钠跟水的反应是高一和大一化学实验的重要内容。旧版高中教材中，收集和检验氢气操作繁琐，新版教材虽对其进行了改进，简便了操作，但笔者仍以为该实验缺乏直观性：其一是塑料瓶缺乏透明度，其二为了检验气体需用细目的塑料瓶，这样不便于学生观察钠与水反应的过程，难于描述 The reaction of sodium and water is an important part of freshman and freshman chemistry experiments. The old version of high school teaching materials, collecting and testing hydrogen cumbersome operation, although the new version of the textbook to improve it, easy operation, but I still think that the lack of an intuitive experiment: one is the lack of transparency plastic bottles, and second, in order to test the gas needs Details of plastic bottles, so not easy for students to observe the reaction of sodium and water process, difficult to describe