Chem4kids
Chem4 Kids: Thermochemistry
This site provides a general overview of thermochemistry, the division of chemistry that deals with temperature in chemical reactions. Content explores what heat and cold really are, the heat and energy around you, and a bit about Lord...
Khan Academy
Khan Academy: Heat and Temperature
An explanation of using heat capacity to calculate heat.
Other
States of Matter and Properties of Gases: Terms
A very complete list of terms that are important to the study of gases. This resource is a web archive.