Water sources are essential for life and can come in many forms. A RILL is a small STREAM of water, while a STREAM is a larger body of flowing water. A HOSE is a flexible tube used to convey water from one place to another, while a HYDRANT is an upright pipe with a valve that provides access to water from a MAIN source. A TAP is a device that controls the release of a liquid, while a WELL is a deep hole dug into the ground to access underground water. Evian is a brand of bottled mineral water, while SEA, LAKE, and MAIN refer to large bodies of water. A PUMP is a device used to move liquids, while a CREEK is a small STREAM of water. A SPIGOT is a faucet or TAP, while a SPRING is a natural flow of water from the ground. An aquifer is an underground layer of water-bearing permeable rock, and a FOUNTAIN is a structure from which water issues.