Q5 of 22 Page 6

What is meant by ignition temperature?

The lowest temperature at which a substance catches fire is called its ignition temperature.

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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
 4 Why we wrapped a blanket around a person who caught fire? 6 With the help of an experiment, show that oxygen (air) is necessary for the burning of a candle. 7 What do you meant by inflammable substances?