
五下南一3-3生鏽與防鏽(選擇)
Quiz
•
Science
•
5th Grade
•
Practice Problem
•
Easy
縣立員林國小陳麗君(資) 縣立員林國小陳麗君(資)
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14 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
小美觀察腳踏車的生鏽情形,請問她不會看到哪一個部位生鏽?
鏈條
輪框
輪胎
車身
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
鐵製品生鏽會造成什麼影響?
完全沒有影響
質地變脆弱
外觀更閃閃發亮
使器具更堅固
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
為何將腳踏車的鏈條上油,就可以達到防鏽的功能?
可以隔絕空氣
因為油會吸收二氧化碳
可以增加空氣接觸面積
可以吸收更多水
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
迴紋針套上塑膠套或電鍍的主要目的是什麼?
使用方便
增加重量
減少鐵製品與空氣、水接觸
增加生鏽的機會
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小米想了解「乾燥與潮溼環境對鋼棉生鏽的影響」,請問哪一個步驟錯誤?
準備兩塊相同的鋼棉
一塊鋼棉沾水、一塊鋼棉沾醋
將兩塊鋼棉分別放入夾鏈袋中
靜置一段時間後,觀察鋼棉的變化
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
阿毛將兩塊相同的鋼棉一塊沾水、一塊沾酸性水溶液後,分別放入夾鏈袋中,一段時間後,再觀察鋼棉的變化。請問阿毛的實驗目的應該是什麼?
了解乾燥與潮溼環境對鋼棉生鏽的影響
了解鋼棉生鏽是否需要接觸空氣
了解水與酸性水溶液對鋼棉生鏽的影響
了解鋼棉生鏽時會產生哪一種氣體
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
心宜有一條漂亮的項鍊,她幾乎天天配戴在身上。某一天,心宜發現項鍊變成棕色,這可能是為什麼?
項鍊是銅製品,銅氧化後會呈黑色
項鍊是鐵製品,鐵氧化後會呈棕色
項鍊是銅製品,銅氧化後會呈棕色
項鍊是鋁製品,鋁氧化後會呈黑色
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