
單元4 燃燒與生鏽:活動重點與準備
Flashcard
•
Chemistry
•
5th Grade
•
Practice Problem
•
Hard
Brandi Tang
FREE Resource
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10 questions
Show all answers
1.
FLASHCARD QUESTION
Front
圖中看到營火燃燒。要讓木材持續燃燒,下面哪一項是必要條件?
Back
充足氧氣與可燃物
2.
FLASHCARD QUESTION
Front
觀察圖中烤肉的場景,火焰在有更多藍色氣體靠近時變大。藍色氣體最可能代表哪一種氣體?
Back
氧氣,幫助燃燒的氣體
3.
FLASHCARD QUESTION
Front
看圖中的烤肉情境:有人用搧扇讓炭火更旺。這個行為主要提供了什麼條件,讓燃燒更充分?
Back
更多氧氣進入火焰
4.
FLASHCARD QUESTION
Front
觀察左圖的蠟燭被玻璃罩住,右圖蠟燭暴露在空氣中。哪一個推論最合理?
Back
罩住後氧氣減少,蠟燭會熄滅
5.
FLASHCARD QUESTION
Front
觀察圖片:上方蠟燭被玻璃杯覆蓋,下方蠟燭未覆蓋。此設計的操縱變因最可能是什麼?
Back
是否使用玻璃杯覆蓋蠟燭
6.
FLASHCARD QUESTION
Front
圖中同學提到空氣的組成。下列哪一項最接近空氣主要成分的描述?
Back
空氣主要是氮氣,其次是氧氣
7.
FLASHCARD QUESTION
Front
依照圖示的步驟,將漂白水倒入裝有細碎金針菇的廣口瓶並蓋上玻璃片後,為了檢測是否產生氧氣,下一步最合適的操作是什麼?
Back
把微微熄滅但仍紅熱的木條伸入瓶內
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