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Exploring Changes in States of Matter

Many of us have seen water change from a solid to a liquid and from a liquid to a gas, and we know that other substances undergo similar transformations (although often under more extreme conditions). What these changes have in common is a change in temperature, a result of either heating or cooling. In this video segment, produced for Teachers' Domain, students visit a lab at the Massachusetts Institute of Technology where scientists study a substance that changes state without a change of temperature.

The web page is located within Teachers'Domain, an online educational resource produced by WGBH Boston. It has two related components ? collections and courses ? that help teachers enhance their students' learning experiences and advance their own teaching skills. The Teachers' Domain collections include classroom-ready multimedia resources for use in lessons or independent study. Registration is free for everyone (teachers, students, parents).