四上6 空氣與生活
Quiz
•
Life Project
•
4th Grade
•
Practice Problem
•
Medium
G.S. Group
Used 11+ times
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15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 7 pts
空氣中最多的氣體是什麼?
二氧化碳
氧氣
氮氣
氦氣
2.
MULTIPLE CHOICE QUESTION
15 mins • 7 pts
空氣中氧氣的比例約佔多少?
21%
30%
15%
50%
3.
MULTIPLE CHOICE QUESTION
15 mins • 7 pts
燃燒需要哪種氣體?
氮氣
氧氣
氦氣
二氧化碳
4.
MULTIPLE CHOICE QUESTION
15 mins • 7 pts
如果把燃燒中的物質和氧分隔開會發生什麼?
燃燒會加速進行。
燃燒將停止。
氧氣會被消耗殆盡。
物質會變得更加穩定。
5.
MULTIPLE CHOICE QUESTION
15 mins • 7 pts
滅火筒的原理是什麼?
滅火筒使用水來滅火。
滅火筒通過加熱來釋放滅火劑。
滅火筒只能在室外使用。
滅火筒通過釋放壓縮氣體噴出滅火劑來滅火。
6.
MULTIPLE CHOICE QUESTION
15 mins • 7 pts
燃燒需要哪些三個要素?
可燃物、氧氣、熱量
可燃物、氮氣、冷卻
水、二氧化碳、壓力
熱量、氧氣、金屬
7.
MULTIPLE CHOICE QUESTION
15 mins • 7 pts
鐵在什麼環境下會生鏽?
高溫環境
無氧環境
乾燥環境
潮濕環境
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