colour changing milk

We were learning about what will happen if you put food colouring mixed with milk and put a ear bud with soap on it in to the milk and food colouring.

I found It easy to put the ear bud in with the milk and food colouring.

I found it hard to make the food colouring to touch the ear bud.

Next time I will  try to make the food colouring touch the ear bud.