四年级科学

Quiz
•
Science
•
4th Grade
•
Medium

JY LIM
Used 1K+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
凯奇根据材料的性质,把材料分成四组。凯奇运用了哪项科学程序技能?
观察
推断
预测
分类
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
哪项有关人类的排泄和排遗的说明是正确的?
人类不需要每天排泄和排遗
肾帮助人类排出体内的毒素
肺排出矿物盐、尿素和水分
人类必须把无法消化的食物渣滓排出体外
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
能承受疼痛
减低受伤的机会
使四肢变得敏捷
使眼睛能看见体积小的物体
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
J 部分-阳光 ; K部分-水
J 部分-水 ; K部分-空气
J 部分-地心引力 ; K部分-阳光
J 部分-触动 ; K部分-地心引力
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
以下哪些特征属于两栖类动物?
I 胎生
II 卵生
III 有毛发
IV 皮肤潮湿
I 和 II
I 和 III
II 和 IV
III 和 IV
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
哪项不是光合作用的重要性?
净化空气
净化地下水源
提供生物所需的能量
提供生物呼吸所需的氧气
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
声纳
回声
次声波
超声波
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