1.2 Understand how the interconversions of solid, liquids and gases are acheived and recall the names used for these three interconversions

Solid to liquid = Melting
Liquid to gas = Evapouration
Gas to Liquid = Condensation
Liquid to Solid = Solidification (sometimes Freezing)
Solid to Gas or Gas to Solid = Sublimation (e.g. Carbon Dioxide)