现行小学自然教材中 ,六年级 (老六册 )和五年级 (新十册 )都安排有静电实验 ,由于这两册教材的静电实验都安排在上半年 ,春天多雨 ,空气潮湿 ,利用氖泡检验用毛皮摩擦过的橡胶棒是否带电的演示实验和分组实验时 ,自然教师普遍感到为难 ,实验现象总是不明显 ,甚至根本看不到氖 In the current primary school nature teaching materials, electrostatic experiments are arranged in the sixth grade (the sixth grade) and the fifth grade (the tenth grade). Since the electrostatic experiments of the two volumes of textbooks are arranged in the first half of the year, when the spring is wet and the air is wet, When testing whether the rubber rod rubbed with fur rubs on or not during demonstration experiments and grouping experiments, natural teachers generally feel embarrassed. The experimental phenomenon is always not obvious or even not visible at all