How do We Control Fire?
Controlling fire involves various techniques and strategies depending on the situation and the type of fire. Here are some common methods used to control fires:
- Fire Extinguishers: Portable fire extinguishers are effective for quickly controlling small fires. They contain substances such as water, foam, carbon dioxide, or dry chemical powder that can smother the flames or interrupt the chemical reaction of combustion.
- Water Supply: Water is one of the most common firefighting agents. Fire hoses connected to water supplies deliver water to the fire, cooling the burning materials and extinguishing the flames.
- Fire Blankets: Fire blankets are made of fire-resistant materials and can be used to smother small fires by covering them completely, cutting off the oxygen supply and extinguishing the flames.
- Fire Sprinkler Systems: Fire sprinkler systems are installed in buildings and automatically release water when they detect heat from a fire. They help control fires by suppressing or extinguishing flames before they spread.
- Firebreaks: Firebreaks are barriers created by removing vegetation or other flammable materials to prevent the spread of fires in wildland areas. They can be used to control the direction and intensity of wildfires.
- Backburning: In wildfire management, backburning involves intentionally setting fires along the perimeter of a wildfire to create a buffer zone. This controlled burn removes fuel and prevents the fire from spreading further.
- Fire Retardants: Fire retardants are chemicals applied to materials or surfaces to reduce their flammability and slow down the spread of fire. They are commonly used in building materials, textiles, and vegetation management.
- Firefighting Foam: Foam concentrates mixed with water create a foam blanket that can smother flammable liquids or suppress vapors, preventing fires or explosions in industrial settings.
What is Combustion? and Types of Combustion – NCERT Class-8 Notes
Combustion is a chemical process that involves the rapid reaction of a substance with oxygen, releasing heat and light. The substance that reacts is called the fuel, and the source of oxygen is called the oxidizer. The fuel can be a solid, liquid, or gas, but it is usually a liquid or gas. The oxidizer is usually atmospheric oxygen, but it can also be other substances, such as hydrogen peroxide or chlorine.
In this article, we will look into the meaning of combustion, how we control fire, and types of combustion in detail. These are important concepts of NCERT Class 8 Science. Students can go through this article to get comprehensive notes on combustion and its types, and how we control fire.
Table of Content
- What is Combustion?
- Experiments to Understand Combustion
- Applications of Combustion
- What is Fire?
- How do We Control Fire?
- Types of Combustion