters
Topic 2 — Cells and control
Revision chapters
Topic 3 — Genetics
Revision chapters
Topic 4 — Natural selection and genetic modification
Revision chapters
Topic 5 — Health, disease and the development of medicines
Revision chapters
Topic 6 — Plant structures and their functions
Revision chapters
Topic 7 — Animal coordination, control and homeostasis
Revision chapters
Topic 8 — Exchange and transport in animals
Revision chapters
Topic 9 — Ecosystems and material cycles
Revision chapters
Core practicals
Microscopy and biological drawings
Topic 1 — Key concepts in biology
Prepare microscope slides, calculate magnification and produce biological drawings.
Effect of pH on amylase
Topic 1 — Key concepts in biology
Investigate how pH affects amylase activity using the iodine test.
Food tests
Topic 1 — Key concepts in biology
Use chemical tests to identify sugars, starch, protein and lipids.
Osmosis in potato cylinders
Topic 1 — Key concepts in biology
Investigate osmosis through changes in the mass of potato cylinders.
Antimicrobials and microbial cultures
Topic 5 — Health, disease and the development of medicines
Use aseptic techniques to investigate antimicrobial effects on microbial growth.
Light intensity and photosynthesis
Topic 6 — Plant structures and their functions
Investigate how light intensity affects the rate of photosynthesis.
Respiration using a respirometer
Topic 8 — Exchange and transport in animals
Measure respiration using a respirometer and control relevant variables.
Quadrats and belt transects
Topic 9 — Ecosystems and material cycles
Estimate abundance and investigate distribution using quadrats and belt transects.
Chemistry
ResourcesRevision units
States of matter
Topic 2 — States of matter and mixtures
Particles and changes of state
Methods of separating and purifying substances
Topic 2 — States of matter and mixtures
Mixtures, chromatography and distillation
Atomic structure
Topic 1 — Key concepts in chemistry
Atoms, isotopes and electronic configuration
The periodic table
Topic 1 — Key concepts in chemistry
Elements, groups and periods
Ionic bonding
Topic 1 — Key concepts in chemistry
Ions and ionic compounds
Covalent bonding
Topic 1 — Key concepts in chemistry
Shared electrons and molecules
Types of substance
Topic 1 — Key concepts in chemistry
Structures, bonding and material properties
Acids and alkalis
Topic 3 — Chemical changes
pH, neutralisation and making salts
Calculations involving masses
Topic 1 — Key concepts in chemistry
Relative masses, conservation of mass and moles
Electrolytic processes
Topic 3 — Chemical changes
Electrolysis of molten and aqueous substances
Obtaining and using metals
Topic 4 — Extracting metals and equilibria
Reactivity, extraction and recycling
Dynamic equilibria
Topic 4 — Extracting metals and equilibria
Reversible reactions and equilibrium
Groups in the periodic table
Topic 6 — Groups in the periodic table
Group 1, Group 7 and Group 0
Rates of reaction
Topic 7 — Rates of reaction and energy changes
Collision theory, catalysts and reaction rates
Heat energy changes in chemical reactions
Topic 7 — Rates of reaction and energy changes
Exothermic and endothermic reactions
Fuels
Topic 8 — Fuels and Earth science
Hydrocarbons, crude oil and combustion
Earth and atmospheric science
Topic 8 — Fuels and Earth science
The atmosphere, climate and resources
States of matter
Topic 2 — States of matter and mixtures
Particles and changes of state
Methods of separating and purifying substances
Topic 2 — States of matter and mixtures
Mixtures, chromatography and distillation
Atomic structure
Topic 1 — Key concepts in chemistry
Atoms, isotopes and electronic configuration
The periodic table
Topic 1 — Key concepts in chemistry
Elements, groups and periods
Ionic bonding
Topic 1 — Key concepts in chemistry
Ions and ionic compounds
Covalent bonding
Topic 1 — Key concepts in chemistry
Shared electrons and molecules
Types of substance
Topic 1 — Key concepts in chemistry
Structures, bonding and material properties
Acids and alkalis
Topic 3 — Chemical changes
pH, neutralisation and making salts
