
0417燃燒與生鏽
Authored by 許晏斌 許晏斌
Science
5th Grade
Used 13+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
用火點燃線香,線香可以燃燒的原因是什麼?
空氣中有氧氣
空氣中有二氧化碳
空氣可以被壓縮
空氣占有空間
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
用廣口瓶逐漸往下罩住燃燒中的蠟燭,燭火會漸漸熄滅的原因是什麼?
蠟燭太短
廣口瓶裂開了
瓶中已經沒有幫助燃燒的氣體
廣口瓶內有風
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
進行製造氧氣實驗時,使用金針菇的目的是什麼?
幫氧氣染色,使我們看的見氧氣
加速雙氧水產生氧氣
幫我們從空氣中抽出氧氣
用來檢驗製造出來的氣體是不是氧氣
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將雙氧水倒進裝有金針菇的廣口瓶中,會有什麼現象發生?
起火燃燒
金針菇會發芽
金針菇會溶解
產生大量的氣泡
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一種物品可以用來檢驗瓶中是否有氧氣存在?
用混濁的石灰水來檢驗
用澄清石灰水來檢驗
用小蘇打粉來檢驗
用點燃的線香來檢驗
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列關於氧氣特性或用途的敘述,哪一項是不正確的?
氧氣是生物維持生命所必需的氣體
氧氣是助燃物
呼吸困難時,氧氣隨身瓶可以舒緩不適
氧氣是淡灰色、無味的氣體
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
製造氧氣時,為什麼要在廣口瓶的瓶口蓋上透明板呢?
使反應速度快一點
防止灰塵掉落
防止氣體散逸
防止溫度降低
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