For your lab, you’ll be investigating what’s known as the “hot chocolate effect.” You don’t need to know anything about this effect and you certainly don’t need to try to look it up or read about it. (This usually just makes things worse.) Instead, take a look at my intro and then use this as a starting point for your own investigation:

Truly, I hope you always tap the bottom of your mug from now on when you stir hot chocolate.

(I created this other post for the general public about this effect, too. I think the effect worked better in this video.)