CBSE Class 8 Science – Combustion and Flame

Chapter Overview

This chapter explains the process of combustion, where a fuel reacts with oxygen to produce heat and light, forming a flame. It covers the principles of complete and incomplete combustion, the structure of a flame, and the factors affecting the combustion process, along with its practical applications and safety considerations.

Important Keywords

• Combustion: A chemical reaction between a fuel and oxygen that produces heat and light.
• Flame: The visible, gaseous part of a fire.
• Fuel: Any material that can combust.
• Oxygen: The gas that supports combustion.
• Exothermic Reaction: A reaction that releases heat.
• Ignition Temperature: The minimum temperature required to start combustion.
• Complete Combustion: Combustion with sufficient oxygen producing carbon dioxide and water.
• Incomplete Combustion: Combustion with limited oxygen producing carbon monoxide and soot.