三年级科学单元七（密度）
Authored by LEE LING LAU
Science
3rd Grade
Used 4+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
如何可以使沉在水底的小番茄浮起来？
改变水的密度
用其他容器装水
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
什么物质可以改变水的密度？
油
沙
盐
墨汁
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
密度大于水的物体是____的，密度小于水的物体则是____的。
沉，浮
浮，沉
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
请问橡胶球会沉在水里还是浮在水里？
沉
浮
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
请问木块和铁块哪个会浮在水面上？
铁块
木块
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
请选出正确的答案。
浮
沉
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
请选出正确的答案。
浮
沉
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