四年级科学(下半年复习)

Quiz
•
Science
•
4th Grade
•
Medium
WONG Moe
Used 125+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
上图显示能源的分类。
哪项可以归类在 T 组 和 U 组?
T组:食物
U组:太阳
T组:生物质
U组:核子能
T组:电池
U组:柴油
T组:汽油
U组:风
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪项是不可更新的能源?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪项正确地说明点燃着的蜡烛所涉及的能的转换?
光能 > 热能
化学能 > 光能
电能 > 化学能 > 光能
化学能 > 光能 + 热能
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
上图显示材料的来源。
哪项物品的制作材料源自W?
塑料瓶
气球
雨衣
镜子
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
上表显示一项实验的结果。
如果你想要让一杯热饮快速冷却,你会选用哪种材料制成的容器来盛饮料?
W
X
Y
Z
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
泳镜的制作材料必须具备哪些特征?
会吸水和轻盈
防水和有浮力
防水和有弹性
会吸水和有弹性
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
上图显示一组学生把三种材料浸在水里。
一段时间后,学生记录材料 E、F 和 G的质量变化。这项实验的目的是什么?
计算材料的体积
测试材料的透光能力
测试材料的吸水能力
测试材料的浮水能力
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