Recently, Changping Complete Primary School in Changping Town, deep in the mountains of Nanzhang County, Xiangyang City, ushered in a group of "big friends", who are from the School of Safety and Emergency Response of Wuhan University of Technology. The two-week "Colorful Holiday" course is designed to be colorful and varied, and the magical physical and chemical experiments in the fun experiment course not only allow children to explore the wonderful world of science, but also quietly sow a seed of science and innovation in their hearts.
Under the aesthetics of "light", there is the science of "light". In the "Wonderful Light" class, volunteers poured a few drops of milk into the water, stirred it well, made a simple colloid, and then used a laser to pass through the gel, so that the "shape" of the laser was clearly visible, and the abstract physical phenomenon of "light travels in a straight line" was more vividly and clearly displayed in front of the children.
Zhang Zhihe of the Tang Dynasty recorded in "Xuan Zhenzi" that "the sun sprays water and becomes neon-shaped" describes the simple method of artificial rainbows. The volunteers combined multimedia resources to demonstrate this method to the children, and used prisms and other teaching aids to carry out the "dispersion of light" experiment, the children were very serious, some curiously touched the "rainbow" with their hands, some carefully observed the structure of the prism, and some surrounded the volunteers big brothers and sisters to incarnate "100,000 whys", and the classroom atmosphere was warm.
(Fun experiment - small experiment of dispersion of light)
The smoke that rises is solid? Using a copper wire to connect a battery to a magnet can be made into an electric fan? Can a tube and a bottle be turned into a water dispenser? In the mechanics experiment class, volunteers led the children to swim in the ocean of knowledge of mechanics, showing them the smoke that "rushes down" like a waterfall, and in the "listening to the sound of 'wow'", the children felt the solid nature of smoke more clearly.
(Fun experiment - homemade electric fan)
The children also started to make their own fans, and when the other end of the copper wire touched the magnet, the fan blades spun violently, "Physics is so interesting!" "The children sighed sincerely;" I have my own water dispenser" "I will use my own water dispenser to drink water in the future" class, volunteers taught the children to make their own magic "water dispenser", the small water pipe can control the flow of water in a stretch, the children feel the wonder of air pressure in the small experiment.
(Fun experiment - homemade water dispenser)
In chemistry class, volunteers led a group of "little scientists" on a wonderful journey about the color change of red cabbage. At the beginning of the course, the volunteers carefully emphasized the safety issues in chemistry experiments; During the experiment, the red cabbage encountered different chemicals and appeared in a variety of beautiful colors, which brought a lot of visual impact to the children, and they were deeply attracted by these beautiful color changes; After the experiment, the volunteers guided the children to draw the principles and conclusions of the experiment, which were applied to daily life to test the acidity and alkalinity of common beverages and laundry detergents. The whole experiment was full of fun, and the children felt the magic, romance and charm of chemistry.
(Fun experiment - purple cabbage discoloration)
The summer social practice of "Three to the Countryside" is not only a cultural and scientific and technological activity, but also a spirit of advocating science, exploration and innovation to the countryside.
Source: Hubei Daily Client News (correspondents Mu Chao, Wang Fang, Yang Kangjie)