Before watching the videos, I strongly urge you to mute them as there may be profanity in one of them.
What did you find out?
1. food colouring swirled with the water until it blended in. Cocoa powder didn’t mix very well, and as a result there was always a large clump in the middle. Powdered milk mixed almost instantaneously with the water.
2. Cocoa powder didn’t really mix while food colouring and powdered milk blended quite well.
3. when stirred faster, more of each substance gathered to the center.
4. The universe expands in a similar way.