Finely divided solid matter and gases can be arbitrarily mixed. Mixtures of solids are generally non-uniform. Such mixtures are termed heterogeneous. Several mixtures of iron, sand, sulphur and sodium chloride are compounded and their properties investigated.
- Experiment guides are very easy to understand, especially for younger students
- Associated competences are directly linked to the experiments
- Curriculum compatible
- Fit for the future: implementation of tablets possible