In our science experiment today we poured full cream milk into a bowl.
Next we dropped in some food colouring.
We put dishwashing liquid on a cotton bud and touched the milk with it.
There was a fantastic chemical reaction between the soap and the milk's fat. Milk is made up of vitamins, minerals, proteins and fats. When the soap is added to the milk is breaks apart the protein and the fats. The soap heads for the fats creating the cool bursting of colour.
When there is no more movement, all the fat molecules have been found.