Experiment W19:
Leave different water samples to dry

*  Six different 1-ml samples
   of water are left to dry in a
   multi cavity blister packing:

1 distilled water
2 fresh water   3 mineral water   4 lime water   5 salt water   6 sugar water

1 distilled water: no residue                   2 fresh water:  a small quantity of a solid
3 mineral water: no residue                    4 lime water: white solid substance
5 salt water: white crystals = cubes       6 sugar water: white solid substance
Compare these water samples: Use a battery and a LED    Experiment W20              home