自然五下第二單元
Authored by 李政導 李政導
Chemistry
5th Grade
Used 15+ times
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70 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
食鹽水溶液裡的水分蒸發後，可以取回溶解在水裡的食鹽。
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2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小陽想取回溶解在水中的糖，可以利用酒精燈直接加熱糖水。
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3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
利用酒精燈加熱食鹽水溶液，水分蒸發的速度會比放在通風處自然蒸發的慢。
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4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將食鹽水溶液裡的水分蒸發後，可以取回溶解在水裡的食鹽。
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5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將食鹽水溶液裝在密閉的瓶子裡，一段時間後就能看到固體的食鹽。
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6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
奶粉是將生乳滅菌後，以噴霧乾燥法去除水分所製成的。
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7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
砂糖溶解在水中後，就無法再重新取回了。
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