👉 The term "fluid" can refer to various substances in different contexts, but generally, it describes a substance that takes the shape of its container and has no fixed shape or volume. Liquids, a common example of fluids, consist of molecules that are close together but can move past each other, allowing them to flow and change shape. This mobility of molecules is what gives liquids their fluid nature, distinguishing them from solids, which have a fixed shape and volume, and gases, which expand to fill any container they occupy. Examples of fluids include water, oil, and blood, each with unique properties that influence their behavior and interactions.
