AQA GCSE Combined Science Trilogy

4.1.1 Cell structure

• 4.1.1.1 Eukaryotes and prokaryotes Free
• 4.1.1.2 Animal and plant cells 2 notes
  • Sub-cellular structures and their functions Pro
  • Cell microscopy and estimating sub-cellular size Pro
• 4.1.1.3 Cell specialisation Pro
• 4.1.1.4 Cell differentiation Pro
• 4.1.1.5 Microscopy Pro

4.1.2 Cell division

• 4.1.2.1 Chromosomes Pro
• 4.1.2.2 Mitosis and the cell cycle Pro
• 4.1.2.3 Stem cells Pro

4.1.3 Transport in cells

• 4.1.3.1 Diffusion 2 notes
  • Diffusion and factors affecting its rate Pro
  • Surface area to volume ratios and specialised exchange surfaces Pro
• 4.1.3.2 Osmosis Pro
• 4.1.3.3 Active transport Pro

• Principles of organisation Free

4.2.2 Animal organ systems

• 4.2.2.1 Human digestive system 3 notes
  • Enzyme action and investigating pH Pro
  • Digestion, absorption and bile Pro
  • Food tests: required practical Pro
• 4.2.2.2 Heart and blood vessels Pro
• 4.2.2.3 Blood Pro
• 4.2.2.4 Coronary heart disease Pro
• 4.2.2.5 Health issues Pro
• 4.2.2.6 Lifestyle and non-communicable diseases Pro
• 4.2.2.7 Cancer Pro

4.2.3 Plant tissues and organs

• 4.2.3.1 Plant tissues Pro
• 4.2.3.2 Plant organ system 2 notes
  • Plant transport structures and processes Pro
  • Transpiration rates: environmental factors and data Pro

4.3.1 Communicable diseases

• 4.3.1.1 Infectious diseases Free
• 4.3.1.2 Viral diseases Pro
• 4.3.1.3 Bacterial diseases Pro
• 4.3.1.4 Fungal diseases Pro
• 4.3.1.5 Protist diseases Pro
• 4.3.1.6 Human defence systems Pro
• 4.3.1.7 Vaccination Pro
• 4.3.1.8 Antibiotics and painkillers Pro
• 4.3.1.9 Discovery and development of drugs Pro

4.4.1 Photosynthesis

• 4.4.1.1 Photosynthetic Reaction Free
• 4.4.1.2 Rate of Photosynthesis 2 notes
  • Limiting Factors and Greenhouse Conditions Pro
  • Investigating Light Intensity and Measuring Photosynthesis Pro
• 4.4.1.3 Uses of Glucose Pro

4.4.2 Respiration

• 4.4.2.1 Aerobic and Anaerobic Respiration Pro
• 4.4.2.2 Response to Exercise Pro
• 4.4.2.3 Metabolism Pro

4.5.1 Homeostasis

• Principles of Homeostasis Free

4.5.2 Human Nervous System

• Nervous System Structure and Function 2 notes
  • Nervous Coordination and Reflex Arcs Pro
  • Investigating Reaction Time and Interpreting Data Pro

4.5.3 Hormonal Coordination

• 4.5.3.1 Human Endocrine System Pro
• 4.5.3.2 Blood Glucose Control Pro
• 4.5.3.3 Reproductive Hormones Pro
• 4.5.3.4 Contraception Methods Pro
• 4.5.3.5 Hormonal Infertility Treatments Pro
• 4.5.3.6 Feedback Systems Pro

4.6.1 Reproduction

• 4.6.1.1 Sexual and Asexual Reproduction Free
• 4.6.1.2 Meiosis Pro
• 4.6.1.3 DNA and the Genome Pro
• 4.6.1.4 Genetic Inheritance Pro
• 4.6.1.5 Inherited Disorders Pro
• 4.6.1.6 Sex Determination Pro

4.6.2 Variation and Evolution

• 4.6.2.1 Variation Pro
• 4.6.2.2 Evolution Pro
• 4.6.2.3 Selective Breeding Pro
• 4.6.2.4 Genetic Engineering Pro

4.6.3 Understanding of Genetics and Evolution

• 4.6.3.1 Evidence for Evolution Pro
• 4.6.3.2 Fossils Pro
• 4.6.3.3 Extinction Pro
• 4.6.3.4 Resistant Bacteria Pro

