PBS
Pbs Learning Media: Mystery Mud: Exploring Changes in States of Matter
Join a group of middle-school students on a visit to a laboratory at the Massachusetts Institute of Technology, where they experiment with "mystery mud" and learn about the relationships between magnetism, particle motion, and changes in...
PBS
Pbs: Nova: Absolute Zero: States of Matter
This interactive allows you to explore the effect that temperature and pressure have on the changes in the states of matter. You can test these variables on carbon dioxide, hydrogen and water.
American Chemical Society
Middle School Chemistry: Changing State: Melting
Discover the concept that energy transfer and molecular motion cause the change in state from a solid to a liquid. Also compare state changes of water to the state changes of other substances.
Better Lesson
Better Lesson: Changing Matter:changing Matter: Is Weight the Same or Different?
Learners conduct a hands-on investigation to determine how matter, changing state, effects the property of weight. Students will collect data and graph their results. Resources include step by step instructions, a data worksheet, videos...