A complete, ready-to-teach pack for Cambridge Lower Secondary Science Stage 8 – Unit 8: Chemical Reactions. This resource aligns with the content in the official Book 8 course and covers exothermic and endothermic reactions, metal reactions with oxygen, water, and acids, and introduces the reactivity series through practical work, demos, and student-led investigations. Includes: 8 high-quality PPTs lessons (editable) Starter activities, plenaries, and practical planning Clear focus on scientific enquiry skills and assessment for learning Practical equipment lists and technician notes Lesson Topics: Exothermic Reactions – Definitions & Demos Exothermic Reaction Practical – Mg + HCl Endothermic Reactions – Cold Packs & Dissolving Comparing Exo and Endo – Bond Energy & Particle Models Metals and Oxygen – Combustion & Corrosion, Rusting Practical Metals and Water – Reactivity of Group 1 and Alkaline Earth Metals Metals and Acids – Observing Reactivity, Salt Formation