When an object blocks the path of light, what is formed?, A shadow, A reflection, A fog, A problem, Opaque or transparent. What is this bottle?, Opaque, Transparent, Opaque or transparent. What is this bottle?, Opaque, Transparent, Which bottle does not let light through?, Bottle 1, Bottle 2, Which will make the darkest shadow? Light shining on a..., sheet of thin tissue paper, glass window, wooden chopping board, plastic bottle.

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