Summary
Contents
Subject index
This book provides materials to enable students aged 5-11 years to learn about the world around them through hands-on activities.
Explaining Physical Changes
Explaining Physical Changes
In order to explain why many materials behave in the ways they do it is necessary to understand something of atomic theory, at least in a very simple form (∗8.l). Simple investigations can help in the development of such an understanding and are likely to be particularly useful for older and more able pupils. Those suggested here are of two kinds: making models of materials, and observing more closely some materials and changes which may already be familiar. The aim in both is similar: to show how the properties of materials and the changes they undergo depend on the behaviour of atoms and molecules.
8.2–8.4: Explaining the Properties of Solids, Liquids and Gases
Models can be effective in helping to explain and ...
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