"Exploring the Characteristics of Melting and Solidification" ppt courseware package (including material files)-Guangdong and Shanghai version eight courseware

Guangdong and Shanghai Version Eight "Exploring the Characteristics of Melting and Solidification" ppt courseware package (including material files) 1. What conditions are required for the melting and solidification of substances? Are different substances melting and solidifying the same? 2. Does the solid melt into a liquid during the melting process or does it have a process? 3. How does the temperature of the solid change during the melting process?

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