👉 Fluid, or liquid, is a state of matter that occupies space and has volume but no fixed shape. Unlike gases, which conform to the shape of their container, fluids maintain a constant volume but can flow and take the shape of any container they are placed in. This unique property arises from the cohesive forces between fluid molecules, which are relatively weak compared to the forces holding particles in solids and gases together. Liquids like water, oil, and mercury exhibit this behavior, allowing them to flow and fill any container while retaining their characteristic volume.
