States of Matter: Properties of Solids, Liquids and Gases

A chemistry tutorial video explaining solids, liquids, and gases to school & science students . The video first examines the distinctive volume-changing and shape-changing properties of the three states of matter.
The video then shows that a substance can be changed from one state into another by adding or removing heat, and changing its temperature. The characteristics of melting point and boiling point are shown as well.