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开展探究微型实验微型实验是近20年发展较快的一种新的化学实验。微型实验节约药品、节约时间、操作安全、污染少,学生可以自己动手制作仪器,自行实验,在对学生进行“绿色化学”的渗透教学中具有不可忽视的作用。如:H2的爆炸实验。取一个乳酸菌饮料瓶,用饮料管在瓶的封口处刺一小孔,用剪刀在瓶身的凹位处把瓶剪为两部分。(注意:上半部分把凹位全部剪去,而下半部分留有一些凹位,这样上半部分才能较严实地盖在下半部分上,使H2不致太快散失,保证实验的顺利成
Inquire into micro experiment The micro experiment is a new chemical experiment that has developed rapidly in the past 20 years. Miniature experiments save drugs, save time, operate safely, and reduce pollution. Students can make their own hands-on instruments and experiment on their own. They have a non-negligible role in students’ “green chemistry” infiltration teaching. Such as: H2 explosion experiment. Take a lactic acid bacteria beverage bottle, use the beverage tube to pierce a small hole in the seal of the bottle, and use scissors to cut the bottle into two parts at the concave position of the bottle body. (Note: The upper part cuts all the recesses, while the lower part has some recesses, so that the upper part can cover the lower part more tightly, so that H2 will not dissipate too quickly, guaranteeing the successful completion of the experiment.