MM 3.6-3.7

Emulsifier Review - Observable Scale (What you can see)

Oil and Water (Vinegar) Mixture

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Do you observe (see) layers?

A) Yes, there are layers

B) No, there are no layers

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Does this mean the oil and water mix or not mix (separate)?

A) The oil and water mixed

B) The oil and water did not mix (stayed separate)

1

Are the oil molecules and water molecules attracted to each other?

A) The oil and water molecules are not attracted to each other

B) The oil and water molecules are attracted to each other

Oil, Water (Vinegar) and Lecithin Mixture

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1

Do you observe (see) layers?

A) Yes, there are layers

B) No, there are no layers

1

Does this mean the oil and water mix or not mix (separate)?

A) The oil and water mixed

B) The oil and water did not mix (stayed separate)

1

Does this mean the oil molecules are attracted to the lecithin (emulisifier) molecules?

A) The oil molecules are attracted to the lecithin molecules

B) The oil molecules are not attracted to the lecithin molecules

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Does this mean the water molecules are attracted to the lecithin (emulisifier) molecules?

A) The water molecules are attracted to the lecithin molecules

B) The water molecules not attracted to the lecithin molecules

Now we are going to look at the oil and water (vinegar) mixtures at the nanoscale (molecules)

Oil and water (vinegar) BEFORE adding Lecithin

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Does this model show vinegar molecules and oil molecules attracted (combined, connected) to each other?

A) Vinegar molecules and oil molecules are not attracted to each other

B) Vinegar molecules and oil molecules are attracted to each other

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Does this model show the oil and vinegar (water) molecule mixing or not mixing (staying separate)?

A) Mixing

B) Not mixing (staying separate)

Evaluating Models of Emulsifiers: We are going to evaluate (look/grade) the sandwich model and the surrounding model to see which emulsifier model is more correct.

Sandwich Model

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Is the lecithin (emulsifier) molecule attracted to the oil molecule?

A) The lecithin molecule is attracted to the oil molecule

B) The lecithin molecule is not attracted to the oil molecule

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Is the lecithin (emulsifier) molecule attracted to the vinegar molecule?

A) The lecithin molecule is attracted to the vinegar molecule

B) The lecithin molecule is not attracted to the vinegar molecule

Surround Model

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Is the lecithin (emulsifier) molecule attracted to the oil molecule?

A) The lecithin molecule is attracted to the oil molecule

B) The lecithin molecule is not attracted to the oil molecule

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Is the lecithin (emulsifier) molecule attracted to the vinegar molecule?

A) The lecithin molecule is attracted to the vinegar molecule

B) The lecithin molecule is not attracted to the vinegar molecule

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Which model is more correct?

A)

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B)

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Modeling

Create a model that shows the location and arrangement of the vinegar and oil molecules before and after lecithin is added to the mixture. The picture below shows what the mixtures look like with our eyes.

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Now go to google classroom, science, classwork, and find MM 3.7 Model. Use the model to show what the molecules look like for the oil and vinegar mixture BEFORE and AFTER adding lecithin.

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CER (Claim / Evidence / Reasoning) Paragraph

Question: What is an Emulsifier?

Use the words in the word bank to answer this question

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Claim (Answer to the question): What is an Emulsifier?
Sentence starter: An emulsifier is ______________
Type your answer below

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Evidence: Information that shows your answer is correct. Use evidence from the MM 3.7 Emulsifier Model
Sentence starter: In the MM 3.7 model, the before picture shows and the after picture shows .
Type your answer below

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Evidence: Information that shows your answer is correct. Use evidence from the emulsifier test in MM 3.4
Sentence starter: In the emulsifier test, it showed ____________ .
Type your answer below

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Evidence: Information that shows your answer is correct. Use evidence from the simulation when we used the emulsifier molecule in MM 3.5
Sentence starter: In the MM simulation, it showed ____________ .
Type your answer below

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Reasoning (Explanation): Explain what is an emulsifier?
Explain what happened when lecithin is added to the oil and vinegar mixture.
Sentence starters:
- Oil and vinegar are separate and do not mix because _____
- When lecithin is added to the oil and vinegar, the oil and vinegar _ because the lecithin molecules are _______
Type your answer below

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Independent Practice: Now it is your turn. Write a CER paragraph answering the question below. Use the MM 3.7 Model and one piece of evidence from the activities we did in class to support your answer.
Question: What is an Emulsifier?
Use the words in the word bank to answer this question
Type your answer below

MM 3.6-3.7

Do you observe (see) layers?

