Frozen Solid | Totoka Hohoro
The behaviour of liquid nitrogen and objects cooled in liquid nitrogen.
Cryogenic temperatures, liquids that boil at room temperature, vapour layers.
Te Reo Māori Version
We recommend you ask a university lecturer to work with you on this demonstration. Often the Frozen Solid and Superconductor demonstrations are done together.
There are many safety issues with cryogenic liquids. Be sure you use protective gear and handle the liquid nitrogen correctly. We strongly recommend any teacher planning to use liquid nitrogen seek assistance and advice from a university physics department.
Individual teachers are responsible for safety in their own classes. Even familiar demonstrations should be practised and safety-checked by individual teachers before they are used in a classroom.
See Pūkawekawe (superconductor demonstration, Floating on Air) which uses liquid nitrogen, and Pena_i_te_Matao_o_Tangaroa (Solid Nitrogen)
This teaching resource was developed by the Te Reo Māori Physics Project with support from
- Te Puni Kōkiri
- The MacDiarmid Institute
- Faculty of Science, Victoria University of Wellington
- School of Chemical and Physical Sciences, Victoria University of Wellington
- The New Zealand map shown on the poster frame above is used with permission from www.nz.com.