Digestive System Experiment: How Does Bile Break Down Fat | Magic Milk

The liver makes bile, which is used by our bodies to break down fat in the small intestine. We did this science experiment to show how bile works.
Materials Required:
Milk (at least 2% fat)
Food Coloring
Dish soap
Cotton ball
Why does this happen? Soap contains a chemical similar to what is found in bile. It surrounds the fat in the milk and tries to break it into smaller pieces. This is what it does to dirt also, which is why we use it to wash our clothes and dishes. As the soap swirls around the fat in the milk, trying to break it down, the food coloring gets moved around as well. You can watch it continue to swirl as the soap tries to do its job. This is what happens in your small intestine as well. The bile surrounds fat particles to break them down.
Music: www.bensound.com