![](https://earlylearningtoys.org/wp-content/uploads/2015/08/11850085_1060406660636469_894622424_n.jpg)
The changing state of water from ice to evaporation is awe-inspiring since in its simplest form.
The night before mix the food colouring with water. Submerge toys, flowers or something else interesting (I used rubber small toys – they do not float and will not be damaged by ice). Leave container to freeze overnight. Next day I asked my two boys to free the treasures hidden inside by hummers.
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