三年级科学密度
Quiz
•
Science
•
3rd Grade
•
Practice Problem
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Medium
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 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
30 sec • 1 pt
什么物质可以改变水的密度？
油
沙
盐
墨汁
3.
MULTIPLE CHOICE QUESTION
30 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
30 sec • 1 pt
把水、油和洗衣液倒入玻璃杯里，哪项观察结果是正确的？
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
请问橡胶球会沉在水里还是浮在水里？
沉
浮
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
请问木块和铁块哪个会浮在水面上？
铁块
木块
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
铁钉和木塞，哪个的密度大过水？
铁钉
木塞
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