四年级(科学技能)
Quiz
•
Science
•
4th Grade
•
Medium
khor poh suan
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25 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
你运用什么感觉器官来观察P植物和Q植物的成长?
触觉
视觉
味觉
嗅觉
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
哪个条形统计图显示各种鱼的存活概率?
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
一组学生进行P实验时,运用了 "测量和应用数目"这个技能。以下哪项可代表P实验?
验证电路中的干电池能够使多少个灯泡发亮。
确定某种植物是否能够用切茎的方法来繁殖。
测量食盐在不同体积的水中溶解所需的时间。
确定哪些物体是电的绝缘体,哪些是电导体。
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
根据以上资料进行试验,可作出什么假设?
糖的粗细
糖完全溶解所需的时间
糖越细,糖完全溶解所需的时间越短。
为了研究糖的粗细与糖完全溶解所需的时间之间的关系。
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
根据以上资料进行试验,可作出什么目的?
糖的粗细
糖完全溶解所需的时间
糖越细,糖完全溶解所需的时间越短。
为了研究糖的粗细与糖完全溶解所需的时间之间的关系。
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
根据以上资料进行试验,可作出什么反应性变数?
糖的粗细
糖完全溶解所需的时间
糖越细,糖完全溶解所需的时间越短。
为了研究糖的粗细与糖完全溶解所需的时间之间的关系。
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
根据以上资料进行试验,可作出什么操纵性变数?
糖的粗细
糖完全溶解所需的时间
糖越细,糖完全溶解所需的时间越短。
为了研究糖的粗细与糖完全溶解所需的时间之间的关系。
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