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化学是一门以实验为基础的自然科学,在化学教学中,实验的作用是无可替代的。下面展示几个学生的家庭实验与同行们分享。实验1:固液常温型装置制取二氧化碳准备材料:两个相同的瓶子(最好是方形的)、AB胶、导管(可以拿药店买的止血带代替)、改锥、胶带、夹子。装置制作:(1)把一个瓶子的瓶口处(就是瓶子口类似漏斗的部位)剪下备用(两边都留下)。(2)把另一个瓶子的瓶底用螺丝刀扎数个小洞。(3)把刚才剪下的瓶口用AB胶倒粘在另一个瓶子
Chemistry is an experiment-based natural science. In chemistry teaching, the role of experiment is irreplaceable. The following shows a few students’ family experiments to share with their peers. Experiment 1: Preparation of Carbon Dioxide Preparation Material: Two identical bottles (preferably square), AB glue, catheter (can take the pharmacy to buy tourniquet instead), screwdriver, tape, clip. Device production: (1) the bottle at the mouth of a bottle (that is, the mouth of the bottle funnel-like parts) cut spare (left on both sides). (2) Take a few small holes in the bottom of a bottle with a screwdriver. (3) The bottle just cut off glue with AB glue in another bottle