
科学 - 密度 & 酸与碱
Authored by Wong Esther
Science
1st - 12th Grade
Used 5+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
把三种物体放入水里,哪些物体会浮起来?
X
Y
X 和 Y
Y 和 Z
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪个物体会沉入水底?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
根据这项实验,哪个物体的密度最大?
P
Q
R
S
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
哪项是物体密度依序从大到小排列?
水,油,铁
铁,水,油
铁,油,水
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
如果要让鸡蛋浮起来,我们可以在水中加什么东西?
(答案超过1个)
糖
醋
盐
油
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在水中加盐后,沉在水底的小番茄浮起来了。你可以作出什么推断?
小番茄变重了
水的密度增加了
水的密度减少了
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
图里显示一张渔网,哪项说明是正确的?
浮球的密度小于水
坠子的密度小于水
浮球和坠子的密度一样
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