In this lesson, we will introduce the students to the basic ideas of freezing and melting through ice cream. The key point today is to show the big picture on states of matter and the transformation between each of them. To explore the idea thoroughly, we will start with a work sheet on matter changing. Then, to enhance the impression of the students, we will have a demo of the effects of salts on ice melting. Lastly, we will wrap up the course by teaching the students how to make ice cream.
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