17.3 The Phase of Matter Can Change

Phase Changes: A Submicroscopic View

The different phases of matter are discussed from the perspective of submicroscopic particles, which are shown through a series of animations, as well as by some hand-waving. Duration: 3:59

Organizing Phase Change Terms

There are numerous terms used to describe the transformation of a material from one phase to another. These terms may be conveniently organized around a graphic the shape of a triangle. Duration: 5:18.

Phase Change Demonstrations

Several activities that demonstrate the change of phase are presented. Duration: 9:19.

KM: Odors

Kai and Maile take a study break to discuss how it is that we only smell materials whose molecules are able to vaporize and make it up to our noses. Duration: 2:08.