第七章 认识物质

Quiz
•
Science
•
7th - 9th Grade
•
Medium
Teo Jing Yang
Used 68+ times
FREE Resource
20 questions
Show all answers
1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
组成物体的简单成分叫?
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
物质可分成哪三态?
固态
无态
液态
气态
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
“分子必须通过电子显微镜、离子显微镜才能看到。”此说法正确吗?
正确
不正确
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
_________是一种元素能保持其化学性质的最小单位。
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
根据分子之间的距离,空隙最小的是_______,最大的是________。
固体,气体
气体,固体
液体,气体
液体,固体
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下的物质都以分子的状态存在着,除了:
氧气
水
二氧化碳
石墨
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
1827 年,英国植物学家________(Robert Brown, 1773- 1858) ,在显微镜下观察到悬浮在水中的花粉颗粒在做无规则运动。
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