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5年級自然期末複習

Authored by 鄭仲宏 鄭仲宏

Science

1st - 5th Grade

Used 4+ times

5年級自然期末複習
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47 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

所有的物質加入水中,攪拌後都會溶解、消失。

yes

no

2.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

醋、食鹽、小蘇打粉等物質溶於水中所形成的水溶液,都容易導電。

yes

no

3.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

進行酸鹼中和實驗時,若不小心讓手沾到強鹼水溶液,應立刻用強酸水溶液清洗,以免傷害 皮膚。

yes

no

4.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

進行水溶液的酸鹼檢驗後,使用過的石蕊試紙可以重複使用,下次再檢測其他的水溶液。

yes

no

5.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

食鹽水是中性水溶液,所以滴在紅、藍色石蕊試紙上都不會變色。

yes

no

6.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

胃酸過多的人,可以飲用醋來減緩不適,這是酸和鹼互相作用的應用。

yes

no

7.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

將紫色高麗菜汁滴入不知名的水溶液中,水溶液呈現偏藍綠色,則可推測水溶液為鹼性。

yes

no

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