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112下自4

Authored by 張森貴 張森貴

Science

3rd Grade

Used 2+ times

112下自4
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25 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

當紫色高麗菜汁遇到酸鹼性質不同的水溶液時,會有不同的顏色變化。

O
X

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

在辨認未知粉末的時候,不可以隨意將粉末放入嘴裡,以免發生危險。

O
X

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

製作紫色高麗菜汁時,應該要使用純水來製作。

O
X

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

如果發現物質加入水中後不會溶解,只要一直攪拌,最後就一定會溶解。

O
X

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

黑胡椒在冷水中不能溶解,但是只要放入熱水中就會溶解了。

O
X

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

攪拌會增加物質可以溶解的量,因此攪拌久一點,就可以讓黑胡椒溶解在水中。

O
X

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

實驗時,加入第4平匙的砂糖攪拌後,發現杯底有砂糖沉澱,表示第4平匙的砂糖無法完全溶解。

O
X

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