Ms. Brown asked her students to combine some regular cow's milk with white vinegar. Each group mixed 1 cup of warm milk with 4 tablespoons of vinegar in a glass measuring cup. After stirring the mixture, the students poured the liquids through a strainer into another beaker. The picture above shows the results of mixing warm milk with vinegar. What type of change is this? Explain.
A) It is a physical change because it is a mixture of two liquids.
B) It is a chemical change because two liquids mixed together formed a solid.
C) It is a physical change because you can separate the parts with a strainer.
D) It is a chemical change because there was a change in temperature of the milk.