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AQA Combined:Triology & Separate Science Topics

Topics in AQA GCSE Science (Combined:Trilogy & Separates)

Topics that are only covered by Separate science classes are indicated with: (Separates Only)

4.1 Cell Biology  4.1 Atomic structure and the periodic table 4.1 Energy
Animal cells  Atoms, elements and compounds Energy stores and systems 
Plant cells   Mixtures  Changes in energy
Required Practical - Using a light microscope Scientific models of the atom Energy changes in systems 
Eukaryotes and prokaryotes  Relative electrical charges of subatomic particles  Required practical - Thermal insulation (Separates Only)
Cell differentiation and specialization size and mass of atoms  Work 
Microscopy Electronic structure  Power 
Culturing microorganisms (Separates Only) Relative atomic mass  Energy transfers in a system 
Required practical - Effect of antibiotics on bacterial growth (Separates Only) The periodic table Efficiency
Chromosomes  Development of the periodic table  National and global energy resources 
Mitosis and the cell cycle  Metals and non metals  4.2 Electricity 
Stem cells  Group 0 Standard circuit diagram symbols 
Diffusion Group 1 Electrical charge and current 
Osmosis  Group 7 Current, resistance and potential difference 
Required practical - Osmosis Comparison with Group 1 elements and transition metals (Separates Only) Resistors 
Active transport  Typical properties of transition metals (Separates Only) Required practical - Resistance 
4.2 Organization 4.2 Bonding structure, and the properties of matter  Required practical - V-I characteristics 
Organizational hierarchy  Chemical bonds Series and parallel circuits 
Enzymes  Ionic bonding Direct and alternating potential difference 
Required practical - Food tests Ionic compounds  Mains electricity 
Required practical - Enzymes  Covalent bonding  Energy transfers in every day appliances 
The human digestive system Metallic bonding  The national grid
The heart and blood vessels  The three states of matter  Energy changes in systems 
Blood State symbols  Static charge (Separates Only)
Coronary heart disease  Properties of ionic compounds  Electric fields (Separates Only)
Health issues  Properties of small molecules  4.3 Particle model of matter 
The effect of lifestyle on some non-communicable diseases Polymers  Density of materials 
Cancer  Giant covalent structures  Required practical - Density
Plant tissues  Properties of metals and alloys  Changes of state 
Plant organ system Metals as conductors  Internal energy
4.3 Infection and response  Diamond  Temperature changes in a system and specific heat capacity 
Communicable infectious disease  Graphite Required practical - Specific heat capacity
Plant organ system Graphene and fullerenes  Changes of heat and specific latent heat 
Viral diseases  Sizes of particles and their properties (Separates Only) Particle motion in gases 
Bacterial diseases  Uses of nanoparticles (Separates Only) Pressure in gases (Separates Only)
Fungal diseases  4.3 Quantitative chemistry Increasing the pressure of a gas (Separates Only)
Protist diseases  Conservation of mass and balanced chemical equations  4.4. Atomic structure 
Human defense systems  Relative formula mass The structure of an atom 
Vaccination Mass changes when a reactant or product is a gas Mass number, atomic number and isotopes 
Antibiotics and painkillers  chemical measurements  The development of the model of the atom 
Discovery and development of drugs  Moles HT only Radioactive decay and nuclear radiation 
Producing monoclonal antibodies  (Separates Only) Amounts of substances in equations HT only Nuclear equations
Use of monoclonal antibodies  (Separates Only) Using moles to balanced equations HT only Half-lives and the random nature of radioactive decay 
Detection and identification of plant diseases  (Separates Only) Limiting reactants HT only Radioactive contamination 
Plant defense responses  (Separates Only) Concentration of solutions HT only  Background radiation (Separates Only)
4.4 Bioenergics  Percentage yield (Separates Only) Different half-lives of radioactive isotopes (Separates Only)
Photosynthetic reaction  Atom economy (Separates Only) Uses of nuclear radiation (Separates Only)
Rate of photosynthesis  Using concentrations of solutions in mol/dm3 (Separates Only) Nuclear fission (Separates Only)
Required practical - Photosynthesis Use of amount of substance in relation to volumes of gases (Separates Only) Nuclear fusion (Separates Only)
Uses of glucose from photosynthesis  Percentage yield (Separates Only) 4.5 Forces 
Aerobic and anaerobic respiration  4.4 Chemical changes  Scalar and vector quantities 
Response to exercise  Metal oxides Required practical- Force and extension
Metabolism  The reactivity series  Contact and non-contact forces
4.5 Homeostasis and response Extraction of metals and reduction  Gravity 
Importance of homeostasis  Oxidation and reduction in terms of electrons HT only Resultant forces 
Structure and function of the nervous system Reactions of acids with metals  Work done and energy transfer 
Required practical - Reaction time Neutralization of acids and salt production Forces and elasticity 
The brain  (Separates Only) Soluble salts Moments, levers and gears (Separates Only)
The eye  (Separates Only) Required practical - Making salts Pressure in a fluid
Control of body temperature  (Separates Only) The pH scale and neutralization Pressure in  a fluid 1
Human endocrine system  Titrations Pressure in a fluid 2 HT only 
Control of blood glucose concentration  Required practical - Neutralization (Separates Only) Atmospheric pressure 
Maintaining water and nitrogen balance in the body  (Separates Only) Strong and weal acids HT only  Describing motion along a line
Hormones in human reproduction  The process of electrolysis  Distance and displacement 
Contraception Electrolysis of molten ionic compounds  Speed
