Spec 1PH0
Revise Edexcel GCSE Physics 14.1.3 Density and changes of state with the question bank and revision guides.
Explain the differences in density between the different states of matter in terms of the arrangements of the atoms or molecules. • Describe that when substances melt, freeze, evaporate, boil, condense or sublimate mass is conserved and that these physical changes differ from some chemical changes because the material recovers its original properties if the change is reversed.
