A fun attention grabber for discussing chemical change. Liquid is poured from the same bottle into two glasses and one of them turns into milk.
(Sodium sulphate solution reacts with barium chloride solution, hidden in the second glass, to produce barium sulphate. This is insoluble in water and forms as a fine white solid).
Different Drinks from the Magic Bottle
Different Drinks from the Magic Bottle – Risk Assessment
(c) Jo Christian Oterhals