The matter is made up of very tiny particles and these particles are so small that we cannot see them with naked eyes.
There are three States of Matter:
The three states of matter are as follows:
Solid State:
- The solid-state is one of the fundamental states of matter.
 - Solids differ from liquids and gases by the characteristic of rigidity.
 - The molecules of solids are tightly packed because of strong intermolecular forces; they only oscillate about their mean positions.
 
Liquid State:
- The molecules in a liquid are closely packed due to weak intermolecular forces.
 - These forces are weaker than solids but stronger than that of gases.
 - There is much space in between the molecules of liquids which makes their flowing ability easy.
 
Gaseous State:
- In this state of matter, distances between the molecules are large (intermolecular distance is in the range of 10-7-10-5 cm.
 - The intermolecular forces experienced between them are negligible.
 - Thus, translatory, rotatory and vibratory motions are observed prominently in gases.