Does this mean the oil and water mix or not mix (separate)?

Are the oil molecules and water molecules attracted to each other?

Do you observe (see) layers?

Does this mean the oil and water mix or not mix (separate)?

Does this mean the oil molecules are attracted to the lecithin (emulisifier) molecules?

Does this mean the water molecules are attracted to the lecithin (emulisifier) molecules?

Does this model show vinegar molecules and oil molecules attracted (combined, connected) to each other?

Does this model show the oil and vinegar (water) molecule mixing or not mixing (staying separate)?

Is the lecithin (emulsifier) molecule attracted to the oil molecule?

Is the lecithin (emulsifier) molecule attracted to the vinegar molecule?

Is the lecithin (emulsifier) molecule attracted to the oil molecule?

Is the lecithin (emulsifier) molecule attracted to the vinegar molecule?

Which model is more correct?

Claim (Answer to the question): What is an Emulsifier?Sentence starter: An emulsifier is ______________Type your answer below

Evidence: Information that shows your answer is correct. Use evidence from the MM 3.7 Emulsifier ModelSentence starter: In the MM 3.7 model, the before picture shows ____________ and the after picture shows ____________ . Type your answer below

Evidence: Information that shows your answer is correct. Use evidence from the emulsifier test in MM 3.4Sentence starter: In the emulsifier test, it showed ____________ . Type your answer below

Evidence: Information that shows your answer is correct. Use evidence from the simulation when we used the emulsifier molecule in MM 3.5Sentence starter: In the MM simulation, it showed ____________ . Type your answer below

Do you observe (see) layers?

Does this mean the oil and water mix or not mix (separate)?

Are the oil molecules and water molecules attracted to each other?

Do you observe (see) layers?

Does this mean the oil and water mix or not mix (separate)?

Does this mean the oil molecules are attracted to the lecithin (emulisifier) molecules?

Does this mean the water molecules are attracted to the lecithin (emulisifier) molecules?

Does this model show vinegar molecules and oil molecules attracted (combined, connected) to each other?

Does this model show the oil and vinegar (water) molecule mixing or not mixing (staying separate)?

Is the lecithin (emulsifier) molecule attracted to the oil molecule?

Is the lecithin (emulsifier) molecule attracted to the vinegar molecule?

Is the lecithin (emulsifier) molecule attracted to the oil molecule?

Is the lecithin (emulsifier) molecule attracted to the vinegar molecule?

Which model is more correct?

Claim (Answer to the question): What is an Emulsifier?Sentence starter: An emulsifier is ______________Type your answer below

Evidence: Information that shows your answer is correct. Use evidence from the MM 3.7 Emulsifier ModelSentence starter: In the MM 3.7 model, the before picture shows ____________ and the after picture shows ____________ . Type your answer below

Evidence: Information that shows your answer is correct. Use evidence from the emulsifier test in MM 3.4Sentence starter: In the emulsifier test, it showed ____________ . Type your answer below

Evidence: Information that shows your answer is correct. Use evidence from the simulation when we used the emulsifier molecule in MM 3.5Sentence starter: In the MM simulation, it showed ____________ . Type your answer below

Claim (Answer to the question): What is an Emulsifier?
Sentence starter: An emulsifier is ______________
Type your answer below

Evidence: Information that shows your answer is correct. Use evidence from the MM 3.7 Emulsifier Model
Sentence starter: In the MM 3.7 model, the before picture shows and the after picture shows .
Type your answer below

Evidence: Information that shows your answer is correct. Use evidence from the emulsifier test in MM 3.4
Sentence starter: In the emulsifier test, it showed ____________ .
Type your answer below

Evidence: Information that shows your answer is correct. Use evidence from the simulation when we used the emulsifier molecule in MM 3.5
Sentence starter: In the MM simulation, it showed ____________ .
Type your answer below

Claim (Answer to the question): What is an Emulsifier?
Sentence starter: An emulsifier is ______________
Type your answer below

Evidence: Information that shows your answer is correct. Use evidence from the MM 3.7 Emulsifier Model
Sentence starter: In the MM 3.7 model, the before picture shows and the after picture shows .
Type your answer below

Evidence: Information that shows your answer is correct. Use evidence from the emulsifier test in MM 3.4
Sentence starter: In the emulsifier test, it showed ____________ .
Type your answer below

Evidence: Information that shows your answer is correct. Use evidence from the simulation when we used the emulsifier molecule in MM 3.5
Sentence starter: In the MM simulation, it showed ____________ .
Type your answer below