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Title: Changes in Physical State
Caption: As temperature increases, a solid melts to become a liquid and then vaporizes to a gas. As temperature decreases, the process reverses.
Notes: Understanding the nomenclature (freezing vs. melting, vaporizing vs. condensing) will help the students predict the direction of temperature change.
Keywords: temperature,state-change,state-of-matter,freezing,melting,vaporizing,condensing,sublimation,deposition