4.6.4 Classification of Organisms

• Classification Systems Pro

4.7.1 Adaptations, Interdependence, and Competition

• 4.7.1.1 Communities Free
• 4.7.1.2 Abiotic Factors Pro
• 4.7.1.3 Biotic Factors Pro
• 4.7.1.4 Adaptations and Extremophiles Pro

4.7.2 Ecosystem Organization

• 4.7.2.1 Levels of Organization and Trophic Relationships 2 notes
  • Food Chains and Predator–Prey Cycles Pro
  • Ecological Sampling and Data Analysis Pro
• 4.7.2.2 Cycling of Materials in Ecosystems Pro

4.7.3 Biodiversity and Human Interactions

• 4.7.3.1 Importance of Biodiversity Pro
• 4.7.3.2 Waste Management and Pollution Pro
• 4.7.3.3 Human Land Use and Habitat Destruction Pro
• 4.7.3.4 Causes and Effects of Deforestation Pro
• 4.7.3.5 Biological Consequences of Global Warming Pro
• 4.7.3.6 Maintaining Ecosystems and Biodiversity Pro

5.1.1 Atomic Models, Isotopes, and Charges

• 5.1.1.1 Atoms, Elements, and Compounds 2 notes
  • Atoms, Elements, Compounds and Chemical Formulae Free
  • Representing Chemical Reactions and Balancing Equations Free
• 5.1.1.2 Separation of Mixtures Pro
• 5.1.1.3 Development of the Atomic Model Pro
• 5.1.1.4 Charges of Subatomic Particles Pro
• 5.1.1.5 Size, Mass, and Isotopes Pro
• 5.1.1.6 Relative Atomic Mass Pro
• 5.1.1.7 Electronic Structure Pro

5.1.2 The Periodic Table

• 5.1.2.1 Periodic Table Organization Pro
• 5.1.2.2 Development of the Periodic Table Pro
• 5.1.2.3 Metals and Non-Metals Pro
• 5.1.2.4 Group 0 Noble Gases Pro
• 5.1.2.5 Group 1 Alkali Metals Pro
• 5.1.2.6 Group 7 Halogens Pro

5.2.1 Chemical Bonds

• 5.2.1.1 Types of Chemical Bonds Free
• 5.2.1.2 Ionic Bonding Mechanisms Pro
• 5.2.1.3 Structure of Ionic Compounds Pro
• 5.2.1.4 Covalent Bonding and Structures Pro
• 5.2.1.5 Metallic Bonding Mechanisms Pro

5.2.2 Bonding, Structure, and Substance Properties

• 5.2.2.1 States of Matter Pro
• 5.2.2.2 Chemical State Symbols Pro
• 5.2.2.3 Properties of Ionic Compounds Pro
• 5.2.2.4 Properties of Small Molecules Pro
• 5.2.2.5 Properties of Polymers Pro
• 5.2.2.6 Giant Covalent Structures Pro
• 5.2.2.7 Properties of Metals and Alloys Pro
• 5.2.2.8 Metals as Conductors Pro

5.2.3 Carbon Structure and Bonding

• 5.2.3.1 Properties of Diamond Pro
• 5.2.3.2 Properties of Graphite Pro
• 5.2.3.3 Graphene and Fullerenes Pro

5.3.1 Conservation of Mass and Chemical Equations

• 5.3.1.1 Conservation of Mass and Balanced Equations Free
• 5.3.1.2 Relative Formula Mass Pro
• 5.3.1.3 Mass Changes Involving Gases Pro
• 5.3.1.4 Chemical Measurements and Uncertainty Pro

5.3.2 Amount of Substance and Masses

• 5.3.2.1 Moles Pro
• 5.3.2.2 Amounts of Substances in Equations Pro
• 5.3.2.3 Using Moles to Balance Equations Pro
• 5.3.2.4 Limiting Reactants Pro
• 5.3.2.5 Concentration of Solutions Pro

5.4.1 Reactivity of Metals

• 5.4.1.1 Metal Oxides Free
• 5.4.1.2 The Reactivity Series Pro
• 5.4.1.3 Extraction of Metals and Reduction Pro
• 5.4.1.4 Oxidation and Reduction via Electrons Pro

5.4.2 Reactions of Acids

• 5.4.2.1 Reactions of Acids with Metals Pro
• 5.4.2.2 Neutralisation and Salt Production Pro
• 5.4.2.3 Soluble Salts Pro
• 5.4.2.4 The pH Scale and Neutralisation Pro
• 5.4.2.5 Strong and Weak Acids Pro

