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University of Colorado
University of Colorado: Ph Et Interactive Simulations: States of Matter
Watch different types of molecules form a solid, liquid, or gas. Add or remove heat and watch the phase change. Change the temperature or volume of a container and see a pressure-temperature diagram respond in real time. Relate the...
American Chemical Society
Middle School Chemistry: Changing State Melting
Explore the phase change that occurs when ice is melting.
eSchool Today
E School Today: The Changing State of Matter
Learn about the changing states of matter.
Chem4kids
Chem4 Kids: Liquid to Gas and Back to Liquid
This resource discusses ways liquids can change into gases and vice versa.
University of Waterloo (Canada)
The University of Waterloo: The Heating Curve
The heat of vaporization along with several other thermal properties are explained. Sample problems are given. Illustrations.