大气,看不见,摸不着,我们不能直接地观察到大气压强。教材中介绍了马德堡半球实验,橡皮碗摸拟马德堡半球实验,覆杯实验及瓶子吞鸡蛋等实验,这些实验能从不同的角度证明大气压的存在。为了更好的说明大气压的存在,我再介绍两个方便易做的小实验:①烧瓶吞鹌醇蛋,上课前取长颈烧瓶一个和煮熟剥好壳的鹌醇蛋一个,将烧瓶内装半瓶热水,演示时,倒掉热水,用 Atmosphere, invisible, intangible, we cannot directly observe atmospheric pressure. The teaching materials include the experiments of the Heidelberg hemisphere, rubber bowls and simulations of the Hedeberg hemisphere experiment, the cupping experiment and bottle swallowing eggs. These experiments can prove the existence of atmospheric pressure from different angles. In order to better illustrate the existence of atmospheric pressure, I will introduce two convenient and easy experiments: 1 Flask swallow mellow eggs, take a flask and cooked a shell of sterol eggs before class, put the flask inside Half a bottle of hot water, demo, drain hot water, use