Complete Topic 2 c: Gases in the Atmosphere Edexcel IGCSE Chemistry 9–1 Bundle 5 lessons

Bundle of 5 fully planned lessons and resources for Topic 2 c Gases in the Atmosphere 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. Composition of the Atmosphere – main gases and their proportions; experimental methods for measuring oxygen using phosphorus, iron wool or copper.

2. Investigating Percentage of Oxygen (Key Practical) – setting up displacement experiments; calculating oxygen percentage from volume changes; comparing results to expected 21%.

3. Combustion of Elements in Oxygen (Key Practical) – burning magnesium, sulfur and hydrogen; flame colours, oxide types formed; word and balanced symbol equations.

4. Thermal Decomposition of Carbonates (Key Practical) – heating carbonates (e.g., CaCO₃, CuCO₃); colour changes, CO₂ test with limewater; decomposition equations.

5. Carbon Dioxide as a Greenhouse Gas – greenhouse effect, role of CO₂, human impacts (fossil fuels, deforestation), climate-change style questions.

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, blookets 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.