Water

"Water! Water! Is there water?"

- Finn

Water was a liquid necessary for most life forms, whether animal or vegetal, sentient or non-sentient. Many planets such as Kamino, Mon Cala, and Quila were covered in oceans of water and many species, including the Mon Calamari, Quarren and Gungans, evolved on, under, and around water. On arid worlds like Tatooine, moisture farmers used vaporators to collect water from the atmosphere. The Tusken Raiders of Tatooine believed that all water was sacred and promised to them, resulting in them raiding local moisture farms set up by colonists. On Jakku, another desert world, water was a precious commodity and was sold by the junk dealer Unkar Plutt, along with dehydrated rations which could be activated by it. Frozen water was known as ice.

Non-canon appearances

 * Revenge of the Sith: Episode III (LEGO Star Wars)
 * Star Wars Epic Yarns: The Empire Strikes Back
 * Star Wars Epic Yarns: The Empire Strikes Back