Georgia State University
Georgia State University: Hyper Physics: Heat of Vaporization
A discussion of the vaporization process and the energy changes which accompany the process. Includes an informative graphic and a discussion of how to determine the heat of vaporization.
Georgia State University
Georgia State University: Hyper Physics: Phase Change Concepts
An indexing page for the HyperPhysics site. This page includes links to a variety of pages at the site which contain information related to phase changes. Each individual page consists of informative graphics and clear explanations.
E-learning for Kids
E Learning for Kids: Science: Bermuda Triangle: What Is Condensation?
Cindy is at the beach learning a lot about water. Join her to explore the water cycle.
Science Education Resource Center at Carleton College
Serc: Evaporation: Investigating Factors That Affect It
In this guided inquiry investigation, students examine conditions to see what affect these conditions have on evaporation rates.
Science Education Resource Center at Carleton College
Serc: Exploring States of Matter Gases
In this series of chemistry labs, students learn about the three states of matter by observing how molecules contract or expand as they change state.
Michael Blaber, PhD
Florida Sate University: Changes of State: Heating Curve for Water
Discusses the phase changes and heating processes of water and how this can be illustrated with a heating curve.
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.
Museum of Science
Museum of Science and Industry: Online Science: Make Ice Cream
Follow these step-by-step instructions to make homemade ice cream. Learn the chemistry and physics behind this summertime treat.
Sophia Learning
Sophia: Phase Diagrams: Lesson 2
This lesson will explain how a phase diagram graphically represents phase changes. . It is 2 of 3 in the series titled "Phase Diagrams."
CPALMS
Florida State University Cpalms: Florida Students: Heat and States of Matter
Learn how states of matter can change as heat is added to a system.
Georgia State University
Georgia State University: Hyper Physics: Heat of Fusion
The heat of fusion is defined and described. A graphical representation of the heat of vaporization is given. A method for measuring and calculating the heat of fusion is also presented and explained.
Georgia State University
Georgia State University: Hyper Physics: Saturated Vapor Pressure
The meaning of vapor pressure is introduced. The distinction between evaporation and boiling is discussed and explained. The reason that liquids undergo vaporization is explained.
Oklahoma Mesonet
Oklahoma Climatological Survey: Heat Transfer
A discussion from the Oklahoma Climatological Survey of the thermal factors effecting the movement of air masses in the atmosphere. Numerous topics such as methods of heat transfer, latent heat, phase changes (including sublimation and...
University of Florida
Chem. 2041 Lecture Notes: The Forces Between Molecules
A discussion of the variety of forces which hold molecules together. The relative strengths of these forces for the various states of matter is discussed. The effect of such forces on the boiling points and other phase change...
University of Maryland
University of Maryland: Boiling at Reduced Pressure
A page from the University of Maryland Physics Lecture Demonstration Facility. Provides directions for a teacher demonstration of the dependency of the boiling point upon pressure. Shows apparatus and set-up; provides suggestions. Easily...
Other
King County Court House: Heating & Cooling Curves [Pdf]
This page is a lab that will teach you about heating and cooling curves.
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.
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.
Concord Consortium
Concord Consortium: Phase Change
In this activity, students explore phase change at a molecular level. (Requires Java)
American Chemical Society
Middle School Chemistry: Changing State Melting
Explore the phase change that occurs when ice is melting.
Chem Tutor
Chemtutor: Heating Curve Problems
Nice set of problems dealing with the concept of a heating curve. Students can click on the question and get immediate feedback on their answer.
eSchool Today
E School Today: The Changing State of Matter
Learn about the changing states of matter.
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.
Wisc-Online
Wisc Online: Chemistry: Heat Transfer
Answer the thermal energy transfer questions correctly, and advance around the baseball diamond.