We filled a bowl with milk. We dropped some dye and food colouring into it. We made some predictions (sensible guesses) about what we thought would happen if we added dishwashing liquid.
Some of our predictions were:
*the colours would mix
*it would make a colourful bubble
*it would turn hard
We added the dishwashing liquid and we observed:
*the colours moving
*the milk moving
*it looked a bit like art
But WHY???
Milk has got some fat in it. When the dishwahing liquid is added it breaks down the fat and causes the milk to move. The colours made it easier to see the movement of the milk.
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