160 Bliain Ag Freastal


Diffusion Experiment

We had such an exciting day today in the Language Class. We learned all about diffusion. Diffusion is the intermingling of substances by the movement of their particles. In this experiment, we watched how the colours from the skittles moved into the centre of the plate through the water. Why do the colours spread? Skittles are coated in food colouring and sugar. When you pour water over the skittles the coloured coating dissolves spreading through the water. The colour and sugar dissolve into the water and then diffuse through the water, making it the colour of the skittle.

First we placed the skittles in a circle on a white plate.

Then we stood back while Ms. O Connor poured warm water on our skittles.

Then we watched as the colours from the skittles spread into the middle of the plate creating beautiful displays.

Then we used our fingers to mix the colours together.

Finally, we ate the skittles!!