112康軒5上自然Ch3
Quiz
•
Science
•
5th Grade
•
Practice Problem
•
Medium
張仁彥 張仁彥
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60 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
氧氣是燃燒三要素中的可燃物。
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
空氣的組成有超過一半以上是氮氣。
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
接觸空氣的鐵製品,比沒有接觸空氣的鐵製品容易生鏽。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
鋼絲絨球在生鏽前後,外觀都沒有變化。
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在鐵生鏽的實驗中,浸泡過酸性水溶液的鋼絲絨球的生鏽速度,比浸泡過清水的鋼絲絨球快。
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
用金針菇和雙氧水製造氧氣時,使用剪碎的新鮮金針菇,比用整把金針菇的效果好。
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
因為電線走火容易引起火災,所以老舊的電線要盡快更換。
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