Liquid: Molecules that move freely but don't separate from each other.

 

 

 

 

 

Solid: A thing with three dimensions, geometrical body or figure.

 

 

 

 

 

Gas: a substance possessing perfect molecular mobility and the property of indefinite expansion.

 

 

 

 

 

Plasma: It is a collection of charged particles that respond strongly and collectively to electromagnetic fields.