國小五年級下學期自然4-1
Quiz
•
Science
•
5th Grade
•
Practice Problem
•
Hard
楊 采寧
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7 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列哪一個物品不會出現生鏽的情形?
鐵製烤肉架
塑膠杯
鐵製水溝蓋
鐵製螺絲
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列有三個鋼棉:泡在自來水裡的甲鋼棉、泡在油裡的乙鋼棉、泡在醋裡的丙鋼棉。在其他條件相同下,這三個鋼棉的生鏽速度由快到慢依序是
甲>乙>丙
甲>丙>乙
丙>乙>甲
丙>甲>乙
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列哪一種方法,無法減緩鐵製品生鏽?
電鍍
製成合金
漆油漆
泡食鹽水
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
恰恰進行「鋼棉生鏽」實驗,假設「接觸的水溶液」會影響鋼棉生鏽,接觸 A 水溶液的鋼棉生鏽速度,比接觸 B 水溶液的鋼棉快。回答下列問題:
(1)下列哪一個因素不是 控制變因 ?
鋼棉大小
水溶液種類
接觸空氣量的多寡
夾鏈袋的大小
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
恰恰進行「鋼棉生鏽」實驗,假設「接觸的水溶液」會影響鋼棉生鏽,接觸 A 水溶液的鋼棉生鏽速度,比接觸 B 水溶液的鋼棉快。回答下列問題:
(2)下列哪一個因素是 操作變因 ?
接觸空氣量的多寡
鋼棉生鏽速度的快慢
水溶液種類
鋼棉大小
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
恰恰進行「鋼棉生鏽」實驗,假設「接觸的水溶液」會影響鋼棉生鏽,接觸 A 水溶液的鋼棉生鏽速度,比接觸 B 水溶液的鋼棉快。回答下列問題:
(3) A、B 水溶液可能是下列哪一個組合?
A 是自來水,B 是白醋
A 是白醋,B 是自來水
A 是純水,B 是食鹽水
A 是蒸餾水,B 是鹽酸
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
1. 下列關於鐵製品生鏽的敘述,正確的打 V:
鐵製品在生鏽的過程中,會消耗掉氧氣。
鐵製品生鏽後,會產生褐色的斑點。
鐵製品生鏽後,會變得光滑明亮。
鐵製品生鏽後,摸起來會感覺粗粗的。
鐵製品生鏽,是一種可以恢復的變化。
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