AQA GCSE Chemistry
View Course TimetableTheme 1: Atomic Structure and the Periodic Table
Atoms, Elements and Compounds (7 lessons)
Explore atoms, elements and compounds in Chemistry.
Atoms, Elements and Compounds
Discover what atoms, elements and compounds are, chemical symbols and word equations
Start LessonWriting Formulae and Balanced Equations
Learn to write chemical formulae and balance symbol equations step by step
Start LessonMixtures and Separation Techniques
What mixtures are and how to separate them using five physical processes
Start LessonDeveloping the Model of the Atom
How new evidence changed the atomic model from solid spheres to protons and neutrons
Unlock Full CourseProtons, Neutrons and Electrons
Charges and masses of protons, neutrons and electrons, atom sizes, and counting particles
Unlock Full CourseIsotopes and Relative Atomic Mass
What isotopes are and how to calculate relative atomic mass from percentage abundances
Unlock Full CourseElectronic Structure
How electrons fill energy levels and how to write and draw electronic structures
Unlock Full CourseThe Periodic Table (6 lessons)
Explore the periodic table in Chemistry.
The Modern Periodic Table
How the periodic table is ordered and how position links to electrons and reactions
Unlock Full CourseHow the Periodic Table Developed
How Mendeleev used atomic weights, gaps and predictions to build the periodic table
Unlock Full CourseMetals and Non-metals
How metals and non-metals differ, where they sit, and why electrons decide it
Unlock Full CourseGroup 0: The Noble Gases
Why noble gases are unreactive, and how their boiling points change down the group
Unlock Full CourseGroup 1: The Alkali Metals
How the alkali metals react with oxygen, chlorine and water, and why reactivity increases
Unlock Full CourseGroup 7: The Halogens
Halogen properties, trends down Group 7, the compounds they form and displacement reactions
Unlock Full CourseTransition Metals (1 lessons)
Explore transition metals in Chemistry.
Transition Metals
How transition metals differ from Group 1, their ions, colours and catalysts
Unlock Full CourseTheme 2: Bonding, Structure and the Properties of Matter
Chemical Bonds (4 lessons)
Explore chemical bonds in Chemistry.
Ionic Bonding
The three types of chemical bond, ionic bonding, dot and cross diagrams and ion charges
Unlock Full CourseIonic Compounds and Their Structure
How ions form giant lattices, the diagrams used to show them, and empirical formulae
Unlock Full CourseCovalent Bonding
How atoms share electrons, drawing small molecules and deducing molecular formulae from diagrams
Unlock Full CourseMetallic Bonding
How metal atoms form giant structures held by strong bonds with delocalised electrons
Unlock Full CourseStructure and Properties (4 lessons)
Explore structure and properties in Chemistry.
The Three States of Matter
Solids, liquids and gases in the particle model, changes of state and state symbols
Unlock Full CourseProperties of Ionic Compounds and Small Molecules
Why ionic compounds melt at high temperatures and conduct, while small molecules do not
Unlock Full CoursePolymers and Giant Covalent Structures
Why polymers are solids and giant covalent substances have very high melting points
Unlock Full CourseProperties of Metals and Alloys
Why metals melt at high temperatures, bend, conduct, and why alloys are harder
Unlock Full CourseStructure and Bonding of Carbon (2 lessons)
Explore structure and bonding of carbon in Chemistry.
Diamond and Graphite
Explain the hardness, melting points and conductivity of diamond and graphite from their bonding.
Unlock Full CourseGraphene and Fullerenes
Explore graphene, Buckminsterfullerene and carbon nanotubes: their structures, properties and real uses.
Unlock Full CourseNanoparticles (2 lessons)
Explore nanoparticles in Chemistry.
Nanoparticles and Their Properties
Discover how tiny nanoparticles are and why their huge surface area changes their behaviour.
Unlock Full CourseUses and Risks of Nanoparticles
Explore how nanoparticles are used and weigh up their benefits against possible risks.
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Conservation of Mass and Formula Mass (4 lessons)
Explore conservation of mass and formula mass in Chemistry.
Conservation of Mass
Why no atoms are lost or made in reactions, and using it in calculations
Unlock Full CourseRelative Formula Mass
Calculate relative formula mass, check equations balance by mass, and find percentage by mass
Unlock Full CourseMass Changes When Gases Are Involved
Why mass seems to rise or fall when a gas is a reactant or product
Unlock Full CourseUncertainty in Chemical Measurements
Learn why every measurement has uncertainty and estimate it from the range
Unlock Full CourseMoles (5 lessons)
Explore moles in Chemistry.
