
111康軒5下自然2
Authored by 張仁彥 張仁彥
Science
5th Grade
Used 19+ times

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60 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
假如鐵製品生鏽了,用水沖一沖就會光亮如新。
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2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在鐵生鏽的實驗中,浸泡過酸性水溶液的鋼絲絨球的生鏽速度,比浸泡過清水的鋼絲絨球快。
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3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
鋼絲絨球在生鏽前後,外觀都沒有變化。
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4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
空氣中的二氧化碳無法幫助生物呼吸,所以我們不需要二氧化碳。
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5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
「蠟燭、氧氣、點火」是蠟燭燃燒的三個條件,只要缺少其中一個條件,蠟燭就無法燃燒。
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6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
打開汽水瓶蓋時,會有氣體衝出來,那是溶解在汽水中的氧氣。
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7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
空氣中有氧氣,所以蠟燭可以在空氣中燃燒。
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