Recently, a video of a middle school physics teacher in Jingdezhen, Jiangxi, vividly telling the story of "sublimation of dry ice" became popular.
Teacher Xia said that students usually see the sublimation of dry ice in books and test papers, but they rarely see it in real life, so they did such an experiment.
After reading it, the netizen said: It is another teacher of other people's home!
(Producing Zhou Jing)
Editor in charge: [Li Yuxin]