

Oxidation & Reduction – Lesson & Worksheet
Edexcel IGCSE Chemistry | Unit 2.20 | Lesson 27
OverviewThis lesson introduces key redox concepts, including oxidation, reduction, oxidising and reducing agents, and the electron transfer model. Students are guided through definitions, worked examples, displacement reactions, and redox equations, with scaffolded tasks and opportunities for practice.
Specification Covered- 2.20: Understand the terms oxidation, reduction, redox, oxidising agent, and reducing agent in terms of the gain or loss of oxygen and the loss or gain of electrons
- Editable PowerPoint Lesson (Theory + Tasks)
- Student Worksheet
- Structured examples using oxygen and electron definitions
- Displacement and blast furnace applications
- Fully aligned with Edexcel IGCSE Chemistry Unit 2
- Side-by-side explanation of oxygen-based and electron-based definitions
- Step-by-step redox breakdown of metal displacement reactions
- Visual examples and scaffolded questions for confidence with equations
- Clean Synapse Science layout for consistent classroom delivery
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