In this class, we have learnt the how to make color change when heats up.

I have tested all kinds of mixing pigment, however, the effect is not that obvious. Some of the painting are too thick, so cannot see the effect when heats up.

I found out the blue pigment mixed with white Acrylic is the most obvious one. So I painted it on a bigger size of paper, and made a sewing graphic of the cloud+ rain.

Finally, the blue color changed pretty well even people just make their hands on it. The color changed obviously. However, it does not work well when I layer down the cloudy graphic with the heat power.

What I have learnt?

The gap between the sewing graphic needs to be smaller, or even sew it in cross-lined. Because in this way, when power up the battery, the heat will not diffuse that quickly. If this layer can keep the heat well, then the cloudy graphic can be seen successfully.