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化学是一门以实验为基础的自然科学,学习化学离不开实验。中学生喜欢化学,大部分原因是对化学实验感兴趣。化学实验越多,尤其是有趣的实验越多,学生对化学感兴趣的程度也就越高,如果在教学过程中适当地引入一些与教学内容、实际生活相关的趣味性实验,将会激发起学生的好奇心和求知欲,调动其学习的积极性,寓教于乐。一、过氯化钠与可乐1.实验用品Na_2O_2粉末、可乐,药匙、石棉网、脱脂棉。2.实验过程(1)用疏松的脱脂棉将约0.2 g Na_2O_2粉末包住,放
Chemistry is an experiment-based natural science, learning chemistry can not be separated from the experiment. Middle school students like chemistry, mostly because of their interest in chemistry. The more chemical experiments, especially the more interesting experiments, the higher the students are interested in chemistry. If the experiment is properly introduced with some interesting experiments related to teaching contents and real life, it will stimulate Students curiosity and curiosity, to mobilize their enthusiasm for learning, edutainment. First, sodium chloride and cola 1. Experimental supplies Na_2O_2 powder, cola, medicine spoon, asbestos net, absorbent cotton. 2. Experimental Procedure (1) Loose cotton wool will be about 0.2 g of powdered Na 2 O 2, put