Combustion & flame

Substance burns readily

• Combustible Substance

• Non- combustible substance

Device used to extinguish fire

• Compressor

• Fire extinguisher

Combustion is _________reaction

• Reduction

• Physical

• Oxidation

Supporter of combustion

• oxygen

• Carbon dioxide

• Nitrogen

Example of combustible substance

• Glass

• Iron

• Petrol

Combustion of substance on its own without being ignited__________________

• Rapid combustion

• Spontaneous combustion

• Slow combustion

Examples for slow combustion

• Rusting of iron

• Forest fire

• Respiration

_____________cannot be used in case of electrical fires

• Sand

• Water

• Fire extinguisher

_____________________is Hottest part of the flame

• Middle luminous zone

• Outermost non- luminous zone

• Dark inner zone

Example of inflammable substance

• wood

• stone

• LPG