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科学 - 密度 & 酸与碱

Authored by Wong Esther

Science

1st - 12th Grade

Used 5+ times

科学 - 密度 & 酸与碱
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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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把三种物体放入水里,哪些物体会浮起来?

X

Y

X 和 Y

Y 和 Z

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

哪个物体会沉入水底?

Media Image
Media Image
Media Image
Media Image

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

根据这项实验,哪个物体的密度最大?

P

Q

R

S

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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哪项是物体密度依序从大到小排列?

水,油,铁

铁,水,油

铁,油,水

5.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

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如果要让鸡蛋浮起来,我们可以在水中加什么东西?

(答案超过1个)

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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在水中加盐后,沉在水底的小番茄浮起来了。你可以作出什么推断?

小番茄变重了

水的密度增加了

水的密度减少了

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

图里显示一张渔网,哪项说明是正确的?

浮球的密度小于水

坠子的密度小于水

浮球和坠子的密度一样

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