硫化氢是一种没有颜色而有臭鸡蛋气味的气体,有剧毒,做硫化氢气体性质实验时,易造成环境污染。为解决这个问题,笔者研制了“气体系列性质投影演示器”,应用于教学后,大大激发了学生学习化学的兴趣,收到了良好的教学效果,现介绍如下。一、装置构造见图1。二、制作材料用2mm厚度 Hydrogen sulfide is a kind of gas that has no color and smells of rotten eggs. It is highly toxic and can cause environmental pollution when it is used to test hydrogen sulfide gas properties. In order to solve this problem, the author developed the “Projection Demonstrator for Gas Series”. After it was applied to teaching, it greatly stimulated students’ interest in learning chemistry and received good teaching results. Now it is introduced as follows. First, the device structure shown in Figure 1. Second, the production of materials with 2mm thickness