Comprehensive revision overview for AQA GCSE Chemistry on Rates of Reaction. Covers collision theory, activation energy, factors affecting rate (temperature, concentration, surface area, pressure, catalysts), measuring reaction rates (gas syringe, mass loss, precipitate formation), interpreting rate graphs, calculating rate from tangents, reversible reactions, and dynamic equilibrium. Includes worked examples, exam tips, and real-world applications (Haber process, enzymes). Perfect for GCSE revision, independent study, or classroom teaching.