今天,我和几位同学到刘老师家去玩。刘老师兴致勃勃地对我们说:“我做个小小的实验给你们看看,怎么样?”我们一听做实验,可高兴了,都说:“好!好!好!”实验开始了,刘老师拿出一个小小的盆子,倒上一些醋,然后放在酒精灯上加热。不一会儿,醋慢慢地冒出一缕缕的白气,然后又冒出了许多小泡泡。又过了一会儿,盆子上方蒸气迷漫,一股浓浓的醋味扑面而来。小泡泡渐渐变成了大泡泡,醋沸腾起来了。我们看着那翻滚的醋水.不知道刘老师下一步要做什么。谁知刘老师突然问我们:“你们谁敢把手指放到醋里去?” Today, I and several classmates to Liu home to play. Liu said with great interest to us: “I was a little experiment for you to see, how?” We are happy to do experiments, and said: “Good! Good! Good!” The experiment started , Liu took out a small pot, poured some vinegar, and then placed on the alcohol lamp heating. In a moment, the vinegar slowly blew in a stream of white gas, and then many small bubbles emerged. After a while, the steam above the basin was amusing, with a thick vinegar smelling of it. Small bubbles gradually become a big bubble, vinegar boiling up. We looked at the rolling vinegar water. Do not know what to do next step teacher Liu. Who knows Liu suddenly asked us: “Who dare you put your fingers into the vinegar to go?”