Substances versus mixtures
Learning objectives
- To teach a basic classification of matter
- To review certain properties of matter: state, composition, atoms, molecules, pure substances, mixtures, solutions
In our everyday lives we use materials of different natures or different appearances. These materials can be classified into two categories;
- Pure substances: made up of a single component (a single type of atom or a single type of molecule)
- Mixtures: made up of several components
Within the category of mixtures, it is possible to distinguish between homogeneous and heterogeneous mixtures.
Place the items presented in the correct category.
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