The use of hormones to treat infertility HT only Using electrolysis to extract metals  Velocity 
Negative feedback HT only Electrolysis of aqueous solutions  The distance-time relationship
Plant hormones- control and coordination  (Separates Only) Required practical - Electrolysis Acceleration
Required practical - Germination (Separates Only) Representation of reactions at electrodes as half equations HT only Required practical - Acceleration
Use of plant hormones  4.5 Energy changes  Forces, accelerations and Newton's Laws of motion
4.6 Inheritance, variation and evolution Energy transfer during exothermic and endothermic reactions  Newton's first law 
Sexual and asexual reproduction  Required practical - Temperature changes  Newton's second law
Meiosis  Reaction profiles  Newton's third law
Advantages and disadvantages of sexual and asexual reproduction   (Separates Only) The energy change reactions HT only Forces and braking
DNA and the genome  Cells and batteries (Separates Only) Stopping distance 
DNA structure  (Separates Only) Fuel cells (Separates Only) Reaction time
Genetic inheritance  4.6 The rate and extent of chemical change  Factors affecting braking distance 1 
Inherited disorders  Calculating rates of reaction Factors affecting braking distance 2
Sex determination  Factors which affect the rate of chemical reactions Momentum is a property of moving objects HT only
Variation Required practical - Rates of reaction Conservation of momentum HT only 
Evolution  Collision theory and activation energy Changes in momentum (Separates Only)
Selective breeding  Catalysts 4.6 Waves 
Genetic engineering  Reversible reactions Transverse and longitudinal waves 
Cloning  (Separates Only) Energy changes and reversible reactions Properties of waves 
Theory of evolution  (Separates Only) Equilibrium  Required practical - Waves 
Speciation  (Separates Only) The effect of changing conditions on equilibrium HT only Reflection of waves (Separates Only)
The understanding of genetics  (Separates Only) The effect of changing concentration HT only Sound waves (Separates Only)
Evidence for evolution  The effect of temperature on equilibrium HT only Waves for detection and exploration (Separates Only)
Fossils The effect of pressure changes on equilibrium HT only  Types of electromagnetic waves 
Extinction  4.7 Organic chemistry  Properties of electromagnetic waves 1
Resistant bacteria  Crude oil, hydrocarbons and alkanes Properties of electromagnetic waves 2
Classification  Fractional distillation and petrochemicals Uses and applications of electromagnetic waves 
4.7 Ecology Properties of hydrocarbons  Lenses (Separates Only)
Communities  Cracking and alkenes  Visible light (Separates Only)
Required practical - Field investigations Structure and formula of alkenes (Separates Only) Required practical - Light (Separates Only)
Abiotic factors  Reactions of alkenes (Separates Only) Emission and absorption of infrared radiation (Separates Only)
Biotic factors Alcohols (Separates Only) Required practical - Radiation and absorption (Separates Only)
Adaptations  Carboxylic acids (Separates Only) Perfect black bodies and radiation (Separates Only)
Levels of organization  additional polymerization (Separates Only) 4.7 Magnetism and electromagnetism 
How materials are cycled  Condensation polymerization (Separates Only) Poles of a magnet
Decomposition  amino acids (Separates Only) Magnetic fields
Required practical - Decay (Separates Only) DNA and other naturally occurring polymers (Separates Only) Poles of a magnet 
Impact of the environmental change  (Separates Only) 4.8 Chemical analysis  Electromagnetism 
Biodiversity  Pure substances Fleming's left-hand rule HT only
Waste management  Formulations Electric motors HT only
Land use  Chromatography  Loudspeakers (Separates Only)
Deforestation  Required practical - Chromatography  Induced potential (Separates Only)
Global warming  Test for hydrogen Uses of the generator effect (Separates Only)
Maintaining biodiversity  Test for oxygen  Microphones (Separates Only)
Trophic levels  (Separates Only) Test for carbon dioxide  Transformers (Separates Only)
Pyramids of biomass  (Separates Only) Test for chlorine  4.8 Space physics 
Transfer of biomass  (Separates Only) Flame tests (Separates Only) Our solar system (Separates Only)
Factors affecting food security  (Separates Only) Metal hydroxides (Separates Only) The life cycle of a star (Separates Only)
Farming techniques  (Separates Only) Carbonates (Separates Only) Orbital motion, natural and artificial satellites (Separates Only)
Sustainable fisheries  (Separates Only) Halides (Separates Only) red shift (Separates Only)
Role of biotechnology  (Separates Only) Sulfates (Separates Only)  
  Instrumental methods (Separates Only)  
  Flame emissions spectroscopy (Separates Only)  
  Required practical - Identifying ions (Separates Only)  
  4.9 Chemistry of the atmosphere   
  The proportions of different gases in the atmosphere   
  The earths early atmosphere   
  How oxygen increased  
  How carbon dioxide decreased   
  Greenhouse gases   
  Human activities which contribute to an increase in greenhouse gases in the atmosphere   
  Global climate change   
  The carbon footprint and its reduction   
  Atmospheric pollutants from fuels   
  Properties and effects of atmospheric pollutants   
  4.10 Using resources   
  Using the Earth's resources and sustainable development   
  Potable water  
  Waste water treatment   
  Required practical - Water purification  
  Alternative methods of extracting metals HT only   
  Life cycle assessment   
  Ways of reducing the use of resources   
  Corrosion and its prevention (Separates Only)  
  Alloys as useful materials (Separates Only)  
  Ceramics, polymers and composites (Separates Only)  
  The Haber process (Separates Only)  
  Production of uses of NPK fertilizers (Separates Only)  
  The Haber process (Separates Only)