Conclusion:
1. The Melting Point (fusion) of a substance is the temperature at which a _______ changes to the ______ state.
2. At the melting point, the substance exists as both a _____ and a ______.
3. What happens to the temperature of the substance as it is being heated at the melting point?
4. How can this be explained?
5. The Boiling Point (vaporization) of a substance is the temperature at which a _______ changes to a ______.
6. At the boiling point, the substance exists as both a _____ and a ______.
7. What happens to the temperature of the substance as it is being heated at the boiling point?
8. How does the graph look at the melting and boiling points?
9. What happens to the Kinetic Energy of the molecules at the melting and boiling points and how do you know?