We did a lab for science which involved mixing the following ingredient  slowly, medium speed and quickly. The ingriendients we used were: powdered milk, cocoa powder and food coloring all of them where mixed with water and stirred.
The chart below shows roughly what the bubbles in the middle of the substances looked like after mixing.
The video below shows us conducting the experiment
https://youtu.be/quKnW6L1iKE