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This Can Boiling Make Something Freeze? lab resource also includes:
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Use boiling as an avenue for freezing. Young scholars watch as liquid nitrogen removes heat from the ingredients for ice cream. As this happens, the nitrogen boils and the ice cream freezes—all in the same container. A little science magic!
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Instructional Ideas
- Review information related to phase change and boiling and freezing points prior to the activity
Classroom Considerations
- Review safety precautions when working with liquid nitrogen
- Allow time to collect and prepare materials for the activity
Pros
- Provides important background information for teachers and students
- Relates a science concept to something relevant
Cons
- None