text{volume}}\), the liquid will have slightly lower density. The density of solid iron = 7.8 g/cm 3 The density of liquid iron = 6.9 g/cm 3 A substance evaporates when it changes from the liquid ...

Evaporation happens when water molecules move fast enough to break away from a solution and move into the air. When a solution evaporates, the water goes into the air but the solid is left behind.