下面我们再看,如果过滤后的水仍然有颜色怎么办?生:活性炭吸附。师:这是家用净水机的滤芯,里面黑色的部分都是活性炭,还有家用电冰箱中的除臭剂也是用的活性炭,下面我们用实验检验一下活性炭能否把色素和异味去掉。操作要求:将水样3倒入装有活性炭的U形管的一端,观察对比另一端的现象并完成学案内容。 Let’s look at the following, if the filtered water is still color how to do? Health: activated carbon adsorption. Teacher: This is a household water purifier filter, which is black part of the activated carbon, as well as household deodorant decontamination is also used activated carbon, below we use the experiment to test whether the activated carbon pigment and odor removed. Operational requirements: The water sample 3 into the end of the U-shaped activated carbon tube, observe the other end of the phenomenon and complete the case content.