American Chemical Society
Middle School Chemistry: Changing State: Evaporation
Learn how substances change from a liquid to a gaseous state in the process of evaporation.
CK-12 Foundation
Ck 12: Physical Science: Boiling
A module reviewing over how vaporization occurs and its difference from evaporation. Also, review over the definition of boiling point. Module includes a video, pictures, explanation, and review questions.