
自然五上第四單元
Authored by 李政導 李政導
Chemistry
5th Grade
Used 12+ times

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50 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
小蘇打粉加入醋混合後所產生的氣體,可以使線香燃燒更旺盛。
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2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
將點燃的線香放入雙氧水和金針菇混合後產生氣體的瓶子中,線香會燃燒得更旺盛。
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3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
可以燃燒的物質,稱為助燃物。
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4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
將二氧化碳灌進氣球裡,能使氣球飄浮到天空中。
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5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
燭火可以在空氣中持續燃燒,是因為空氣中有氧。
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6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
發生森林大火時,消防員會砍倒部分樹木隔離火場,主要是去除燃燒三要件中的「可燃物」。
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7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
火災時利用乾粉滅火器滅火,是應用隔絕助燃物的原理。
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