ClassFlow
Class Flow: Promethean Planet: States of Matter
[Free Registration/Login Required] This collection of resources discusses various states of matter.
Frostburg State University
Frostberg University: Surface Tension in Liquids
Explains the role of surface tension in a liquid and how oil can be used to keep water from boiling over.
Science4Fun
Science4 Fun: States of Matter
Provides interesting information about the three basic states of matter: solid, liquid, and gas.
Fact Monster
Fact Monster: Adhesion and Cohesion
The forces of adhesion and cohesion are compared and contrasted. Various phenomena which can be explained by such forces are identified and discussed.
Other
Warmair.com: Refrigeration Cycle
The expansion-compression-condensation cycle of a refrigerator is discussed and explained. Understandable language but no graphics.
Curated OER
Oceans Are Solutions
This overview of liquids explores what a liquid is and how matter becomes changes into a liquid.