State of matter
= State of matter
{wiki=State_of_matter}
The term "state of matter" refers to the distinct forms that different phases of matter take on. Traditionally, matter is classified into four primary states, which are: 1. **Solid**: In this state, particles are closely packed together and vibrate in place. Solids have a definite shape and volume. The strong intermolecular forces between the particles keep them in fixed positions.