Combustion and Flame Class 8 Notes

CBSE Class 8 Chapter 6 notes – Combustion and Flames

Combustion is a chemical process in which a substance reacts with oxygen and liberates heat. Substances that undergo combustion are said to be combustible. Sometimes, during combustion light is given off as flames or a glow. Oxygen in the air is essential for combustion. The lowest temperature at which a combustible substance catches fire is known as the ignition temperature. The substances with low ignition temperature and can easily catch fire are known as inflammable substances. Alcohol, petrol and diesel are a few examples of inflammable substances. While extinguishing a hazardous fire, water is poured on the fire because water cools the temperature of combustible material below ignition temperature. Although, we cannot control a fire involving electrical equipment and gas. Please refer Combustion and Flame Class 8 Notes for more revision notes.