Word
state change, n.
a change from one state (solid or liquid or gas) to another without a change in chemical composition
<noun.process>
phase change
phase transition
physical change
state change
semantic pointers
hyponym
freezing, freeze
liquefaction
thaw, thawing, melting, melt
evaporation, vapor, vaporization, vaporisation, vapour
hypernym
action, natural process, natural action, activity