五下2-1
Quiz
•
Science
•
5th Grade
•
Easy
Kenny Hsieh
Used 46+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
藉由熬煮甘蔗汁蒸發水分後,可以取得粗鹽。
O
X
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
食鹽水溶液放在通風且陽光直射處,可以使食鹽水溶液中的水分蒸發,取得食鹽顆粒。
O
X
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
糖溶解在水中後,可以透過將水分蒸發掉的方式,重新取回溶解在水中的糖。
O
X
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
所有物質都能溶解在水中,且放在通風處,都可以再取回。
O
X
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
加熱食鹽水溶液,水分蒸發的速度會比自然蒸發的方式快。
O
X
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
阿德將一杯嘗起來鹹鹹的水溶液放在太陽底下,等水分完全蒸發後,發現杯中有一層白色物質,這白色物質可能是什麼?
食鹽
方糖
砂糖
以上皆可能
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小由將等量的食鹽水溶液,分別利用酒精燈加熱和放在太陽底下,等水完全蒸發後,哪一個方法所得到的食鹽顆粒會比較小?
自然蒸發
利用酒精燈加熱
一樣小
不一定
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