👉 A fluid is a substance that takes the shape of its container while maintaining a constant volume. It flows easily and can move from one place to another, unlike solids which have a fixed shape and volume. Liquids, the most common type of fluid, consist of molecules that are close together but can slide past each other, allowing them to flow. This characteristic behavior is due to the weaker intermolecular forces in liquids compared to solids, enabling them to change shape in response to external pressures or forces. Examples of fluids include water, oil, and blood, each with unique properties that influence their behavior in various contexts.
