Water Painting

Recess in this weather can be less fun.
Today we tried something new.
Paintbrushes + water + TDS building = Fun for everyone.

 It started with a few kids.

 Then more came.

 And more!

Until everything was covered!

"Morah, is it going to stay on the wall forever?" Yitzi asked.
"What is your hypothesis?" I asked.
"It will and Rabbi Margolese is going to be really angry at you," he replied.
I really hope his hypothesis is wrong...