Center for Literacy and Disability Studies, University of North Carolina at Chapel Hill
Tar Heel Reader: Liquids: A Science Curriculum Resource Support
Read about solids, liquids, and gases, and find out about the phases of matter.
Crescent Public Schools
The Internet Science Room: The Kinetic Theory & Phase Change
This tutorial helps students understand the Kinetic Theory, which explains the effects of temperature and pressure on matter as it goes through phase changes.