Without leaving the community, children can experience the mysteries of science up close? Recently, the Meizhou Road Community Good Neighbor Center in Daqiao Street brought a "naughty nitrogen" magic to the children, allowing everyone to follow the science teachers to explore the relevant knowledge of "liquid nitrogen", help cultivate young people's interest and hobby in science and technology, and enhance everyone's innovative spirit and practical ability.
At the beginning of the activity, the science teacher told the children about the basic knowledge of liquid nitrogen. Liquid nitrogen is the liquid form of nitrogen formed at low temperatures, colorless, odorless, non-corrosive, non-flammable and extremely low temperature. Just when everyone was curious, the teacher showed the carefully prepared "magic": under the change of liquid nitrogen, there were clouds of clouds at the event site; then, a red rose that was quick-frozen in liquid nitrogen at minus 196 ° C, with a light tap, magically shattered and scattered...
"How exactly? It's amazing..."
Faced with a mysterious scientific world, the children were amazed and inquired about the principles of it with curiosity. The popular science teacher patiently answered questions and analyzed the morphological changes of nitrogen at different temperatures, as well as the scientific knowledge in "magic".
In addition, there are also "super air cannon", "super big bang", "balloon change" and other links, which are all interesting "magic tricks" designed with liquid nitrogen to enhance children's interest in scientific exploration. At the scene, the teacher also invited the children to experience it themselves and deepen their understanding of knowledge.
This activity aims to broaden the horizons of young people in the community, let everyone feel the infinite power of science, and stimulate and cultivate everyone's desire to explore and scientific spirit. After the course, the children expressed their love for this type of science and technology innovation activities and hoped to participate in them in the future.
Text/Image: Dou Yuqi
Editor: Wu Baixin
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