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四年级 生锈(1)

Authored by pei shi

Science

4th - 6th Grade

Used 82+ times

四年级 生锈(1)
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

什么是生锈?

铁制品平滑的表面

铁制品表面白色的粉末

铁制品表面所分泌的液体

铁制品表面红褐色的物质

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下面哪种物品会生锈?

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3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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一个星期后,哪个试管里的回形针会生锈?

P

Q

R

S

4.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

下面哪些是导致铁制品生锈的原因?

灰尘

空气

汽油

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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从这项实验中,我们可以作出什么结论?

回形针在有空气和水的情况下就会生锈。

试管L、N和Q里的回形针的品质比较好,所以不会生锈。

木塞能防止回形针生锈。

沸水防止回形针生锈。

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

哪项有关生锈的说明是正确的?

铁制品生锈后,质量会减少。

所有金属制成品都不会生锈。

铁制品生锈后会变得不坚固和不耐用。

在缺乏水和空气的情况下,铁制品也会生锈。

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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哪项最有可能是Q物品?

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