| − | '''Solid''' is the [[state of matter]], followed by [[gas]] and [[liquid]] in order of increasing [[elasticity]], in which the overall [[kinetic energy]] of the consituent [[atom|atoms]] is such that a certain degree of elasticity is present. | + | '''Solid''' is the state of [[matter]] in which the consituent [[molecule]]s are constrained in their relative location to each other, and take up a fixed volume. |