Chemistry is a conceptual subject and, in order to explain many of these concepts, teachers use models to describe and explain the microscopic world and relate it to the macroscopic properties of matter. This resource is designed to provide strategies for dealing with some of the misconceptions that students have in the form of ready-to-use classroom resources.

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This activity can be used as part of an entire lesson plan for 11–14 year olds on observing and explaining what happens when something dissolves.