Year 11 Chemistry – Combustion & The Fire Triangle

Teach combustion and the fire triangle with this complete lesson pack for Year 11 WJEC GCSE Double Award Science. Students will learn the differences between complete and incomplete combustion, explore the dangers of carbon monoxide and particulates, and understand how fires can be extinguished by removing one part of the fire triangle.

This resource supports the WJEC specification and includes teacher-led explanations, close reading comprehension, practice questions, and exam-style application.

Lesson Content Covers:

Complete vs incomplete combustion of hydrocarbons.

Products of combustion and their environmental impact.

The fire triangle (fuel, oxygen, heat) and methods of extinguishing fires.

Exam practice with a WJEC-style past paper question.

What’s Included:

PowerPoint presentation (.pptx) – objectives, starter activity, worked examples, practice questions, past paper exam question, and plenary quiz.

Worksheet Pack (PDF + answer key) – includes:

Comprehension passage with questions.

Fire triangle labelling activity.

Match-up activity (firefighting method → triangle factor removed).

Combustion equation practice (methane, ethane, propane).

Extension questions with answers.

Equation practice.

The pack is scaffolded for accessibility with literacy support (cloze and comprehension), while providing plenty of exam practice for higher-attaining students.