化学实验具有其独特的生动性、直观性,它是化学科学探究的主要方式,在中学化学教学中具有独特魅力。因此,教师常常在课堂上引入更多实验,甚至掺杂一些课外兴趣实验来调动学生积极性。可不少实验存在一定危险性:比如易燃、易爆、腐蚀性、毒性等问题。为了不丧失学生学习化学的兴趣,教师应尽量选择安全性好、毒性低、不易造成人身伤害事故的化学实验。即便这样老师也不能掉以轻心,仍要加强对学生实验的安全教育。 Chemical experiment has its unique vividness and intuition. It is the main method of chemical science exploration and has unique charm in chemistry teaching in middle school. Therefore, teachers often introduce more experiments in the classroom, and even do some extracurricular interest experiments to motivate students’ enthusiasm. A lot of experiments can have certain risks: such as flammable, explosive, corrosive, toxic and other issues. In order not to lose students’ interest in learning chemistry, teachers should try to choose chemical experiments that are safe, have low toxicity, and are not likely to cause personal injury accidents. Even if such a teacher can not take it lightly, it is still necessary to strengthen safety education for student experiments.