化学是一门以实验为基础的学科,通过课堂演示实验或学生实验,可以使学生获得生动的感性知识,从而更好地理解、巩固所学化学知识,形成化学概念,促进观察、分析和解决问题等各方面能力的提高,并可激发学生的学习兴趣。 Chemistry is an experiment-based discipline that enables students to gain a vivid sensory knowledge through classroom demonstrations or student experiments to better understand and consolidate the chemistry they learn, form chemical concepts, and facilitate observation, analysis, and resolution Problems and other aspects of the ability to improve, and can stimulate student interest in learning.