中学化学学习离不开化学实验,特别是对元素化合物知识的学习,物质的性质需要在实验中总结获取。学生对化学实验有浓厚的兴趣,实验能够培养学生的科学探究能力、创新能力、动手能力,通过做实验满足学生的好奇心,增强学生的求知欲,丰富学生的学习生活,促进学生全面发展。然而在中学课本上有些实验的实验效果并不太理想,主要体现在实验现象不明显或者得不到预期的实验现象,这对学生的学生产生了一定程度的干扰,因此怎样对实验进行改进,怎样使实验操 Chemistry study can not be separated from high school chemistry experiments, especially the study of the knowledge of elemental compounds, the nature of the material needs to be obtained in the experiment. Students have a keen interest in chemistry experiments. Experiments can cultivate students’ ability of scientific inquiry, innovation and practical ability. They can satisfy students’ curiosity by experimenting, enhance students’ curiosity, enrich students’ learning life and promote students’ all-round development. However, the experimental results of some experiments in secondary school textbooks are not very satisfactory, which is mainly reflected in the phenomenon that the experiment phenomenon is not obvious or can not get the expected experiment, which has a certain degree of interference to students. So how to improve the experiment, How to make experimental gymnastics