The Mole and the Avogadro Constant
The mole, the Avogadro constant and calculating moles from mass and back again
Unlock Full CourseMoles and Masses in Equations
Using balanced equations and moles to calculate masses of reactants and products
Unlock Full CourseUsing Moles to Balance Equations
Using reacting masses and moles to work out the balancing numbers in equations
Unlock Full CourseLimiting Reactants
Spot the limiting reactant using moles and work out the maximum product mass
Unlock Full CourseConcentration of Solutions
Calculate solution concentration in g/dm3 and find the mass of dissolved solute
Unlock Full CourseYield and Atom Economy (2 lessons)
Explore yield and atom economy in Chemistry.
Percentage Yield
Why actual yield falls short and how to calculate percentage yield from masses
Unlock Full CourseAtom Economy
Calculate atom economy from balanced equations and see why less waste matters
Unlock Full CourseConcentrations and Gas Volumes (2 lessons)
Explore concentrations and gas volumes in Chemistry.
Concentrations in Moles per Cubic Decimetre
Use concentrations in mol/dm3, convert to g/dm3 and solve titration calculations
Unlock Full CourseVolumes of Gases
Use 24 dm3 per mole to calculate gas volumes from masses and balanced equations
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Reactivity of Metals (3 lessons)
Explore reactivity of metals in Chemistry.
Metal Oxides and the Reactivity Series
Oxidation, reduction and the reactivity series from metals reacting with water, acids and oxygen
Unlock Full CourseExtracting Metals by Reduction
Native gold, metal ores, and extracting less reactive metals from oxides using carbon
Unlock Full CourseOxidation and Reduction in Terms of Electrons
Oxidation and reduction as electron loss and gain, and ionic equations for displacement
Unlock Full CourseReactions of Acids (8 lessons)
Explore reactions of acids in Chemistry.
Acids Reacting with Metals
How magnesium, zinc and iron react with acids to make salts and hydrogen
Unlock Full CourseNeutralisation and Naming Salts
How acids are neutralised by alkalis, bases and carbonates, and naming salts
Unlock Full CourseMaking Soluble Salts
Make soluble salts from acids and insoluble solids, then filter and crystallise them
Unlock Full CourseRequired Practical: Making a Pure Dry Salt
Required practical: make pure dry copper sulfate crystals safely, step by step
Unlock Full CourseThe pH Scale and Neutralisation
Learn how H+ and OH- ions decide acidity, read the pH scale and measure pH.
Unlock Full CourseTitrations
Learn how titrations measure the volumes of acid and alkali that react exactly.
Unlock Full CourseRequired Practical: Titration
Carry out the titration practical accurately, record results, spot errors and calculate concentrations.
Unlock Full CourseStrong and Weak Acids
Learn how strong and weak acids differ in ionisation, and how pH links to hydrogen ions.
Unlock Full CourseElectrolysis (5 lessons)
Explore electrolysis in Chemistry.
The Process of Electrolysis
Learn how electrolysis splits molten ionic compounds, and predict the products at each electrode.
Unlock Full CourseExtracting Metals by Electrolysis
Learn why reactive metals need electrolysis, how aluminium is made, and why anodes burn away.
Unlock Full CourseElectrolysis of Aqueous Solutions
How to predict the products when aqueous solutions are electrolysed using inert electrodes
Unlock Full CourseRequired Practical: Electrolysis
Plan and carry out electrolysis of aqueous solutions with inert electrodes and test the gases
Unlock Full CourseHalf Equations at the Electrodes
Write and balance half equations for the reactions at the cathode and anode in electrolysis.
Unlock Full CourseTheme 5: Energy Changes
Exothermic and Endothermic Reactions (4 lessons)
Explore exothermic and endothermic reactions in Chemistry.
Exothermic and Endothermic Reactions
Learn how exothermic and endothermic reactions move energy and change the temperature of the surroundings.
Unlock Full CourseRequired Practical: Temperature Changes
Carry out required practical 4 and measure temperature changes when solutions react
Unlock Full CourseReaction Profiles
Learn why reactions need activation energy and how to draw and read reaction profiles.
Unlock Full CourseBond Energies
Higher tier: use bond energies to calculate energy changes and explain exothermic and endothermic reactions.
Unlock Full CourseChemical Cells and Fuel Cells (2 lessons)
Explore chemical cells and fuel cells in Chemistry.
