University of Colorado
University of Colorado: Physics 2000: Bose Einstein Condensation: Temperature and Absolute Zero
From the Physics 2000 site, this page exemplifies their usual superb discussion of the concepts of heat, temperature, and absolute zero. Using an entertaining series of cartoon characters, the page gives a very understandable discussion...
Concord Consortium
Concord Consortium: Stem Resources: Diffusion
An activity to understand how diffusion is a result of random motion and collisions of particles. With the virtual labs, explore how a drop of food coloring into a glass spreads and how perfume diffuses at different temperatures and...
University of Sydney (Australia)
Thermal Physics Module/temperature and Heat [Pdf]
A lengthy set of lecture notes on the distinction between heat and temperature. The science of thermography is introduced; the Kelvin temperature scale is explained and compared to the Celsius temperature scale. The meaning of a triple...