Diffusing is the process by which particles spread from an area of high concentration to an area of low concentration. This movement occurs naturally and continues until the particles are evenly distributed. For example, when a drop of food coloring is added to water, the color gradually spreads throughout the liquid, demonstrating diffusion. In everyday life, diffusion can be observed in various situations, such as the scent of perfume filling a room or the way smoke disperses in the air. It plays a crucial role in many biological processes, including how cells take in nutrients and expel waste.