四年级科学 (上半年复习)
Quiz
•
Science
•
4th Grade
•
Hard
PAN Moe
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
*30分钟后,杯子里的冰块都融化成水了。*
以上活动涉及了哪项科学技能?
假设
诠释资料
测量和应用数目
运用空间与时间的关系
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
*子乐使用两块磁铁进行实验以研究磁铁的磁力的实验结果。*
这项实验中的反应性变数是什么?
磁铁的种类
磁铁的大小
回形针的大小
磁铁所吸引的回形针的数量
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(马、羊)/(青蛙、豹)/(鸭、鸡)
以上动物是根据什么方式来分类的?
进食习性
繁殖方式
移动方式
呼吸方式
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
*呼吸率会受到所进行的活动的剧烈程度所影响。*
针对上述情况,以下哪项假设是正确的?
所进行的活动越剧烈,呼吸率就越高
所进行的活动越剧烈,呼吸率就越低
呼吸率越高,所进行的活动越剧烈
呼吸率越低,所进行的活动越剧烈
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
*听到爆竹声掩住耳朵*
上述说明了人类的哪项生命过程?
排泄
遗传
呼吸
对外来刺激作出反应
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
*食物被消化后,营养会被吸收,无法消化的食物残渣就会形成粪便,通过()过程排出体外。
排遗
排泄
呼吸
繁殖
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪项有关呼吸率的说明是正确的?
活动越剧烈,呼吸率越低
每个人的呼吸率都是一样的
睡觉时的呼吸率比在慢跑时高
呼吸率会随着所进行的活动的剧烈程度而增加
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