BBC
Bb Ci Schools: Revisewise Science: Solids, Liquids, Gases
This site contains an interactive activity in which students can learn about the three states of matter. There is also a factsheet that lists numerous properties of liquids, solids, and gases. The factsheet also uses water as an example...
Other
Warm Air: Central Air Conditioning
The operation of conventional air conditioners are described. Their parts and the refrigerant/heat exchange cycle is discussed. The use of alternative geothermal systems are explained.
Sophia Learning
Sophia: Phase Changes: Lesson 3
This lesson will introduce a phase change diagram, and show how a substance changes from one phase to another. It is 3 of 3 in the series titled "Phase Changes."
Sophia Learning
Sophia: Phase Changes: Lesson 2
This lesson will introduce a phase change diagram, and show how a substance changes from one phase to another. It is 2 of 3 in the series titled "Phase Changes."
Other
Homewood City Schools: Classification of Matter
This Homewood City Schools site has an outline form and contains lots of information about the classification and composition of matter. Some of the topics covered are matter and temperature, changes in state, composition of matter, and...
Other
Fund. Of Phys. Geography/energy, Temperature, and Heat
A page describing (in part) the distinction between energy, temperature and heat. Includes a graphic illustrating the quantity of energy needed to transform water between various states. Methods of thermal energy transfer (convection,...
Mocomi & Anibrain Digital Technologies
Mocomi: Separation of Substances
Learn about ten different methods of separation of substances.