四年级 生锈(1)
Quiz
•
Science
•
4th - 6th Grade
•
Practice Problem
•
Medium
pei shi
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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?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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?
水
灰尘
空气
汽油
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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
哪项最有可能是Q物品?
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