Other
Fact index.com: Thermal Conductivity
Fact-Index.com offers an excellent site on thermal conductivity. Includes table of contents, hyperlinked terms, and formulas.
CK-12 Foundation
Ck 12: Earth Science: Stratosphere
[Free Registration/Login may be required to access all resource tools.] Describes the properties of the stratosphere.
Other
The Geological Society: Plate Tectonics: Mechanical Properties: 'Lithosphere' and 'Asthenosphere'
This resource describes how the mechanical properties of the lithosphere and asthenosphere change as the temperature and pressure increase. This can cause rocks to flow and become plastic-like.
Science Struck
Science Struck: Conduction, Convection, and Radiation
Explains the concept of heat transfer and describes conduction, convection, and radiation which are the three modes of heat transfer. Includes formulas, examples, and applications.