The term used for the practice of growing plants in water is "hydroponics." This method allows plants to grow without soil by delivering essential nutrients directly through the water. Hydroponics can be performed in various systems, such as nutrient film techniques, deep water culture, and aeroponics. It offers several advantages over traditional soil gardening, including faster growth rates, the ability to cultivate in limited spaces, and reduced water usage. Hydroponics is increasingly popular in urban agriculture and sustainable farming practices, enabling year-round crop production and contributing to food security in densely populated areas.