Emulsifier Exit Ticket

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1 Asɛmmisa

After figuring out which powder is flour, Keisha’s mom makes gravy. Keisha notices that two of the ingredients her mom uses are water and chicken fat. When the water and chicken fat are mixed together, the mixture separates into layers. When Keisha’s mom adds gelatin to the mixture and stirs, the gravy stays mixed.

Keisha draws a diagram of the mixture before and after adding the gelatin in her notebook.

Model:

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Based on your investigations into emulsifiers during this unit, why do water and fat separate into layers when they are stirred together, but completely mix when gelatin is stirred in? (7 pts)
Sentence starters:
Claim: Water and fat separate into layers because _____ . Water and fat completely mix when gelatin is added and stirred because _.
Evidence: In the model, it shows ___
Reasoning: When liquids separate, this means _. These liquids mix when _ because _________