按教材上的实验步骤和方法开展测量锌与硫酸反应速率的实验,发现该实验存在一定的问题和不足,因此,对该实验进行了改进。改进后的实验装置简单、携带方便、操作方便、现象明显、反应时间短、药品用量少,反应速率适中、易于操控。改进后的实验装置和实验方法切实可行,完全满足课堂演示实验的要求,从而提高教学效率。 According to the experimental steps and methods of teaching materials to measure the reaction rate of zinc and sulfuric acid experiments found that the experiment there are some problems and deficiencies, therefore, the experiment was improved. The improved experimental device is simple, easy to carry, easy to operate, the phenomenon is obvious, the reaction time is short, less dosage, the reaction rate is moderate, easy to control. The improved experimental device and experimental method are feasible and fully meet the requirements of classroom demonstration experiments, so as to improve the teaching efficiency.