GCSE / IGCSE Combined Science Including Exams

Establish the foundations for your entire course. This opening unit explains the structure of the AQA Combined Science: Trilogy specification, the difference between GCSE and IGCSE routes, and what to expect from the six written examinations. You'll learn how to navigate the online learning platform, use the virtual lab tools, access specification documents, and build a realistic study timetable. Guidance is provided on the required practical activities that underpin examiner questions, ensuring you understand how laboratory skills are assessed without setting foot in a physical lab.

Develop a clear understanding of how AQA examines the Combined Science: Trilogy award. The unit maps every assessment objective across the six papers, explains command words used in exam questions, and introduces the required practical activities embedded throughout the specification. You'll study AQA mark schemes and examiner reports to understand what distinguishes a grade 5 answer from a grade 7, and begin practising the six-mark extended-writing questions that appear across all three science disciplines.

Explore the fundamental unit of life. Starting with cell structure – comparing prokaryotic and eukaryotic cells – you'll examine the organelles visible under light and electron microscopes, the processes of cell division (mitosis and meiosis), and how cells differentiate into specialised tissues. The second half of the unit scales up to tissues, organs, and organ systems, with detailed study of the human digestive system, the circulatory system, and the organisation of plant tissues including xylem and phloem.

Study how the body defends itself against pathogens and how organisms produce and transfer energy. The infection and response section covers communicable diseases caused by bacteria, viruses, fungi, and protists; the non-specific and specific immune responses; vaccines and the history of immunisation; and the development of antibiotics and other medicines. Bioenergetics then examines aerobic and anaerobic respiration, the role of ATP, and both the light-dependent and light-independent stages of photosynthesis, with emphasis on limiting factors and commercial applications.

Complete the Biology component by mastering three of the highest-tariff topic areas in AQA Combined Science. Homeostasis covers the endocrine system, blood glucose regulation (including diabetes), thermoregulation, and the control of water balance by the kidneys. Inheritance examines DNA structure, protein synthesis, Mendelian genetics, and the applications of genetic technology. Variation and evolution integrates natural selection with the fossil record and selective breeding. The ecology section covers ecosystems, food webs, the carbon and nitrogen cycles, and the human impact on biodiversity.

Build your chemical foundation from the atomic level upwards. You'll map the development of atomic models from Dalton to the modern nuclear model, master the periodic table – including group trends and periods – and study ionic, covalent, and metallic bonding alongside the properties they confer. Quantitative chemistry introduces relative atomic mass, the mole concept, empirical and molecular formulae, and calculation of percentage yield and atom economy – skills that recur throughout the higher-mark calculation questions across all three chemistry papers.

Investigate the dynamics of chemical reactions and the energy changes that accompany them. Chemical changes covers reactivity series, displacement reactions, extraction of metals, electrolysis, acids and alkalis, pH, neutralisation, and the preparation of salts. Energy changes examines exothermic and endothermic reactions, bond energies, and reaction profiles. The unit concludes with rates of reaction – collision theory, concentration, temperature, catalysts, and surface area – as well as reversible reactions and the concept of dynamic equilibrium.

Complete the Chemistry section with three topic areas that draw on everything you have already studied. Organic chemistry covers alkanes, alkenes, addition and condensation polymers, alcohols, and carboxylic acids, with an introduction to crude oil fractionation and cracking. Chemical analysis examines formulations, chromatography, tests for ions, and instrumental methods of analysis. The final topic – chemistry of the atmosphere – explores the history of Earth's atmosphere, the greenhouse effect, the causes and effects of climate change, and the chemistry of pollutants such as carbon monoxide and sulfur dioxide.

Establish the core mechanical and energy principles that thread through every physics paper. Forces covers scalar and vector quantities, resultant forces, free body diagrams, Newton's three laws of motion, momentum, stopping distances, and pressure in fluids. Motion introduces speed–time and distance–time graphs, acceleration, and uniform and non-uniform motion. Energy examines kinetic, gravitational potential, elastic potential, and thermal energy stores; the law of conservation of energy; efficiency; and the national and global picture of energy resources and power generation.

Study the physics of information transfer and electrical systems. Waves covers transverse and longitudinal waves, the electromagnetic spectrum and its applications, reflection, refraction, and sound. Electricity examines circuit symbols, series and parallel circuits, current, potential difference and resistance (Ohm's law), electrical power and energy, the National Grid, and domestic electrical safety. Magnetism and electromagnetism introduces permanent and induced magnetism, the motor effect, electromagnetic induction, transformers, and the principles underlying electric motors and generators.

Complete the Physics component with the topics that most often feature in extended-response questions. Particle physics covers the structure of the atom, isotopes, the development of the nuclear model, and nuclear equations for fission and fusion. Radioactivity examines the three types of ionising radiation, half-life, the uses of radiation in medicine and industry, and radiation safety. The space physics section explores the life cycle of stars, the structure of the solar system and the universe, the Big Bang theory, and the evidence from red-shift and cosmic microwave background radiation that supports our current cosmological model.

Consolidate your subject knowledge and convert it into examination performance. This dedicated preparation unit provides a bank of AQA past papers and mark schemes across all six examinations (Biology Papers 1 and 2, Chemistry Papers 1 and 2, Physics Papers 1 and 2). Your tutor will mark timed practice papers, provide personalised feedback, and identify the topic areas requiring focused revision. The unit also covers the complete process for your exam booking: confirmation of your approved exam centre, submission of your candidate registration details to AQA, and a step-by-step guide to exam day logistics so you arrive confident and fully prepared.