6年级科学复习
Quiz
•
Education, Special Education
•
6th Grade
•
Practice Problem
•
Medium
Jessie cheng
Used 4+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
图1显示用相同方法来自卫的两种动物。
图1的动物如何保护自己?
含有毒性
有坚硬的鳞片
自断身体部位
卷曲身体
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
图2显示青蛙的生命周期。
青蛙在哪一个成长阶段时用鳃呼吸?
卵
蝌蚪
长出前脚
成为青蛙
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
图3显示一条小丑鱼和海葵。小丑鱼受到敌人威胁时,会躲在海葵之间。小丑鱼获得保护,海葵则获得捕食的机会。
这种相互关系可称为 ___________.
互利共生
同类竞争
寄生关系
共栖关系
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
以下显示人类的牙齿结构的资料。
在空腔的两侧
形状尖利细长
切断黄瓜
磨碎花生
切断蔬菜
撕扯肉类
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
图4显示一个正在操作的电器。
哪项是图4中的电器操作时所涉及的能的转换?
化学能 → 动能
电能 → 热能
化学能 → 电能 → 势能
电能 → 动能
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
家明用纸张制作了一个模型船。他把模型船放在水后,模型船很快就湿透了,并沉入水底。他应该用什么材料来制造模型船,才能避免上述情况的发生?
卫生纸
海绵
纸卡
泡沫塑料
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
当人类呼气时,下列哪项说明是正确的?
胸腔会扩张和横膈膜往下移
胸腔会收缩和横膈膜往上移
胸腔会扩张和横膈膜往上移
胸腔会收缩和横膈膜往下移
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