教室内外空气质量一样吗

• 作 者: 董鹏 杨浦嘉
• 机 构: 深州市第一中学,
• 出 处: 农村青少年科学探究
• 发表日期: 2008年02期
• 关键词: 空气质量 澄清石灰水 室外空气 设计方案 胶塞 酒精棉球 后衬 塞紧 电子邮箱 深吸气

一、提出问题上课时教室内外空气质量一样吗?二、作出假设上课时教室外空气质量要好于教室内的空气质量。三、设计方案1.实验原理教室内外(尤其是冬天门窗紧闭)空气质量有很大差别,这可以通过“二氧化碳能使澄清石灰水变混浊”来验证。

I. Ask Questions Do you have the same air quality inside or outside the classroom during class? Second, make the assumption that the air quality outside the classroom is better than the air quality inside the classroom. Third, the design program 1. Experimental principle Inside and outside the classroom (especially the winter doors and windows are closed) The air quality is very different, which can be verified by “carbon dioxide can make lime water turbidity ”.