At home I took the thickest form and the thinnest and put them in small containers. The thinner form I filled with water, the thicker one I poured water around the outside.
Filling the pots with water on the inside wasn’t as interesting, due to shadows cast you couldn’t see the parts crumbling as nicely as when the water was poured around the pot. Also, when the walls of the pot eventually fell away the water spilled out into the tray, taking bits of clay with it and the water ended up milky. It felt underwhelming.
When the pots dissolved with the water around them it was much more interesting, big chunks fell away and watching it melt was really pleasing. I wanted to see each bit fall away, whereas when it was just on the inside I couldn’t see as much.
After my first lot of experiments in the kitchen I decided that fully submerging the forms in water meant they dissolved too quickly and didn’t look as exciting, so I started a new experiment with the form partly submerged in water and filmed it at short intervals with a timestamp to help me keep track of how long it took for one form to vanish. This test was done with completely bone dry greenware, the experiments I did at home were with slightly wet forms which I only realised once I felt the bone dry ones the next day.
After the first timed experiment I looked at how long it would take for a form to dissolve on top of a bed of clay from a previous form.