Add the mustard and the salt to the mixture. Again, shake very hard 3 - 4 minutes. Describe the taste. Teacher will observe students watching the teacher demonstration with the oil and water, shaking and rolling the jar so that the students can conclude that oil and water are immiscible. The final assessment for this lesson is for the students to explain why the emulsion created is not a solution.
Students are to be able to conclude from the experiment that emulsions and solutions are different.
The American Chemical Society, 1988.