We know that oil and vinegar will mix together and not separate into layers when an emulsifier is added to them. Let’s take a closer look at the way these liquids mix. These images show, step by step, what happens when oil, vinegar, and lecithin mix. The last image is a zoomed-in image of the completely mixed liquids.
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Drawing Nanovision Models of Emulsifiers
Follow the instructions on the worksheet. Make your model to show what happenes when an emulsifier (lecithin) is added to oil and vinegar on paper.
Link to the simulation: https://learning.amplify.com/modelingmatter/
Steps to get to the Emulsifier Simulation
1) Click on the 3 lines in the upper left corner
2) Choose Emulsifier
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Question 1
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What evidence do you see that shows the liquids are mixing - from the first to the last photo?
In the photo, it shows ____________________
Question 2
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How do you think the lecithin gets oil molecules and vinegar molecules to mix?
The lecithin gets oil and vinegar molecules to mix because _____________________
Question 3
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Question 4
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Question 5
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How did the emulsifier’s shape help to mix the molecules?
Question 6
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Question 7
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How can you tell? Explain your answer for Question 6
In the sim, it shows Molecule 1 and Molecule 5 are _______________
Question 8
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Question 9
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How can you tell? What do emulsifiers do?
Molecule 1 and Molecule 5 are _______________. Emulsifiers _______________
Trial 1: Add molecule 5 and molecule 6 in the dish. Are they attracted to one another and mix?
A) They are attracted to one another and mix
B) They are NOT attracted to one another and DO NOT mix
Trial 2: Add molecule 5 and molecule 6 in the dish. Now add the emulsifier molecule. Mix them with the help of an emulsifier. Are they attracted to the emulsifier and mix?
A) They are attracted to the emulsifier and mix
B) They are NOT attracted to the emulsifier and DO NOT mix
This picture shows what happened when a food scientist mixed two substances together. Are the substances mixing together?
A) Yes they are mixing
B) No the are not mixing
This picture shows what happened when a food science mixed two substances together, then added something else. What did the food scientist add?