2个趣味实验在初中化学教学中的应用

Application of Two Interesting Experiments in Junior High School Chemistry Teaching

根据双氧水催化分解制取氧气设计了助燃的'奶昔'实验,利用铝与硫酸铜的置换反应设计了微型铜树实验,2个实验操作简单、安全,现象奇特。学生产生了强烈的学习动机,达到了较好的教学效果。

This paper designed combustion-supporting"milk shake"experiment based on the preparation of oxygen by catalytic decomposition of hydrogen peroxide,and micro copper tree experiment based on the replacement reaction between aluminum and cupric sulfate.This two demonstration experiments were simple,safe and with peculiar phenomena.Students had a strong motivation to learn,and achieved a better teaching effect.