- Tell learners that they have now learnt that some substances are soluble and others are not (insoluble).
- Ask the learners what their mothers or sisters use to remove nail polish from their nails.
Answer: Nail polish remover or thinners.
- Is it possible to remove your nail polish with water? Why not?
Answer: Nail polish is not soluble in water.
- Can the learners think of any other examples?
Answers can include: We can clean a paintbrush in water if we used a water-based paint. If we used an oil-based paint, the paint will not be soluble in water, so we would need to use thinners.