5.4.3 Electrolysis

• 5.4.3.1 The Process of Electrolysis Pro
• 5.4.3.2 Electrolysis of Molten Ionic Compounds Pro
• 5.4.3.3 Using Electrolysis to Extract Metals Pro
• 5.4.3.4 Electrolysis of Aqueous Solutions Pro
• 5.4.3.5 Half Equations at Electrodes Pro

5.5.1 Exothermic and Endothermic Reactions

• 5.5.1.1 Energy Transfer in Reactions 2 notes
  • Exothermic and Endothermic Reactions: Energy Transfers and Uses Free
  • Required Practical 10: Temperature Changes in Reacting Solutions Free
• 5.5.1.2 Reaction Profiles Pro
• 5.5.1.3 The Energy Change of Reactions Pro

5.6.1 Reaction Rates

• 5.6.1.1 Reaction Rate Calculation Free
• 5.6.1.2 Factors Affecting Reaction Rates Pro
• 5.6.1.3 Collision Theory and Activation Energy Pro
• 5.6.1.4 Chemical Catalysts Pro

5.6.2 Reversible Reactions and Equilibrium

• 5.6.2.1 Reversible Chemical Reactions Pro
• 5.6.2.2 Energy Changes in Reversible Reactions Pro
• 5.6.2.3 Chemical Equilibrium Pro
• 5.6.2.4 Changing Equilibrium Conditions Pro
• 5.6.2.5 Effect of Concentration on Equilibrium Pro
• 5.6.2.6 Effect of Temperature on Equilibrium Pro
• 5.6.2.7 Effect of Pressure on Equilibrium Pro

5.7.1 Carbon Compounds and Feedstock

• 5.7.1.1 Crude Oil and Alkanes Free
• 5.7.1.2 Fractional Distillation Pro
• 5.7.1.3 Hydrocarbon Properties Pro
• 5.7.1.4 Cracking and Alkenes Pro

5.8.1 Purity and Chromatography

• 5.8.1.1 Pure Substances Free
• 5.8.1.2 Chemical Formulations Pro
• 5.8.1.3 Chromatography Pro

5.8.2 Identification of Gases

• 5.8.2.1 Hydrogen Gas Test Pro
• 5.8.2.2 Oxygen Gas Test Pro
• 5.8.2.3 Carbon Dioxide Gas Test Pro
• 5.8.2.4 Chlorine Gas Test Pro

5.9.1 Composition and Evolution of Earth's Atmosphere

• 5.9.1.1 Atmospheric Gas Proportions Free
• 5.9.1.2 The Early Atmosphere Pro
• 5.9.1.3 Increase of Atmospheric Oxygen Pro
• 5.9.1.4 Decrease of Atmospheric Carbon Dioxide Pro

5.9.2 Greenhouse Gases

• 5.9.2.1 Greenhouse Effect Pro
• 5.9.2.2 Human Impact on Greenhouse Gases Pro
• 5.9.2.3 Global Climate Change Pro
• 5.9.2.4 Carbon Footprint Reduction Pro

5.9.3 Atmospheric Pollutants and Sources

• 5.9.3.1 Pollutants from Combustion Pro
• 5.9.3.2 Effects of Atmospheric Pollutants Pro

5.10.1 Resources and Potable Water

• 5.10.1.1 Resources and Sustainable Development Free
• 5.10.1.2 Potable Water Production Pro
• 5.10.1.3 Waste Water Treatment Pro
• 5.10.1.4 Alternative Metal Extraction (HT) Pro

5.10.2 Life Cycle Assessment and Recycling

• 5.10.2.1 Life Cycle Assessment Pro
• 5.10.2.2 Reducing Resource Use Pro

6.1.1 Energy Changes and Storage

• 6.1.1.1 Energy Stores and Systems Free
• 6.1.1.2 Calculating Energy Changes Pro
• 6.1.1.3 Specific Heat Capacity Pro
• 6.1.1.4 Power Pro

6.1.2 Conservation and Dissipation of Energy

• 6.1.2.1 Energy Transfers Pro
• 6.1.2.2 Energy Efficiency Pro

• 6.1.3 Global Energy Resources Pro

6.2.1 Current, Potential Difference and Resistance

• 6.2.1.1 Circuit Diagram Symbols Free
• 6.2.1.2 Electrical Charge and Current Pro
• 6.2.1.3 Current, Resistance and Potential Difference Relationship 2 notes
  • Current, Potential Difference and Resistance Pro
  • Required Practical: Investigating Resistance Pro
• 6.2.1.4 Resistors and Circuit Components 2 notes
  • Resistance and I–V Characteristics Pro
  • Thermistors and LDRs Pro

