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108課綱 自然 5上 第三單元 水溶液

Authored by Yu Chang

Science

5th Grade

Used 15+ times

108課綱 自然 5上 第三單元 水溶液
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99 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

酸性水溶液會使紅色石蕊試紙變藍色。

O

X

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

利用眼睛觀察水溶液,就可以辨別出酸鹼性。

O

X

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

物質溶解於水,成為水溶液後,就無法使溶質和溶劑分離了。

O

X

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

利用水加熱會蒸發的原理,可以取回食鹽水溶液中的食鹽。

O

X

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

在 100 毫升的水中加入 20 公克的食鹽,攪拌後食鹽不見了,此時我們會發現水位沒有變化。

O

X

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

如果水溶液能讓藍色石蕊試紙變紅,那麼它一定是酸性水溶液。

O

X

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

將 LED 燈與電線、電池連接,再接上醋,打開開關後,會發現 LED 燈亮了,得知醋具有導電性質。

O

X

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