The first experiment included a simulation of how fat is emulsified (dissolved) in the intestines. To
simulate bile or gall, I used table salt. I put a half a teaspoon of butter in each tube, and a half tea spoon of
salt. I added hot water to one, and cold water to the other. After shaking them vigorously, the one with hot
water emulsified, and became homogeneous. The one with cold water left the butter as it was.
Second,I got two clear tubes, one inch in diameter, to simulate the small intestines. I cut them from the
front with a cutter, and put adhesive felt on the inside to simulate villi. I spread them with butter, and
sprinkled salt. I passed hot water through one, and cold water through the other, as if they were the
intestines. Again, the one with hot water left little butter clinging to the sides, the one with cold water left
the butter as it was.