Elastic materials... - ...temporarily change shape when a force is applied e.g. elastic bands., Non-elastic materials... - ....permanently change shape when a force is applied e.g. plasticine., Changes in matter... - ...occur when a material changes state (and shape)., Physical changes in matter happen... - ...when we bend, heat, freeze, twist, squash or squeeze something., Chemical changes in matter happen... - ...when we burn a substance or expose it to air.,

Describing Changes in Shape and Matter

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