上浒充通大率 19 SHANGHAI JIAO TONG UNIVERSITY Phases(2) in thermodynamics,chemically and physically uniform or homogeneous quantity of matter that can be separated mechanically from a nonhomogeneous mixture and that may consist of a single substance or of a mixture of substances.The three fundamental phases of matter are solid,liquid,and gas (vapour),but others are considered to exist,including crystalline,glassy,amorphous,and plasma phases. > Salt water; >Pure water with two pieces of ice on the surface; > Gold sands and sands; >alloys 4Phases (2) Ø Salt water; Ø Pure water with two pieces of ice on the surface; Ø Gold sands and sands; Ø alloys 4