Colour Disco!!!

Do you know how to make all the colours explode? The ingredients are dishwashing liquid, a bowl, food colouring and a cotton bud. Firstly, you put in milk and then you put in the food colouring into the milk. Then, put in the dishwashing liquid. Then you will see the reaction starting. The reaction is starting because of the soap molecules are bouncing off each other to find fat from the milk. I liked it because I saw a rainbow in a bowl.