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把蠟燭放在盛了水的盤子中央，... - Tung Chung Education 東 ...

小實驗分享：把蠟燭放在盛了水的盤子中央，燃點後用透明杯子蓋住，觀察蠟燭和水位 ... 燃燒需要燃料、氧氣和溫度，當杯中的氧氣耗盡蠟燭便會熄滅； 2.

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