Water droplets are small, spherical beads of liquid water that form when water vapor condenses. They can be seen in various situations, such as on a cold glass of water or during a light rain. The surface tension of water causes these droplets to maintain a round shape, as the molecules are attracted to each other. In nature, water droplets play a crucial role in the water cycle, which includes processes like evaporation and precipitation. They can also be found on surfaces like leaves, where they contribute to the process of photosynthesis by providing moisture to plants.