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怎样制作温度计
更新时间: 2020-07-06 00:00:00  

自制温度计器材:1公升及两公升装保特瓶各一个、剪刀、红墨水、黏土、吸管、剪刀、尺、温度计、油性笔。

步骤:

1、在1公升保特瓶中加满冷水;

2、在水中滴入数滴红墨水把水染红,以便观察;

3、用笔杆把黏土杆成长条形,然后卷在吸管上,把卷好的黏土形状稍加修饰,使它可以当成瓶塞,恰与1公升保特瓶口密合。

4、把步骤3制好的黏土瓶塞,塞入瓶口,检查黏土瓶塞上是否有漏洞,吸管是否被压迫变形,并调整水位高度,使水位略高于瓶口,用油性笔在吸管的水位处做记

关键词: 怎样 制作 温度计

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