Last week, I starting introducing some unusual surfaces to the Prepper class. I started with plastic wrap. We painted on it and then drew on it. The drawings were much more popular, because I taught them that they could erase markers off of the plastic wrap with their fingers. Erasing is magical, making this a very exciting discovery! This week, I showed them how to use cooking oil in a painting. We started by putting a sheet of paper in a shallow bin and pouring a little bit of water on it. Then, I asked my little artists to paint whatever their hearts desired. I limited their palette to the primary colors so that they could review how to mix colors while they worked. Once the papers were all painted, I drizzled some vegetable oil onto their paintings. The paint moved! Excitement levels were high as they tried to nudge the oil out of the way, only to find that it would resist the movement. They really enjoyed the experiment, and their artwork came out beautifully, too!