If you are determined to learn the knowledge of dry ice, then you must start with the practice of dry ice experiments, which can not only increase your interest in learning, but also enhance your understanding of dry ice phenomena, but also help you deepen your understanding of the concepts and principles of carbon dioxide dry ice At the same time, it will also strengthen your practical ability during the experiment using dry ice so that the knowledge you have mastered will never be forgotten.
Primary students should pay attention to the method of doing dry ice reaction experiment
First, the correct learning method is very important, to do the experiment must master the use of dry ice in the experiment. If you learn the Fa, you will get twice the result with half the effort; if you cannot learn the Fa, you will get twice the result with half the effort. Everything has its regularity. To learn dry ice, you must also master the regularity. If you simply memorize it hard and do not fully understand it, the knowledge gained is not systematic and comprehensive. Understanding is the basic condition of memory. If you understand the knowledge of dry ice, you will naturally remember it firmly. Why do some people think that dry ice knowledge is complex and difficult to remember? The reason is that the principle of dry ice is not mastered.
Doing dry ice-related experiments can cultivate your scientific attitude
Second, dry ice is a chemistry class, and chemical science is also experimental science. Chemical knowledge, like other scientific knowledge, is not understood at a glance and learned at a glance. It must be understood through hands-on experiments. Through hands-on experimental exercises, learn how to use dry ice in the experiment, carefully observe the phenomenon of dry ice smoking in the experiment, and discover the rules from it, in order to accurately and firmly grasp the basic knowledge of the sublimation experiment of dry ice.
Classroom chemistry teacher's explanation is also very important
In the classroom, the teacher systematically explained the concepts and laws of dry ice, guided us to carry out solid carbon dioxide experiments, organized us to discuss and explore new knowledge of dry ice, corrected our common mistakes, answered our difficulties, pointed out the focus of learning, and often pointed out ideas, Make a good demonstration of the use of scientific methods.
How to do dry ice experiment in experiment class
If any of the students have done dry ice in the laboratory, it will be clear. Therefore, in order to do the solid dry ice co2 experiment, before each experiment, you must clarify the purpose of the experiment and understand its principle, such as in the laboratory For the dry ice refrigeration test, you must know that you can't use ordinary glasses to store dry ice, understand the performance of the equipment used, and clarify the steps of the experiment. In the dry ice experiment, the operation rules should be followed, the phenomenon should be observed carefully, and the necessary data should be carefully recorded.
Use your brain to think positively about what you ca n’t do
Therefore, when taking an experimental class, do n’t just passively accept the knowledge taught by the teacher. It is important to work hard on your brain, think positively, focus your energy on understanding instead of memory, and find out why dry ice cannot be sealed and stored. If some problems are not understood for a while, ask the teacher as much as possible, and understand it by observing experiments and other methods, and only ask the teacher if necessary. The teacher may organize us to discuss in the class. At this time, we must actively participate and be brave to express our views. For example, how to form artificial precipitation of carbon dioxide dry ice, you can express your own opinions boldly. Develop the ability to exchange opinions and discuss issues with others scientifically, and maintain an attitude of asking for advice with an open mind.
Be careful while observing and thinking
Only know how much dry ice is in the experiment, why can't you touch it by hand? After the experiment, the obtained data should be analyzed to make a reasonable conclusion, and if necessary, some unclear problems should be further studied. In addition to doing experiments on your own, you must pay attention to observation experiments, analyze experimental phenomena, think deeply, draw the proper conclusions, and try to create conditions to do more simple small things outside the class. experiment. In daily life, we must pay attention to observe various dry ice phenomena, and use the chemical knowledge we have learned to analyze and study. This is also a good way to integrate theory with practice and improve thinking ability.
Enrich knowledge and active thinking by doing experiments
Through chemical experiments on solid carbon dioxide dry ice, students can be trained to observe and operate the experiment, help us understand the concept of forming dry ice and deepen and consolidate the basic knowledge of dry ice, but also develop a practical and serious scientific attitude. Verifying the theory through experimental dry ice not only learns what is not learned in books but also enriches knowledge and broadens our horizons. This is great for activating our thinking and improving our scientific thinking ability. Only in this way can we make The knowledge of dry ice came to mind.
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