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五年级科学 第七课生锈

Authored by ANG Moe

Science

2nd - 4th Grade

Used 9+ times

五年级科学 第七课生锈
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

生锈会对物品带来什么影响?

生锈物品表面会变亮

生锈物品价格会提高

生锈物品的重量会变轻

生锈物品会变得脆弱

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

下图显示一项实验。预测铁钉一星期后的变化。

铁钉会融化

铁钉会增长

铁钉会弯曲

铁定表面会出现红褐色物质

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

是什么因素导致铁制品生锈?

Ⅰ和Ⅱ

Ⅰ和Ⅳ

Ⅱ和Ⅲ

Ⅱ和Ⅳ

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以下哪项是防止铁钉生锈的最佳方法?

涂上一层漆

涂上一层盐水

涂上一层消毒水

涂上一层洗涤剂

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

下图显示一样生锈的物品。哪种方法能最有效的防止以上物品生锈?

油漆

包裹塑料

镀不锈金属

涂清洁剂

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪项物品不会生锈?

Media Image
Media Image
Media Image
Media Image

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

被放置在以下哪个地方的自行车最容易生锈?

客厅

院子

海边

马路旁

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