How do color-changing mugs change color?

Published: May 14, 2020, 10 a.m.

You know how you have that one mug that changes colors when you put hot coffee in it? Let's talk about that. This week, Melissa and Jam explore the chemistry of color changing items. Or rather, a specific item, a Mister Rogers mug Jam's wife has. How do items like this change color? How can heat cause changes like that? And how can it happen over and over again? Also why?