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四年级科学常识

Authored by TAN Moe

Science

4th Grade

Used 9+ times

四年级科学常识
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25 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

什么是透明体?

能让电流通过的物体

能让光线透过的物体

能导热的物体

能导电的物体

2.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

当光线照射在不透明体时,所形成的影子是。。。

清晰的

模糊的

非常模糊的

没有影子

3.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

光离物体越近时,所形成的影子越

没有改变

变形

4.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

以下的用具应用了光的反射原理,除了

Media Image
Media Image
Media Image
Media Image

5.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

运用视觉、嗅觉、触觉、听觉和味觉来了解事物。

分类

观察

预测

沟通

6.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Media Image

预测两个星期后蚱蜢的生长情况。

蚱蜢死了

蚱蜢的体型增加

蚱蜢蜕变成蛹

蚱蜢产下幼儿

7.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

我们吸气时,我们的胸腔会__。

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