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探究:阳光下树阴中得光斑是怎样形成的?(1)提出问题:(2)建立假设:1、可能透过光的孔通常为圆形,

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探究:阳光下树阴中得光斑是怎样形成的?(1)提出问题:(2)建立假设:1、可能透过光的孔通常为圆形,
探究:阳光下树阴中得光斑是怎样形成的?(1)提出问题:
(2)建立假设:1、可能透过光的孔通常为圆形,使地面上的光斑也是圆形的.
2、
3、
设计实验,检验假设:
1、在纸片上剪成形状为圆的大小不同的孔,让太阳光通过纸片,观察所有的像.
2、
3、
(4)得出结论:
我把我所有的家底拿出来.
探究:阳光下树阴中得光斑是怎样形成的?(1)提出问题:(2)建立假设:1、可能透过光的孔通常为圆形,
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