Cells and Batteries
How chemical cells make electricity, what sets voltage, batteries in series and rechargeable cells.
Unlock Full CourseFuel Cells
How hydrogen fuel cells make electricity and how they compare with rechargeable batteries
Unlock Full CourseTheme 6: The Rate and Extent of Chemical Change
Rate of Reaction (5 lessons)
Explore rate of reaction in Chemistry.
Measuring and Calculating Rates
Calculate the mean rate of a reaction and read the rate from graphs and tangents.
Unlock Full CourseFactors Affecting the Rate
Learn the five factors that change how fast reactions go and how to investigate them.
Unlock Full CourseRequired Practical: Rates of Reaction
Plan and carry out the rates practical using gas volume and the disappearing cross.
Unlock Full CourseCollision Theory and Activation Energy
Use collision theory and activation energy to explain how conditions change the rate of reaction.
Unlock Full CourseCatalysts
How catalysts speed up reactions by lowering activation energy, enzymes, and drawing catalysed reaction profiles.
Unlock Full CourseReversible Reactions and Equilibrium (3 lessons)
Explore reversible reactions and equilibrium in Chemistry.
Reversible Reactions and Equilibrium
Learn how reversible reactions work, their energy changes, and what equilibrium means in a closed system.
Unlock Full CourseChanging Concentration at Equilibrium
Use Le Chatelier's Principle to predict how changing concentration moves a reversible reaction at equilibrium.
Unlock Full CourseTemperature, Pressure and Equilibrium
Predict how changing temperature and pressure moves the position of equilibrium in reversible reactions.
Unlock Full CourseTheme 7: Organic Chemistry
Crude Oil and Fuels (4 lessons)
Explore crude oil and fuels in Chemistry.
Crude Oil, Hydrocarbons and Alkanes
How crude oil formed, what hydrocarbons are, and the first four alkanes with their formulae.
Unlock Full CourseFractional Distillation and Petrochemicals
How crude oil is split into fuels and feedstock by fractional distillation
Unlock Full CourseProperties of Hydrocarbons
How hydrocarbon size affects boiling point, viscosity and flammability, and writing complete combustion equations.
Unlock Full CourseCracking and Alkenes
Learn how cracking breaks large hydrocarbons into fuels and alkenes, and test for alkenes.
Unlock Full CourseAlkenes, Alcohols and Carboxylic Acids (4 lessons)
Explore alkenes, alcohols and carboxylic acids in Chemistry.
Structure and Formulae of Alkenes
Learn what alkenes are, their formula CnH2n, and the first four members.
Unlock Full CourseReactions of Alkenes
Learn how alkenes burn and add hydrogen, steam and halogens across the C=C bond.
Unlock Full CourseAlcohols
Learn the alcohol functional group, its reactions, uses and how yeast makes ethanol.
Unlock Full CourseCarboxylic Acids and Esters
Learn the -COOH group, the first four carboxylic acids, their reactions, and how esters form.
Unlock Full CoursePolymers (3 lessons)
Explore polymers in Chemistry.
Addition Polymerisation
Learn how alkene monomers join to make polymers, and draw repeating units.
Unlock Full CourseCondensation Polymers and Amino Acids
Learn how condensation polymerisation makes polyesters, and how amino acids join to form polypeptides and proteins.
Unlock Full CourseDNA and Natural Polymers
Learn what DNA is, how its double helix forms, and the monomers of natural polymers.
Unlock Full CourseTheme 8: Chemical Analysis
Purity and Chromatography (3 lessons)
Explore purity and chromatography in Chemistry.
Pure Substances and Formulations
Learn what pure means in chemistry, test purity with melting points, and spot formulations.
Unlock Full CourseChromatography
How paper chromatography separates mixtures, how to calculate Rf values and spot purity
Unlock Full CourseRequired Practical: Chromatography
Carry out paper chromatography step by step, explain each stage and calculate Rf values.
Unlock Full CourseIdentification of Common Gases (1 lessons)
Explore identification of common gases in Chemistry.
Tests for Common Gases
Learn the tests and positive results for hydrogen, oxygen, carbon dioxide and chlorine gases.
Unlock Full CourseIdentifying Ions (5 lessons)
Explore identifying ions in Chemistry.
Flame Tests
Use flame tests to identify metal ions by colour and learn why colours get masked.
Unlock Full CourseMetal Hydroxide Tests
Use sodium hydroxide to identify metal ions from precipitate colours and write balanced equations.
