推荐回答(4个)
1、准备一个塑料瓶。

2、将塑料瓶上半段给它剪下来。

3、用这个塑料瓶盖子量一下大小,画出两个小圆圈。

4、用剪刀沿着画好的两个小圆圈裁剪下来。

5、剪下来就是这个样子,我们将剪好的两个塑料圆圈重叠,用热熔胶枪将四周粘合起来,粘好后就是一个凸透镜的样子,跟我们的老花镜很像。不过这里要注意一点,我们不要全部粘完,留一个小豁口。

6、将粘好的“凸透镜”放进水中,不断的挤压镜面,让水灌进里面。

7、最好是将里面的空气先挤出来,再挤入水,凸透镜里面尽量不要留有气泡。水灌满以后,将小豁口粘起来。

8、最后做好的凸透镜不滴水,里面无气泡且灌满水,就算一个成功的凸透镜了,确实有放大字体的效果。

第一种,用冰制作,我想不用我说你就知道怎么做了
第二种,用装满水的瓶子就可以了
第三种,用一个小铁丝做个圈,放到嘴中弄点口水就可以了
第四种,用玻璃片自己打磨吧 但很麻烦、
第五种,材料:一个破碎的小灯泡、酒精灯、镊子、小纸板一块。
步骤:1、用镊子夹取小灯泡上的一块玻璃,放到酒精灯上加热,让其烙成小圆珠状玻璃。
2、冷却小圆珠状玻璃。
3、在小纸板上钻一个与小珠大小相近的洞,把小玻璃珠镶进去。
4、通过小珠看物体,可以看到放大的像,自制放大镜做成
自制放大镜的几种方法:
1、在透明玻璃杯中装满水。
2、把冰块做成中间厚,边缘薄的形状。
3、在保鲜袋中装满水,扎紧袋口。
放大镜(英文名称:magnifier):用来观察物体微小细节的简单目视光学器件,是焦距比眼的明视距离小得多的会聚透镜。物体在人眼视网膜上所成像的大小正比于物对眼所张的角(视角)。
使用方法:
观察方法一:让放大镜靠近观察的物体,观察对象不动,人眼和观察对象之间的距离不变,然后移动手持放大镜在物体和人眼之间来回移动,直至图像大而清楚。
观察方法二:放大镜尽量靠近眼睛。放大镜不动,移动物体,直至图像大而清楚。
自制放大镜,只是用这原材料你可能没想过,简单又好玩
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