關於鹽水沈浮的小實驗 - 幼教
By Leila
at 2006-10-10T13:09
at 2006-10-10T13:09
Table of Contents
各位資深的老師,你們知道有哪些關於鹽水裡物品會浮起來的實驗嗎?
(跟淡水比起來)
請幫個忙~
已經找到關於蛋的
大概還需要2~3個
請集思廣益,幫幫忙吧
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