- 1/2 fill a petri dish with water.
- Carefully place 4 differently coloured skittles evenly spaced around the outside of the petri dish.
Scientific reasoning: The colours of skittles melted while it sank in the water.
- What questions arose in your mind? ans. what will happen to the colours? will they mix?
- What could you do to see if your ideas are correct?I will observe it properly.
Why doesn't food colouring mix?
Because of Molecules in a gas have lots of energy and spread out even more than molecules in a liquid. Skittles are coated in food colouring and sugar. When you pour water over the skittles the coloured coating dissolves spreading through the water.
Scientific reasoning: The skittles are made of sugar and food colouring dissolves the food colouring moves over the water with sugar until it cannot move any further because of the other colours.
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