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水溶液

Authored by 沈學謙 沈學謙

Science

5th Grade

Used 12+ times

水溶液
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17 questions

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1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

活動一:各種水溶液,是用哪些方式去測試或觀察呢?(可複選)

眼睛看

搧風用鼻子聞

嘴巴喝

石蕊試紙

燈泡亮了

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

下列何者屬於物理性質(可複選)

顏色

氣味

酸鹼性

導電性

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪種物質不能在水中溶解?

砂糖

食鹽

沙子

小蘇打粉

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

如何利用其他水溶液去分辨小蘇打水和食鹽水?(不能用喝的)

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

除了石蕊試紙以外,還有什麼東西可以判斷水溶液的酸鹼性?

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

在做石蕊試紙測酸鹼的實驗時,哪些步驟錯誤?

用鑷子夾取石蕊試紙

用棉花棒沾粉塗抹

觀察紅、藍色石蕊試紙顏色變化

每種水溶液都要做紅、藍色才能確認

7.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

上課時提到的石蕊試紙變色情形3,水溶液可能是什麼性?

酸性

中性

鹼性

以上皆是

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