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二年级科学混合物

Authored by CHEW Moe

Science

1st Grade - University

Used 6+ times

二年级科学混合物
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14 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

哪些工具能把面粉从花生和枯叶中分开?

使用磁铁

使用筛子

使用过滤纸

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

回形针、玻璃弹子及面粉在同一个盘子里。哪些方法可以把回形针分开?

用手

使用磁铁

使用漂浮法

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

选出能够让枯叶、石头、树枝分离的方法

漂浮法

用筛子

用蒸发

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

把盐水放在太阳底下晒干,就能够得到盐粒。以上使用了哪些分离混合物的方法

蒸发

用手

漂浮法

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

咖啡粉和水混合在一起,用哪些方法可以把咖啡粉分出来?

用磁铁

漂浮法

用滤纸

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

哪种物质能溶解在水里?

面粉

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

哪种物质不能溶解在水里?

盐、沙、炼乳

芝麻、胡椒粉、茶叶

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