Solid Liquid Gas; Meaning: Solid refers to a form of matter which has structural rigidity and has a firm shape which cannot be changed easily. Liquid is a substance, that flows freely, having a definite volume but no permanent shape. read more
Solid is one of the four main states of matter (solid, gas, liquid, and plasma) that is characterized by structural rigidity (a property of a structure that does not bend but may break) and resistance to changes of shape or volume. read more