• 6.2.2 Series and Parallel Circuits Pro

6.2.3 Domestic Electricity and Safety

• 6.2.3.1 Direct and Alternating Potential Difference Pro
• 6.2.3.2 Mains Electricity and Wiring Pro

6.2.4 Electrical Energy Transfers

• 6.2.4.1 Electrical Power Pro
• 6.2.4.2 Appliance Energy Transfers Pro
• 6.2.4.3 The National Grid Pro

6.3.1 Changes of State and Particle Model

• 6.3.1.1 Density of Materials Free
• 6.3.1.2 Changes of State Pro

6.3.2 Internal Energy and Energy Transfers

• 6.3.2.1 Internal Energy Pro
• 6.3.2.2 Specific Heat Capacity Pro
• 6.3.2.3 Specific Latent Heat Pro

6.3.3 Particle Model and Gas Pressure

• 6.3.3.1 Particle Motion in Gases Pro

6.4.1 Atoms and Isotopes

• 6.4.1.1 Structure of an Atom Free
• 6.4.1.2 Atomic Number, Mass Number and Isotopes Pro
• 6.4.1.3 Development of the Atomic Model Pro

6.4.2 Atoms and Nuclear Radiation

• 6.4.2.1 Radioactive Decay and Radiation Types Pro
• 6.4.2.2 Nuclear Equations Pro
• 6.4.2.3 Half-Lives and Radioactive Decay Pro
• 6.4.2.4 Radioactive Contamination and Irradiation Pro

6.5.1 Forces and Interactions

• 6.5.1.1 Scalar and Vector Quantities Free
• 6.5.1.2 Contact and Non-Contact Forces Pro
• 6.5.1.3 Gravity Pro
• 6.5.1.4 Resultant Forces Pro

• 6.5.2 Work Done Equations Pro

• 6.5.3 Elasticity and Spring Extension 2 notes
  • Deformation and the Force–Extension Investigation Pro
  • Work Done and Elastic Potential Energy Pro

6.5.4 Forces and Motion

• 6.5.4.1.1 Distance and Displacement Pro
• 6.5.4.1.2 Speed Pro
• 6.5.4.1.3 Velocity Pro
• 6.5.4.1.4 Distance-Time Relationship Pro
• 6.5.4.1.5 Acceleration 3 notes
  • Calculating acceleration Pro
  • Velocity-time graphs Pro
  • Free fall and terminal velocity Pro
• 6.5.4.2.1 Newton's First Law Pro
• 6.5.4.2.2 Newton's Second Law 2 notes
  • Newton’s Second Law: Relationships and Calculations Pro
  • Required Practical 19: Investigating Force, Mass and Acceleration Pro
• 6.5.4.2.3 Newton's Third Law Pro
• 6.5.4.3.1 Stopping Distance Pro
• 6.5.4.3.2 Reaction Time Pro
• 6.5.4.3.3 Road and Vehicle Conditions Pro
• 6.5.4.3.4 Braking Forces and Deceleration Pro

6.5.5 Momentum (HT Only)

• 6.5.5.1 Momentum Property Pro
• 6.5.5.2 Conservation of Momentum Pro

6.6.1 Waves in Air, Fluids and Solids

• 6.6.1.1 Transverse and Longitudinal Waves Free
• 6.6.1.2 Properties of Waves 2 notes
  • Wave Properties and Calculations Pro
  • Measuring Wave Properties Pro

6.6.2 Electromagnetic Waves

• 6.6.2.1 Electromagnetic Wave Spectrum Pro
• 6.6.2.2 Refraction and Wave Properties 2 notes
  • Electromagnetic Wave Properties and Refraction Pro
  • Infrared Absorption and Radiation: Required Practical Pro
• 6.6.2.3 Radiation Origins and Hazards 2 notes
  • Generation and Absorption of Electromagnetic Waves Pro
  • Radiation Hazards, Dose and Risk Pro
• 6.6.2.4 Applications of Electromagnetic Waves Pro

6.7.1 Magnetism and Magnetic Fields

• 6.7.1.1 Magnetic Poles Free
• 6.7.1.2 Magnetic Fields Pro

6.7.2 The Motor Effect

• 6.7.2.1 Electromagnetism Pro
• 6.7.2.2 Fleming's Left-Hand Rule (HT Only) Pro
• 6.7.2.3 Electric Motors (HT Only) Pro