A few weeks ago Ms O'Connor come to our class to do a milk experiment with the class. We were in 4 groups and we had a bowl each. We filled the milk up to half way. There was four food colourings, we were only allowed three different colours. After that we put 1 food coloring in at a time. When we had put the last food coloring in we put the dish washing liquid onto one of the food colourings. It made little bubbles and swirled around. It was fun as.