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Liquid Nitrogen Ice Cream: Fractional Distillation and Phase Changes

Explore fractional distillation and phase changes through liquid nitrogen ice cream.

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grade:

7

10

time:

1 class period

active lab time:

20

minutes

objectives:

- Describe what liquid nitrogen is and how we produce it through fractional distillation
- Describe what boiling point is using a substance other than water
- Explain how liquid nitrogen makes ice cream using scientific vocabulary and concepts

science concepts:

states of matter, phase changes

essential questions:

- What is liquid nitrogen and how do we produce it through fractional distillation?
- How does liquid nitrogen help make ice cream?
- What phase changes occur when we make ice cream with liquid nitrogen?

how did it go?

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