Question

Important topics of class - 9 chapter matter. .....

Answer 1

Heya mates. .........

your answer

Answer 2

Topics of chapter Matter

■ Fundamental unit of matter.

■ Characteristics of matter.

■ States of Matter

You have to study mainly about 3 states :-

▪ Solid

▪ Liquid

▪ Gas

Two more States are there :-

▪ Plasma

▪ Bose-Einstein condensate (BEC)

■ Change in states of matter

▪ Melting point

▪ Boiling point

▪ Sublimation

■ Liquification of gas

■ Evaporation

■ Cooling effect of Evaporation

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