Q4 of 22 Page 6

Why we wrapped a blanket around a person who caught fire?

We wrapped a blanket around a person who caught fire, because the fire stops getting the oxygen in required amount for combustion and it extinguishes.

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2 Define combustible substance. 3 With the help of given table, mark the combustible and non-combustible substances of your daily life

MaterialCombustible / non-combustible
Wood
Paper
Iron nails
Kerosene oil
Stone piece
Straw
Charcoal
Match sticks
glass
 5 What is meant by ignition temperature? 6 With the help of an experiment, show that oxygen (air) is necessary for the burning of a candle.