#2.1
Describe the arrangement, movement and the relative energy of particles in each of the three states of matter: solid, liquid and gas
#2.2
Recall the names used for the interconversions between the three states of matter, recognising that these are physical changes: contrasted with chemical reactions that result in chemical changes
#2.3
Explain the changes in arrangement, movement and energy of particles during these interconversions
#2.4
Predict the physical state of a substance under specified conditions, given suitable data