In this program, students will witness how a substance, such as water, can exist in several dramatically different phases. Easy-to-understand examples illustrate how phase changes occur. Additional concepts and terminology: states of matter, particles, solid, liquid, gas, plasma, melting, freezing, vaporization, boiling, evaporation, condensation, and sublimation.

Originally released by Visual Learning, 2009. Streaming video file encoded with permission for digital streaming by Infobase on April 18, 2015. Teacher's guide available under Additiona info tag. Also available as DV3470.

Phases of Matter (2:03); --Moving Particles and Matter (0:52); -- Understanding Phases of Matter (3:07); -- Solid to Liquid Phase Change (1:46); -- Liquid to Gas Phase Change (2:46); -- Solid to Gas Phase Change (0:58); -- Summing Up (1:07); -- Video Assessment (1:45); -- Credits: The Changing Phases of Matter (0:40); -- Molecules (5:29); -- Matter Changes (5:31);.