
自然8上2-1~2-2
Authored by 霍 建豪
Chemistry
8th Grade
Used 3+ times

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24 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
判斷下列現象是屬於物理變化還是化學變化?(1)冰塊融化成水: 物理變化 (2)鐵生鏽: 化學變化(3)水蒸氣凝結成水滴: 物理變化 (4)糖溶解在水中: 物理變化
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2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者是水在常溫下的特性?
具有一定體積及形狀
沒有一定體積及形狀
具有一定體積,但沒有固定形狀
具有一定形狀,但沒有固定體積
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
溼衣服逐漸晾乾的過程,是屬於下列哪一種現象?
沸騰
蒸發
熔化
凝結
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
請問下列氣體中,何者為混合物?
空氣
氮氣
氧氣
二氧化碳
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
打鐵師傅將燒紅的鐵塊放入冷水中時,會發出「ㄘ」的聲音,同時也會產生許多白煙,試問這些白煙是屬於下列哪一種物質?
固態鐵
小水滴
氣態鐵
液態鐵
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(戊)固態碘。
甲乙
丙丁
乙戊
丁戊
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
純物質與混合物的主要區別為何?
前者有一定的質量,後者沒有一定的質量
前者有一定的形狀,後者沒有一定的形狀
前者有特定的顏色,後者沒有特定的顏色
前者具有一定的性質,後者沒有一定的性質
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