许多版本教材中都编排有风的形成模拟实验,我们对它作了改进,用身边容易找到的材料,可以让每个实验小组的学生都能动一动手,经历一下实验的过程,感悟一下风的存在。材料:1.5升塑料空瓶、玻璃管、蜡烛、线香、小夹子、狭长的纸条、火柴等(如图1、2)。制作方法:1.用刻刀将1.5升塑 Many versions of textbooks are arranged wind simulation formation experiment, we made improvements to it, with easy to find around the material, so that each experimental group of students can move hands and go through the experimental process, the perception of the wind exist. Material: 1.5L plastic empty bottles, glass tubes, candles, incense sticks, small clips, long strips of paper, matches, etc. (Figure 1,2). Production methods: 1. 1.5 liters with a plastic knife