摘要
利用减压抽滤装置的原理,对人教版初中教材(2012年)中的学生实验活动7和实验活动8使用到的过滤装置进行改进,装置更简单,实验效果明显,节约了过滤时间,符合一线课堂实验的需要.
According to the principle of vacuum filter,this paper improved the filtrating equipment for junior high school chemistry experiments in textbook published by People Education Press in 2012.This improved filtrating equipment was simple,with obvious effect and saved time,meeting the needs of experiment classroom teaching.
出处
《化学教育》
北大核心
2017年第11期-,共2页
Chinese Journal of Chemical Education
关键词
抽滤原理
过滤装置
装置改进
初中化学
principle of vacuum filtration
filtrating equipment
equipment improvement
junior high school chemistry