Unlock Full CourseTests for Carbonates, Halides and Sulfates
Learn the chemical tests that identify carbonate, halide and sulfate ions in solutions.
Unlock Full CourseRequired Practical: Identifying Ions
Plan and carry out tests to identify the ions in an unknown ionic compound safely.
Unlock Full CourseInstrumental Methods and Flame Emission Spectroscopy
Learn how instrumental methods and flame emission spectroscopy identify metal ions quickly and accurately.
Unlock Full CourseTheme 9: Chemistry of the Atmosphere
The Earth's Atmosphere (2 lessons)
Explore the earth's atmosphere in Chemistry.
The Atmosphere Today and Long Ago
Learn what today's atmosphere is made of and one theory of how the early atmosphere formed.
Unlock Full CourseHow Oxygen Increased and Carbon Dioxide Decreased
How algae and plants raised oxygen and lowered carbon dioxide, forming limestone, coal, oil and gas.
Unlock Full CourseGreenhouse Gases (2 lessons)
Explore greenhouse gases in Chemistry.
Greenhouse Gases and Human Activity
How greenhouse gases warm the Earth, human sources of carbon dioxide and methane, judging evidence.
Unlock Full CourseClimate Change and Carbon Footprints
Learn four effects of climate change, what a carbon footprint is, and how to reduce it.
Unlock Full CourseAtmospheric Pollutants (1 lessons)
Explore atmospheric pollutants in Chemistry.
Atmospheric Pollutants
Learn how burning fuels makes harmful pollutants and the problems each one causes.
Unlock Full CourseTheme 10: Using Resources
Earth's Resources and Water (5 lessons)
Explore earth's resources and water in Chemistry.
Using Resources Sustainably
Learn how we use finite and renewable resources, and what sustainable development means for chemistry.
Unlock Full CoursePotable Water
Learn how drinking water is made from fresh water and from sea water.
Unlock Full CourseRequired Practical: Water Purification
Test the pH and dissolved solids of water samples, then purify water by distillation.
Unlock Full CourseWaste Water Treatment
Four stages of sewage treatment and how hard drinking water is to get.
Unlock Full CourseAlternative Methods of Extracting Metals
Learn how plants and bacteria extract copper from low-grade ores, and how to evaluate them.
Unlock Full CourseLife Cycle Assessment and Recycling (2 lessons)
Explore life cycle assessment and recycling in Chemistry.
Life Cycle Assessments
Learn the stages of a life cycle assessment and compare plastic and paper shopping bags.
Unlock Full CourseReduce, Reuse and Recycle
Learn how reducing, reusing and recycling metals and glass saves resources, energy and waste.
Unlock Full CourseUsing Materials (3 lessons)
Explore using materials in Chemistry.
Corrosion and Its Prevention
Learn how iron rusts, the conditions needed, and how barriers and zinc protect metals.
Unlock Full CourseAlloys as Useful Materials
Learn the make-up and uses of bronze, brass, gold alloys, steels and aluminium alloys
Unlock Full CourseCeramics, Polymers and Composites
Learn about glass, ceramics, polymers and composites and how to choose materials for uses.
Unlock Full CourseThe Haber Process and Fertilisers (2 lessons)
Explore the haber process and fertilisers in Chemistry.
The Haber Process
How ammonia is made from nitrogen and hydrogen, with conditions, recycling and compromise.
Unlock Full CourseNPK Fertilisers
Learn how NPK fertilisers are made from ammonia, phosphate rock and mined potassium salts.
Unlock Full CourseTheme 11: Working Scientifically
Scientific Thinking (1 lessons)
Explore scientific thinking in Chemistry.
How Science Works
How scientific ideas change, how models work, weighing risks and benefits, and why peer review matters.
Unlock Full CourseExperimental Skills (1 lessons)
Explore experimental skills in Chemistry.
Planning Experiments and Variables
How to make hypotheses, plan fair tests, choose apparatus, work safely, sample and evaluate methods.
Unlock Full CourseAnalysing and Evaluating Data (2 lessons)
Explore analysing and evaluating data in Chemistry.
Presenting and Processing Data
Present results in tables and graphs, calculate means, use significant figures, and show uncertainty.
Unlock Full CourseInterpreting and Evaluating Data
Spot trends, test hypotheses against data, and judge results using accuracy, precision and error types.
Unlock Full CourseUnits and Maths Skills (1 lessons)
Explore units and maths skills in Chemistry.
Units, Prefixes and Significant Figures
Use SI units, prefixes and IUPAC names, convert units, and round answers to significant figures.
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