Which factors could be related with the half in the position of shadows and the difference
in the duration of the day time?
ns.
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To cast a shadow you need an object that can block light rays. Not every object is able to do that. Some materials will let the light pass through whereas others will only block some of it. Objects able to block all the light are called opaque and will form a shadow. You also need a large surface such as a wall or screen on which you can make the shadow visible.
How can you vary the size of a shadow? The closer an object is to the light source, the larger the shadow it casts. This is because an object closer to the source will block a larger area of the light, increasing its shadow size.
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