The shadow of science can be seen everywhere in our lives and work, such as wind power , maglev trains, etc. Nowadays, primary schools have also opened science classes, which not only improve children's scientific literacy, but also play a role in scientific enlightenment.
In order to help children better master scientific knowledge, senior chemistry teacher Qiao Junfang collaborated with biology teacher Ren Lan and physics teacher Zheng Qiong to write the series of books "Hello, Primary School Science", which combines primary school science knowledge with comics and tells about physics, geography, chemistry, human body and other aspects of knowledge.
In "Chemical Reactions", it tells about the decomposition reaction of elephant's "toothpaste", the chemical reaction of burning iron, the replacement reaction involved in making copper coins , the metathesis reaction involved in "crushing" boulders, and the neutralization reaction involved in deadly sewage. Through the escape encounters of the little protagonists, a series of chemical reactions are connected in series, which is very interesting.
There are many other aspects of chemistry in life, such as the invention of sparkling drinks, why soap can remove stains, how to put out fires on different occasions, and how to make pasta softer. It is precisely because of the existence of chemical reactions between different substances that we can obtain more new substances and make objects have new changes, bringing us more convenience.
In "Force and Motion", Teacher Qiao introduced the concept of gravity and gravitation by climbing a tree; the tiger chased the little protagonists, but fell on the lubricating oil, telling us the existence of friction, which we usually rely on for walking; making wooden stools, different sizes of area, naturally have different pressures; Gorilla used the lever principle to help move the stone, but unexpectedly it bounced 50 kilograms away. These phenomena are exactly the physical phenomena related to force in our lives.
With power, there will naturally be movement. With movement, energy such as thermal energy, kinetic energy, chemical energy , light energy, and mechanical energy will be generated. We use hair dryers and rice cookers to convert electrical energy into heat energy. When we turn on the desk lamp, it is actually the process of converting electrical energy into light energy. When we ride a bicycle, chemical energy is converted into kinetic energy.
Science is not just physics and chemistry, but also biology, geography, astronomy and other subjects. Learning scientific knowledge can not only help children understand the world we live in and understand the principles of how things work, but also help cultivate children's thinking ability and hands-on practical ability.
Through scientific inquiry, experimental activities, and reading popular science books, children can learn to explore, question and cooperate, and stimulate curiosity and desire to explore.
This set of books combines pictures and text, making it easy to understand, vivid and not difficult. If you happen to have elementary school students at home, this set of books is a very good book for scientific enlightenment. You can give it a try.
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