
二年级科学 混合物
Authored by Lee Xian
Science
2nd Grade
Used 1+ times

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100 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
以下哪个图不是混合物?
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
什么是混合物?
把两种物体分开
由两种至多种不同的东西混合而成的物体
一定要用水把两种物体混合起来
能让电流通过
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
以下哪个方法不能把混合物分开?
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
以下哪个方法能最快把铁钉和面粉分离?
用手
用筛子
过滤
用磁铁
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
以下哪个方法能分离大小物质不同的混合物?
蒸发
漂浮法
用筛子
用磁铁
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
盐水要用哪个方法才能把盐和水分离?
蒸发
用水
用筛子
用磁铁
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
如何把会溶解和不会溶解的混合物分开,如:胡椒粉和水?
用手
用滤纸
用磁铁
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