Homogeneous and heterogeneous mixtures.

 To finish with mixtures we mix put sugar, salt and compost into hot and cold water and we predict if substances dissolve better in hot or cold liquids ( if they do) and then we check if our predictions were right.
We observe that substances dissolve much better in hot water and we also see thar compost never dissolves. Water and compost is a heterogeneous mixture.

Mixtures powerpoint from Jose Martínez Alcolea