
五上U3
Authored by 王岑娜 王岑娜
Chemistry
5th Grade
Used 2+ times

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14 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
將泡過醋的鋼絲絨球固定在廣口瓶底,再將廣口瓶垂直倒放在裝有藍色水的透明淺盤中,20分鐘後,廣口瓶內的水位有什麼變化?
水位高度不變
水位變低
水完全乾涸
水位升高
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列常見的生活用品中,哪一項是利用製作合金的方式來防鏽?
不鏽鋼餐具
鑰匙
迴紋針
鐵晒衣架
3.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
空氣中因為具有哪一種氣體,所以容易使鐵生鏽?
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
讓鋼絲絨球在密封的瓶子內生鏽一段時間,然後將燃燒的線香伸進瓶中,線香會產生什麼變化?
燃燒更旺盛
立即熄滅
沒有變化
線香也生鏽了
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列哪一種保存鐵製品的方式,最容易讓鐵製品生鏽?
放進乾燥箱裡
放在浴室中
將鐵製品塗上油漆
放在塑膠袋裡
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
只有鐵才會生鏽,其他金屬都不會生鏽。
O
X
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
在鐵製品上塗抹酸性水溶液,可以防止鐵生鏽。
O
X
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