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熱脹冷縮

熱脹冷縮 . 常識科 二年級 下學期. 教學目標. 透過生活小故事,來教導學生物體受熱時會膨脹的特性。. 小丸子的一天. 有一天,小玉去到小丸子家玩耍. 她們玩得興高采烈時 …. 小玉肚餓了. 小丸子便去找媽媽. 小丸子:「媽媽有沒有東西吃 。 」. 媽媽說:「廚房的桌上有一瓶餅乾,妳自己拿來吃罷。」. 於是,小丸子和小玉便去廚房找那瓶餅了. 她們去到廚房便見到瓶餅了,但是 …. 瓶蓋蓋得太緊,用力也開不到. 小丸子便去找爺爺求救 …. 爺爺便教小丸子 :. 「把整個瓶蓋浸在熱水中一會兒 ……. 然後只要用少許力,便可以把瓶蓋打開了!! 」.

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熱脹冷縮

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