Matter exists in various states, each characterized by distinct properties regarding shape and volume. Solids and liquids are notable for possessing a fixed volume, meaning they occupy a specific amount of space that remains relatively constant under typical conditions. For example, a block of ice maintains its volume unless subjected to phase transition, and a measured quantity of water will retain its volume regardless of the container it occupies, within reasonable limits.
The constancy of volume in these states is crucial in numerous scientific and engineering applications. Accurate measurements of liquids are fundamental to chemical reactions and pharmaceutical formulations. The predictable volume of solids is essential for structural integrity in construction and manufacturing. Historically, the understanding and application of these properties have driven advancements in fields ranging from medicine to civil engineering.