Classify matter according to physical state.

(N/A) The matter can exist in three physical states:
$(i)$ Solid
$(ii)$ Liquid
$(iii)$ Gas
The constituent particles of matter in these three states can be represented as shown in the figure.
In solids,these particles are held very close to each other in an orderly fashion and there is not much freedom of movement.
In liquids,the particles are close to each other but they can move around.
However,in gases,the particles are far apart as compared to those present in solid or liquid states and their movement is easy and fast.