化学是一门以实验为基础的学科,通过实验不仅能够激发学生学习化学的积极性和主动性,还能帮助学生理解和掌握化学基础知识与技能,有利于提高学生的科学素养,有利于培养学生的观察能力和实事求是的科学态度~([1-2])。中学化学实验大多涉及能量、状态、颜色的变化,其中,颜色变化是学生最容易观察到的实验现象,最能给学生带来视觉冲击。教师教学过程中穿插的一些颜色变化较明显的趣味性实验能有效激发学生的学习 Chemistry is an experiment-based discipline, not only can stimulate students to learn chemistry initiative and initiative, but also to help students understand and master the basic knowledge of chemistry and skills, is conducive to improving students’ scientific literacy, help to train students Observation ability and realistic scientific attitude ~ ([1-2]). High school chemistry experiments mostly involve changes in energy, state, and color. Among them, the color change is the most easily observed experimental phenomenon for students and the visual impact most can be brought to the students. In the process of teaching, interspersed some of the more interesting changes in color can effectively stimulate students’ learning