加热时,能使蒸发皿内物体均匀受热的是( )。

三年级科学上册

Quiz
•
Science
•
3rd Grade
•
Medium

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35 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
三角架
烧杯
石棉网
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
把颗粒大小相同的食盐放入同样多的一杯冷水和一杯热水中( )。
冷水溶解的快
热水溶解的快
两杯一样快
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
把一杯浓盐水放在窗台上,让杯里的水蒸发。如果杯中的水全部蒸发了,原先溶解在水里的盐会( )。
不会蒸发,会留在杯底
不见了,跟水一样蒸发了
不见了,被杯子吸收了
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
我国实验胚胎学的主要创始人,验证了细胞核和细胞质会影响生物模样的是( )。
竺可桢
童第周
牛顿
袁隆平
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
测量周围空气的温度我们一般使用什么工具?( )。
体温计
水温计
气温计
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
我们用自制的风旗观测风速等级时,""表示( )。
无风
微风
大风
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一般情况,把水加热到( )℃时会沸腾。
0
10
100
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