Water occurs in nature as ice.
Water strictly refers to the liquid state of that substance , that prevails at standard ambient temperature and pressure ; but it often refers also to its solid state -LRB- ice -RRB- or its gaseous state -LRB- steam or water vapor -RRB- .	liquid	liquid	standard ambient temperature and pressure	standard ambient temperature and pressure	solid	solid	ice	ice	steam	steam	water vapor	water vapor	vapor	vapor