Calculations involving masses
Topic 1 — Key concepts in chemistry
Relative masses, conservation of mass and moles
Electrolytic processes
Topic 3 — Chemical changes
Electrolysis of molten and aqueous substances
Obtaining and using metals
Topic 4 — Extracting metals and equilibria
Reactivity, extraction and recycling
Reversible reactions and equilibria
Topic 4 — Extracting metals and equilibria
Reversible reactions and equilibrium
Transition metals, alloys and corrosion
Topic 5 — Separate chemistry 1
Metal properties, rust prevention, electroplating and useful alloys
Quantitative analysis
Topic 5 — Separate chemistry 1
Concentrations, titration, percentage yield and atom economy
Dynamic equilibria and calculations involving volumes of gases
Topic 5 — Separate chemistry 1
Gas volumes, Haber-process conditions and fertiliser production
Chemical cells and fuel cells
Topic 5 — Separate chemistry 1
Chemical electricity, hydrogen–oxygen fuel cells and evidence-based comparisons
Groups in the periodic table
Topic 6 — Groups in the periodic table
Group 1, Group 7 and Group 0
Rates of reaction
Topic 7 — Rates of reaction and energy changes
Collision theory, catalysts and reaction rates
Heat energy changes in chemical reactions
Topic 7 — Rates of reaction and energy changes
Exothermic and endothermic reactions
Fuels
Topic 8 — Fuels and Earth science
Hydrocarbons, crude oil and combustion
Earth and atmospheric science
Topic 8 — Fuels and Earth science
The atmosphere, climate and resources
Hydrocarbons
Topic 9 — Separate chemistry 2
Alkanes, alkenes, addition reactions and ethanol production
Alcohols and carboxylic acids
Topic 9 — Separate chemistry 2
Organic functional groups, alcohol combustion and carboxylic-acid reactions
Polymers
Topic 9 — Separate chemistry 2
Addition and condensation polymers, structures, uses and disposal
Qualitative analysis: tests for ions
Topic 9 — Separate chemistry 2
Flame tests, precipitates, gas tests and instrumental analysis
Bulk and surface properties of matter including nanoparticles
Topic 9 — Separate chemistry 2
Choosing ceramics, polymers, composites and metals; nanoparticle uses and risks
Topic 1 — Key concepts in chemistry
Topic 2 — States of matter and mixtures
Revision chapters
Topic 3 — Chemical changes
Revision chapters
Topic 4 — Extracting metals and equilibria
Revision chapters
Topic 6 — Groups in the periodic table
Revision chapters
Topic 7 — Rates of reaction and energy changes
Revision chapters
Topic 8 — Fuels and Earth science
Revision chapters
Topic 1 — Key concepts in chemistry
Topic 2 — States of matter and mixtures
Revision chapters
Topic 3 — Chemical changes
Revision chapters
Topic 4 — Extracting metals and equilibria
Revision chapters
Topic 5 — Separate chemistry 1
Topic 6 — Groups in the periodic table
Revision chapters
Topic 7 — Rates of reaction and energy changes
Revision chapters
Topic 8 — Fuels and Earth science
Revision chapters
Topic 9 — Separate chemistry 2
Core practicals
Separating inks: chromatography and distillation
Topic 2 — States of matter and mixtures
Separate mixtures using chromatography and distillation, and interpret the results.
pH change during neutralisation
Topic 3 — Chemical changes
Measure and explain pH changes as an acid is neutralised.
Making hydrated copper sulfate crystals
Topic 3 — Chemical changes
Prepare, filter and crystallise hydrated copper sulfate from an insoluble base.
Copper sulfate electrolysis
Topic 3 — Chemical changes
Investigate copper sulfate electrolysis and the effects of different electrodes.
Accurate acid–alkali titration
Topic 5 — Separate chemistry 1
Use accurate titration measurements to determine an unknown concentration.
Rates: gas production and disappearing cross
Topic 7 — Rates of reaction and energy changes
Measure reaction rates using gas collection and a disappearing cross.
Identifying ions in unknown salts
Topic 9 — Separate chemistry 2
Use flame, precipitation and gas tests to identify ions in salts.
Comparing alcohol combustion
Topic 9 — Separate chemistry 2
Compare energy transferred by burning alcohols and evaluate heat losses.
