錢幣抑制孑孓,全國科展冠軍 - 魚
By Dorothy
at 2011-07-31T04:03
at 2011-07-31T04:03
Table of Contents
http://tw.news.yahoo.com/article/url/d/a/110730/11/2w04g.html
夏天到來,登革熱讓民眾好頭痛,防制孑孓滋生,有新妙招,高雄七賢國小小學生,從許
願池裡激發靈感,在300西西的水放四枚一元硬幣,利用金屬在水中,會溶出微量的金屬
離子,殺死微生物和孑孓,而這也讓他們在全國中小學科學展覽會中,脫穎而出拿下冠軍
。
重點只有第一段,故節錄,
詳全文請點新聞連結喔!
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以前只知道錢幣可以殺蝦跟螺,沒想到還可以殺孑孓!
以後外面的露天蓮花缸也可以考慮放錢幣防止孑孓孳生XD
不知道對魚隻有沒有傷害就是了...
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