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自然五下第二單元

Authored by 李政導 李政導

Chemistry

5th Grade

Used 15+ times

自然五下第二單元
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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。

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。

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。

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。

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。

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。

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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