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AQA GCSE
AQA GCSEAQA GCSE Combined Science Higher Cheat Sheet 2026
ExpertMinds Editorial·24 March 2026·10 min read
Practice AQA GCSE questions while you read →Higher tier covers grades 4–9. The same six papers, but with questions that require more mathematical skill, more complex explanations, and the ability to apply knowledge in unfamiliar contexts. This sheet covers Higher-only content — review the Foundation sheet for the baseline.
Key fact:Higher-only topics are marked with an asterisk (*) in the AQA specification. If you are not sure whether a topic is Higher-only, check the spec directly. Common Higher-only additions: genetic crosses for sex-linked traits, le Chatelier's principle, nuclear equations, specific latent heat.
Biology — Higher-Only Topics
| Topic | Higher-only content |
|---|---|
| Cell biology | Mitosis stages (PMAT); meiosis (produces gametes with half chromosome number); cell cycle |
| Bioenergetics | Limiting factors for photosynthesis — graphs showing interaction of light, CO₂, temperature; inverse square law for light intensity |
| Homeostasis | Negative feedback mechanism in detail; ADH and water reabsorption in kidneys; dialysis (how it works) |
| Inheritance | Codominance (e.g. blood groups ABO); sex-linked inheritance (e.g. colour blindness — X-linked recessive); genetic disorders (Huntington's — dominant; cystic fibrosis — recessive) |
| Ecology | Cycling of carbon and water in detail; eutrophication mechanism; deforestation impacts on carbon cycle |
Chemistry — Higher-Only Topics
| Topic | Higher-only content |
|---|---|
| Atomic structure | Electronic configuration notation; mass spectrometry (how relative atomic mass is calculated from isotope abundances) |
| Bonding | Giant covalent structures (diamond — strong/hard, graphite — conducts, graphene); metallic bonding explanation; intermolecular forces (why simple molecular compounds have low boiling points) |
| Quantitative | Percentage yield; atom economy; concentration in mol/dm³; moles from equations; Avogadro's number |
| Equilibrium | Le Chatelier's principle — effect of temperature, pressure, concentration on position of equilibrium |
| Organic chemistry | Addition and condensation polymers; nylon, polyester; addition reactions of alkenes; alcohols and carboxylic acids |
| Chemical analysis | Flame emission spectroscopy; identifying unknown ions (precipitate tests with NaOH and BaCl₂) |
Practice AQA GCSE questions while you read
Questions graded, hints, and explained.
Physics — Higher-Only Topics and Equations
| Topic / Equation | Higher-only content |
|---|---|
| Momentum and force | F = Δp/Δt (force = rate of change of momentum); safety features (airbags increase time → reduce force) |
| Nuclear physics | Nuclear equations: alpha (²₄He), beta (⁻₁⁰e), gamma (high-energy photon); half-life calculations; nuclear fission chain reactions; E=mc² (concept only) |
| Electricity | Diode characteristics; LED; LDR; thermistor behaviour; calculating total resistance in series/parallel circuits |
| Specific latent heat | E = mL (L = specific latent heat); fusion vs vaporisation; why temperature stays constant during change of state |
| Pressure and forces | Turning moments: moment = force × perpendicular distance; hydraulic systems: pressure = force/area; P = hρg |
| Space physics | Life cycle of stars; red-shift and Big Bang evidence; cosmic microwave background radiation |
Practice Combined Science Higher questions
Higher questions often require multi-step calculations and extended written answers. Practice showing all working clearly — method marks are awarded even with a wrong final answer.
Six-Mark Question Strategy
Tip:6-mark questions in science require a structured, detailed answer covering all aspects of the question. Use the indicative content in mark schemes to guide what to include. Structure: introduce the concept → apply it step by step → conclude with the outcome or significance. Bullet points are acceptable if they form a coherent sequence.
- Biology 6-markers often ask you to explain a process (e.g. immune response, osmoregulation) — include all stages in order
- Chemistry 6-markers often ask you to plan an experiment or explain observations — include apparatus, method, variables, expected results
- Physics 6-markers often ask you to analyse data or explain a phenomenon — include relevant equations, numerical reasoning, and a conclusion
- Always write in full sentences for 6-mark questions — they are prose answers, not bullet-point lists
- Check for every part of the question — a question asking for "describe and explain" requires both description and explanation; missing one halves your potential marks
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