Observation Milk Fat Lesson

Turn your class loose to experiment with the different fat content in skim milk, whole milk, half and half, and heavy cream. This is a visually vibrant experiment, as learners drip food coloring on the surface of the products and measure how far it spreads. The procedure was written up by an education student, so it is not refined, but the activity would be useful in a health class when studying fat content in foods or in a biology class when studying hydrophobic molecules or fats.