👉 A involving fluid, often referred to as a liquid, is a substance that takes the shape of its container while maintaining a constant volume. Unlike gases, which expand to fill any space, fluids resist expansion and tend to return to their original form when confined. This behavior is due to the intermolecular forces between fluid particles, which keep them close together and prevent the fluid from spreading out. Involving fluids include water, oil, and blood, each with unique properties that make them essential for life and various industrial processes.
