This program scrutinizes the concept of phase transitions -- from naturally occurring changes in state to those created in laboratories -- in five sections: Solids, Liquids, and Gases (properties of molecules in different states; hydrogen bonds, dipole-dipole forces, dispersion forces; effects of temperature, pressure, and volume on atomic and molecular movement; Ideal Gas Law); Evaporation and Condensation (intermolecular forces, boiling/condensing point, endothermic reactions); Melting and Freezing (melting/freezing point, ionic and covalent bonds, cations and anions); Sublimation and Deposition (triple points and phase diagrams); and Other States of Matter (plasma, liquid crystals, Bose-Einstein condensates, superfluids and supersolids).

Encoded with permission for digital streaming by Infobase on Aug. 19, 2009. Learn360 is distributed by Infobase for Films for the Humanities & Sciences, Cambridge Educational, Meridian Education, and Shopware.

States of Matter: Solid, Liquid, Gas (4:06) -- Evaporation and Condensation (4:40) -- States of Matter: Melting and Freezing (3:59) -- Sublimation and Deposition: Phase Changes (3:11) -- Other States of Matter (4:50).