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本节内容与日常生活有密切联系。空气看不见摸不着,虽然我们生活在大气中,但气体压强的存在容易被学生忽视,且较为抽象,因此本节课可指导学生利用身边随手易得的物品开展实验探究,让学生体验大气压强的存在,让他们在轻松、自主的氛围中,享受创造的快乐,体验成功的喜悦,领略大气压的神奇。一、教具准备教师演示用品:矿泉水瓶、易拉罐、酒精灯、火柴、试管夹、橡皮泥、锥形瓶、鸡蛋、马德堡半球。学生实验用品:玻璃杯、硬纸片、刻度尺、注
This section is closely related to daily life. The air is invisible. Although we live in the atmosphere, the existence of gas pressure is easily overlooked by students and it is more abstract. Therefore, this lesson can guide students to use the easily accessible items to carry out experimental exploration and allow students to experience atmospheric pressure. Their existence allows them to enjoy the happiness of creation in a relaxed and autonomous atmosphere, experience the joy of success, and appreciate the magic of atmospheric pressure. First, teaching aids for teachers Demonstration supplies: mineral water bottles, cans, alcohol lamps, matches, test tube clips, plasticine, conical flasks, eggs, Domberg hemisphere. Student Lab Supplies: Glass, Hard Paper, Scale, Note