五年级 科学 第 7 课 生锈
Quiz
•
Science
•
5th - 6th Grade
•
Medium
Erin Yeo
Used 4+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下图显示一把斧头。
为什么斧头上有红褐色的粉末?
斧头生锈了
斧头肮脏了
斧头褪色了
斧头涂了一层漆
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪些物品会生锈?
I. 金戒指
II. 塑料瓶
III. 剪刀
IV. 栏杆
I 和 II
I 和 IV
II 和 III
III 和 IV
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
导致铁制品生锈的原因是什么?
I. 水
II. 空气
III. 阳光
IV. 铁
I 和 II
I 和 III
II 和 IV
III 和 IV
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下图显示一项实验。
为什么一个星期后图钉没有生锈?
干氯化钙吸取了空气。
干氯化钙吸取了水分。
干氯化钙吸取了空气中的水分。
干氯化钙吸取了空气中的氧气。
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪些铁钉会生锈?
K 和 L
L 和 M
J, K 和 L
K, L 和 M
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪项是物体P和物体Q的防锈方法?
油漆和包裹塑料
涂润滑油和油漆
油漆和镀不锈金属
镀不锈金属和涂润滑油
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下哪项不是防锈的重要性?
确保安全
浪费维修费
延长使用期
保持物品干净
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