Estrella Mountain Community College
Online Biology Book: Chemistry Ii: Water and Organic Molecules
Online biology textbook discussing the chemical nature of water, and the importance of its molecular structure to life. Also discusses at length the organic molecules nucleic acids, proteins, lipids, and carbohydrates.
University of Sydney (Australia)
University of Sydney: Structure and Properties of Materials/thermal Physics
An exhaustive set of "lecture notes" on various topics in thermal physics (including thermal expansion). Explanations are well done and more interesting than most. Includes both a mathematical and conceptual treatment of topics. Humor,...