This Chemistry: The Collapsing Can lesson plan also includes:
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Learners observe methods by which air can crush aluminum cans. As water in the can boils and is sealed, the can collapses as it cools. When the procedure is reversed, the can expands to its original shape. After the alternate experiment, students conclude that when water is heated in boils and forms water vapors and that the can is crushed due to the low pressure of the partial vacuum inside it.