Lab #1 What Difference Does Milk Fat Make?
Materials
aluminum pie pan wooden splint toothpick liquid dish detergent whole milk food coloring (4 different colors)
I gathered the materials and then poured whole milk into a shallow aluminum pan. The milk came to a depth of about 1 cm. I then added a few drops of water-soluble food colorings in the outer edge of the pan. The drops of different colors were placed at these hour positions on a clock: 3, 6, 9. And 12 (Bodine, 2014).
Next, I dipped a toothpick into detergent and just touched the surface of the milk right in the center of the container, but I held the toothpick still in that place for a while. Soon, the food coloring on the surface of whole milk seemed to sort of dance and move around (Bodine, 2014)..
The fat globules in the whole milk holds tight to the dish soap, forming a sort of bond that pushes away the food coloring and the water in the milk as the bonds form (Bodine, 2014).. Just to test the theory about the fat and dish soap bonding, I tried different types of milk. With 2% milk, there was some activity of the dish soap, and with 1%, there was even less. Skim milk did not produce the effect at all. I also tried soy milk and almond milk,...
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