化学实验也是化学教学的基础,是教师和学生学习化学知识、技能的重要的方法。演示实验,是教师通过实际的实验演示,引起学生观察、思维,从而认识物质的性质及变化规律的一种教学方法。精心设计合理布局的演示实验具有高度的艺术性,是化学教学艺术的重要组成部分 Chemistry experiments are also the basis of chemistry teaching, an important way for teachers and students to learn chemistry knowledge and skills. Demonstration experiment is a kind of teaching method that teachers can recognize and observe the nature and change rule of students through actual experimental demonstration, causing students to observe and think. Well-designed and reasonably designed demonstration experiments are highly artistic and are an important part of chemistry teaching art