Chem Tutor
Chemtutor: Walking Up the Phase Change Graph
Good exercise graphing a phase change graph from solid to liquid to graph. Includes temperatures and all energy changes for water through this process.
Frostburg State University
Frostburg State Chemistry Online: Water Bond Angles & Phase Changes
Describes the bond angle of the water molecule during the transition from liquid to gas state. Also provides several examples and explanations for responses and answers given.
National Association of Geoscience Teachers
Nagt: Demonstrating Climate Change and the Water Cycle
Demonstration of the greenhouse effect and its role in climate change, discussion of the phases of water and the water cycle, and a hands-on experiment to investigate the role of temperature in phase changes of water.
University Corporation for Atmospheric Research
Ucar: Just a Phase: Water as a Solid, Liquid, and Gas
This site helps students construct a model of the arrangement of water molecules when present as solid, liquid or gas. Includes background information, lesson plans, links to standards and assessment ideas.
Chem Tutor
Chem Tutor: Chemistry: States of Matter
This lesson focuses on the states of matter: solids, liquids, and gases. It also discusses the Kinetic Theory of Matter, Thermodynamics, Triple point, Phase Change Graphs and the Heating Curve of Water. It provideds adrawing of a heating...
Other
Water on the Web: Studying Heat Budgets of Lakes
Interesting activity that discusses many aspects of the energy in a lake, including the evaporation of the water into gas.
New York University
New York University: States of Water
Use this resource to learn about the three different phases of water; solid, liquid, and gas. What happens to water as it changes into a solid or gas? Includes short and easy to do activity.
Museum of Science
The Atom's Family: Phases of Matter
Help the Phantom choose a material and observe the changes at different temperatures in the molecule chamber. What happens to the elements or molecules as the temperature changes?
University of Maryland
U. Of Maryland: Latent Heat: Ice to Water to Steam
A page from the University of Maryland Physics Lecture Demonstration Facility. Provides directions for a teacher demonstration of latent heat in the melting and vaporization process. Shows apparatus and set-up; provides suggestions....
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,...
Scientific American
Scientific American: What Is an Exothermic Reaction
Scientific American magazine, in the person of Dr. Gerald R. Van Hecke, gives a wonderfully complete answer to this question. Complete with very many hot words for additional background. And a wonderful NASA launch photo.
Science Buddies
Science Buddies: What's the Point of Boiling?
You know that water can exist in three separate phases: solid (ice), liquid (water), and vapor (steam). To change from one phase to another, you simply add (or remove) heat. When water boils, what happens to molecules (for example sugar...
TeachEngineering
Teach Engineering: How Cold Can You Go?
Students explore materials engineering by modifying the material properties of water. Specifically, they use salt to lower the freezing point of water and test it by making ice cream. Using either a simple thermometer or a mechatronic...
TeachEngineering
Teach Engineering: Natural Disasters
Students are introduced to our planet's structure and its dynamic system of natural forces through an examination of the natural hazards of earthquakes, volcanoes, landslides, tsunamis, floods and tornados, as well as avalanches, fires,...
Other
Science Alive: Melting Point Simulation
Percy Julian and Josef Pikl used the fact that melting point-the temperature at which a substance changes from a solid to a liquid-is a characteristic property of a substance to prove that the British chemist Robert Robinson could not...