Physics
ResourcesRevision units
Motion
Topic 2 — Motion and forces
Speed, velocity, acceleration and motion graphs
Forces and motion
Topic 2 — Motion and forces
Newton’s laws, momentum and stopping distances
Conservation of energy
Topic 3 — Conservation of energy
Energy stores, transfers and efficiency
Waves
Topic 4 — Waves
Wave properties, wave speed and refraction
Light and the electromagnetic spectrum
Topic 5 — Light and the electromagnetic spectrum
Electromagnetic waves, uses and hazards
Radioactivity
Topic 6 — Radioactivity
Radiation, nuclear decay and half-life
Energy — forces doing work
Topic 8 — Energy - Forces doing work
Work done, power and energy transfers
Forces and their effects
Topic 9 — Forces and their effects
Resultant forces and interactions
Electricity and circuits
Topic 10 — Electricity and circuits
Current, potential difference and resistance
Magnetism and the motor effect
Topic 12 — Magnetism and the motor effect
Magnetic fields and forces on currents
Electromagnetic induction
Topic 13 — Electromagnetic induction
Induced voltage and transformers
Particle model
Topic 14 — Particle model
Density, temperature and changes of state
Forces and matter
Topic 15 — Forces and matter
Springs, extension and elastic energy
Motion
Topic 2 — Motion and forces
Speed, velocity, acceleration and motion graphs
Motion and forces
Topic 2 — Motion and forces
Newton’s laws, momentum and stopping distances
Conservation of energy
Topic 3 — Conservation of energy
Energy stores, transfers and efficiency
Waves
Topic 4 — Waves
Wave properties, wave speed and refraction
Light and the electromagnetic spectrum
Topic 5 — Light and the electromagnetic spectrum
Electromagnetic waves, uses and hazards
Radioactivity
Topic 6 — Radioactivity
Radiation, nuclear decay and half-life
Astronomy
Topic 7 — Astronomy
The Solar System, orbits, stellar evolution and evidence for the Big Bang
Energy — forces doing work
Topic 8 — Energy - Forces doing work
Work done, power and energy transfers
Forces and their effects
Topic 9 — Forces and their effects
Resultant forces and interactions
Electricity and circuits
Topic 10 — Electricity and circuits
Current, potential difference and resistance
Static electricity
Topic 11 — Static electricity
Charging by friction, electrostatic forces, earthing and electric fields
Magnetism and the motor effect
Topic 12 — Magnetism and the motor effect
Magnetic fields and forces on currents
Electromagnetic induction
Topic 13 — Electromagnetic induction
Induced voltage and transformers
Particle model
Topic 14 — Particle model
Density, temperature and changes of state
Forces and matter
Topic 15 — Forces and matter
Springs, extension and elastic energy
Topic 2 — Motion and forces
Revision chapters
Topic 3 — Conservation of energy
Revision chapters
Topic 4 — Waves
Revision chapters
Topic 5 — Light and the electromagnetic spectrum
Revision chapters
Topic 6 — Radioactivity
Revision chapters
Topic 8 — Energy - Forces doing work
Revision chapters
Topic 9 — Forces and their effects
Revision chapters
Topic 10 — Electricity and circuits
Revision chapters
Topic 12 — Magnetism and the motor effect
Revision chapters
Topic 13 — Electromagnetic induction
Revision chapters
Topic 14 — Particle model
Revision chapters
Topic 15 — Forces and matter
Revision chapters
Topic 2 — Motion and forces
Revision chapters
Topic 3 — Conservation of energy
Revision chapters
Topic 4 — Waves
Revision chapters
Topic 5 — Light and the electromagnetic spectrum
Revision chapters
Topic 6 — Radioactivity
Revision chapters
Topic 7 — Astronomy
Revision chapters
Topic 8 — Energy - Forces doing work
Revision chapters
Topic 9 — Forces and their effects
Revision chapters
Topic 10 — Electricity and circuits
Revision chapters
Topic 11 — Static electricity
Revision chapters
Topic 12 — Magnetism and the motor effect
Revision chapters
Topic 13 — Electromagnetic induction
Revision chapters
Topic 14 — Particle model
Revision chapters
Topic 15 — Forces and matter
Revision chapters
Core practicals
Force, mass and acceleration
Topic 2 — Motion and forces
Investigate the relationships between force, mass and acceleration.
Wave speed in water and solids
Topic 4 — Waves
Measure wave speed in water and solids using frequency and wavelength.
Refraction through a glass block
Topic 5 — Light and the electromagnetic spectrum
Trace rays through a glass block and measure angles of refraction.
Thermal radiation and surface colour
Topic 5 — Light and the electromagnetic spectrum
Compare the absorption and emission of thermal radiation by different surfaces.
Resistance and series/parallel circuits
Topic 10 — Electricity and circuits
Measure resistance and investigate current and voltage in series and parallel circuits.
Density of solids and liquids
Topic 14 — Particle model
Determine the density of solids and liquids from mass and volume measurements.
Specific heat capacity and melting ice
Topic 14 — Particle model
Investigate heating and melting using energy, mass and temperature measurements.
Spring extension and work done
Topic 15 — Forces and matter
Investigate spring extension, force and the work done in stretching a spring.
Which units belong to each paper?
We use Biology, Chemistry and Physics Paper 1 / Paper 2 names. Unit codes are textbook chapter labels, not official specification topic numbers.
| Course / subject | Paper 1 | Paper 2 |
|---|---|---|
| Edexcel Combined Science · Biology | CB1–CB5 | CB1, CB6–CB9 |
| Edexcel Separate Sciences · Biology | SB1–SB5 | SB1, SB6–SB9 |
| Edexcel Combined Science · Chemistry | CC1–CC12 | CC3–CC7, CC9, CC13–CC17 |
| Edexcel Separate Sciences · Chemistry | SC1–SC16 | SC3–SC7, SC9, SC17–SC26 |
| Edexcel Combined Science · Physics | CP1–CP6 | CP7–CP13 |
| Edexcel Separate Sciences · Physics | SP1–SP7 | SP8–SP15 |
Key concepts in biology and chemistry appear on both papers. Physics units and maths skills apply throughout.
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