IMSO 2011 Science International – Theory I Question 12

When a substance changes from one state or phase of matter to another, it is said to have undergone a change in phase. These changes of phase always occur with a change in the amount of heat of the substance. The figure below summarizes the movement of heat during phase change.

Complete the table by giving the letters for (1) melting, (2) sublimation, (3) vaporization, (4) deposition, (5) condensation, (6) freezing.