The third way of putting out a fire is to remove the heat. If the temperature can be brought down below the flash point, the fuel stops burning. You blow on a burning matchstick or a candle to put it out. In doing so, you remove the hot air around the flame bringing down its temperature below the flash point, and the candle goes out. Sometimes, water is sprayed on a fire. It absorbs heat from the burning fuel and lowers the temperature. The blanket of water also cut off the supply of oxygen, and the fire is extinguished.
(i) How can fire be put out?
(ii) When does the fuel stop burning?
(iii) What is the impact of water if sprayed on a fire?
(iv) How can fire is extinguished with water?
(v) Give the meaning of ‘extinguished
Answers
Answer:
(i) putting out a fire is to remove the heat.
(ii) If the temperature can be brought down below the flash point, the fuel stops burning.
(iii) Sometimes, water is sprayed on a fire. It absorbs heat from the burning fuel and lowers the temperature.
(iv) The blanket of water also cut off the supply of oxygen, and the fire is extinguished.
(v) to put out
The third way of putting out a fire is to remove the heat. If the temperature can be brought down below the flash point, the fuel stops burning. You blow on a burning matchstick or a candle to put it out. In doing so, you remove the hot air around the flame bringing down its temperature below the flash point, and the candle goes out. Sometimes, water is sprayed on a fire. It absorbs heat from the burning fuel and lowers the temperature. The blanket of water also cut off the supply of oxygen, and the fire is extinguished.
(i) How can fire be put out?
(ii) When does the fuel stop burning?
(iii) What is the impact of water if sprayed on a fire?
(iv) How can fire is extinguished with water?
(v) Give the meaning of ‘extinguished
