硫跟铁反应实验，按现行高中化学第一册和教参介绍的方法进行，会产生大量二氧化硫，严重污染教室内的空气，影响课堂气氛和师生健康。为了消除二氧化硫的污染，我对本实验进行了如下改进。1实验装置实验装置如附图。2实验方法1．取直径相差2cm左右的两个培养皿套在一起，在小 The sulfur-iron reaction experiment, conducted in accordance with the current method of the first high school chemistry and teaching methods, will produce a large amount of sulfur dioxide, which will seriously pollute the air in the classroom and affect the classroom atmosphere and the health of teachers and students. In order to eliminate the pollution of sulfur dioxide, I made the following improvements to this experiment. 1 experimental device Experimental device such as the drawings. 2 experimental methods Take two petri dishes that differ by about 2cm in diameter and put them together.