论文部分内容阅读
教材分析:“水到哪里去了”是冀教版四年级科学下册第二单元“物质的状态”中的一课。本课主要内容是研究水的蒸发现象,由三部分组成,一是日常生活中看到的蒸发现象;二是什么是蒸发;三是影响蒸发快慢的因素。
Textbook analysis: “where the water went ” is the fourth unit of Ji Pei Ji Volume two of the second unit “material status ” in a lesson. The main content of this course is to study the phenomenon of water evaporation, which consists of three parts, one is the evaporation phenomenon seen in daily life; the other is evaporation; and the third is the factors that affect the evaporation speed.