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二年级科学 混合物

Authored by Jasmine C

Science

2nd Grade

二年级科学 混合物
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39 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

以上用来分离混合物的方法是________。

漂浮法

用手

蒸发

用筛子

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以下哪些物质会溶解在水里?

Media Image
Media Image
Media Image
Media Image

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

物质的体积_______,溶解得更快。

越大

越小

中等

冷冻

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

将冰糖放入水中,下列哪一项不会加快冰糖溶解?

换成热水

用大块的冰糖

用小块的碎冰糖

用玻璃棒快速搅拌

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪一种混合物可以用筛子分离出来?

盐和水

黄豆和沙子

枯叶和石子

油和水

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪一种方式可以分离石子和橡皮筋?

筛子

磁铁

用手

蒸发

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪一组物质都能溶解于水?

芝麻、木屑

冰糖、蜂蜜

盐、石子

铁钉、面粉

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