Solid

Solid is a state of matter in which atoms are closely packed and are difficult to move past each other. Solids resist compression, expansion, or external forces that would alter its shape, with the degree of resistance being dependent upon the specific material under consideration. Solids also always possess the least amount of kinetic energy per atom/molecule relative to other phases or, equivalently stated, solids are formed when matter in the liquid / gas phase is cooled below a certain temperature.

Extends: [Phases of matter](https://wikipedia.org.ai/Phases of matter), Solids, [Articles containing video clips](https://wikipedia.org.ai/Articles containing video clips)