Complete Topic 3b: Rates of Reaction Edexcel IGCSE Chemistry 9–1 Bundle 7 lessons

Bundle of 7 fully planned lessons and resources for Topic 3 b Rates of Reaction Edexcel IGCSE 9–1 Double/Separate Chemistry.

Checklist, key terms, definitions, tech guide, revision PowerPoint, coursebook questions and answers included. Perfect for new and experienced teachers, this resource provides an authentic, ready-to-teach unit requiring no additional preparation. All lessons are contained in one PowerPoint with a consistent, clear structure.

Lessons & Key Content:

1. Particle Theory, Collision Theory & Activation Energy – explaining particle collisions, successful collisions, activation energy and factors affecting rate.

2. Core Practical: Rates by Mass Loss (CaCO₃ + Acid) – setup using balance and cotton wool; interpreting mass-loss curves; explaining curve shapes using collision theory.

3. Effect of Surface Area on Rate (Core Practical) – comparing powdered vs chunk CaCO₃; gas collection or mass-loss data; linking exposed surface to frequency of collisions.

4. Effect of Concentration on Rate (Core Practical) – higher concentration increasing particles per volume; interpreting graphs and explaining trends.

5. Effect of Temperature on Rate (Core Practical) – thiosulfate + HCl disappearing cross; higher temperature increasing kinetic energy and proportion of particles above activation energy.

6. Catalysts & Reaction Profile Diagrams (Separate Chemistry) – catalyst providing alternative pathway with lower activation energy; reaction profiles with and without catalysts; demonstrations such as H₂O₂ + MnO₂.

7. Reversible Reactions – dehydration/rehydration of copper(II) sulfate; ammonium chloride decomposition; introduction to reversible symbols and basic equilibrium ideas.

Each lesson includes starter slides with title, learning goals and tasks, along with key terms, bolded explanations, and content checked against the specification and examination papers. Core practicals or key demonstrations are included where relevant with step-by-step modelling, notes, diagrams and student tasks, booket and quizzes. The PowerPoint features click-in animations, embedded video links, model questions and answers, and coursebook tasks to support strong conceptual understanding. Plenaries link back to learning goals. A technician guide and full lesson list appear on Slide 2 for easy planning.

Notes:
Slide 1 is repeated for TES display purposes.
Lesson starter slide background is black but PowerPoint colour schemes vary throughout.
Separate Chemistry content is clearly marked and distinguished from Double Award content.