化学是一门以实验为基础的学科,新课改要求在激趣乐究的情况下完成学习。压强是一个物理概念,根据克拉伯龙方程:pv=nrt,推出p=(nrt)/v(r为常数)[1]。要使p变化,可改变n、t、v中的一个变量。通过物理溶解,化学反应或化学溶解;改变气体的温度,或产生气体的方法从而改变压力形成足够的压强差(负压)。进而引发初中化学实验中的喷泉实验、水往高处流,瓶吞鸡蛋等趣味实验,激发学生兴趣,培养探究能力。从而让学生轻松掌握检查装置的气密性,防止倒吸,理解气体的溶解度,现将与气体压强有关的趣味实验归纳与整合如下 Chemistry is an experiment-based discipline, the new curriculum reform requires learning in the case of fun music. Pressure is a physical concept, derived p = (nrt) / v (r is a constant) [1] according to the Kabelon equation: pv = nrt. To change p, change one of n, t, v. By physically dissolving, chemically reacting or chemically dissolving; changing the temperature of the gas, or creating a gas, the pressure is changed to create a sufficient pressure differential (negative pressure). And then trigger junior high school chemistry experiments in the fountain experiment, the water flow to the top, swallow eggs and other interesting experiments to stimulate student interest and develop the ability to explore. So that students can easily master the airtightness of the inspection device to prevent the suction down, understand the solubility of gas, gas pressure will now be related to the fun experiment summarized and integrated as follows