Still water, also known as flat water, is water without any carbonation or added bubbles. It is the most basic and pure form of water, free from added flavors or additives. Sparkling water, also called carbonated water or soda water, is water that has been infused with carbon dioxide gas under pressure, resulting in effervescence and bubbles. It is a popular alternative to sugary carbonated beverages, offering a refreshing and fizzy drinking experience. Sparkling water can be enjoyed plain or flavored with natural essences for added variety. It provides a thirst-quenching option with a lively mouthfeel and can be consumed on its own or used as a base for mixed drinks and cocktails.