5S analysed the results of their reversibility test today, by looking at the reformation of salt crystals, which they had dissolved earlier in the week. We conducted this experiment following last weeks science lesson on the topic of materials and solutions. The children predicted how each material would react when dissolved in water and then extended this research into a mini experiment- which gave us fascinating results. Both the rock salt and table salt are reversible; much to their surprise, as their predictions were quite the opposite!

Salt science