Phase (matter)
= Phase (matter)
{wiki=Phase_(matter)}
In the context of matter, "phase" refers to a distinct form or state that a substance can take, characterized by its physical properties and the arrangement and behavior of its particles. The most commonly recognized phases of matter are: 1. **Solid**: In solids, particles are closely packed together in a fixed arrangement, which gives solids a definite shape and volume. The particles vibrate in place but do not move freely.