👉 An actively fluid is a state of matter that exhibits properties of both liquids and gases, characterized by its ability to flow and change shape while still maintaining a continuous structure. Unlike a rigid solid, an actively fluid can flow easily under the influence of external forces, such as gravity or pressure, and it can take on the shape of its container. Examples include water at room temperature and carbon dioxide gas under low pressure, which can behave like a liquid but also flow like a gas. This dynamic nature makes actively fluids highly adaptable and versatile in various physical and chemical processes.