30. Higher order thinking skills III

 

The movement of its particles decreasesions decreasesatoms increasesparticles increases.
Bonds between particles break when a substance melts evaporatesions melts evaporatesatoms melts evaporatesparticles melts evaporates. This causes the volume of matter to increase.
The closeness, arrangement and motion of the molecules in a substance changeions in a substance changeatoms in a substance changeparticles in a substance change when it changes state. But the particles' size remains in the various sizeparticles' size remains in the same sizeions' size remains in the same sizeatoms' size remains in the same size (i.e.), the mass of matter does not change.