1) When an object blocks the path of light, what is formed? a) A shadow b) A reflection  c) A fog 2) Materials through which light cannot pass are called  a) transparent b) translucent c) opaque 3) Which of the following absorb light most a) Leaf b) Black wallet c) Lemon Juice 4) Which of the following materials can transmit most of the light? a) A placid lake surface b) A glass block c) A spot of black ink d) A piece of blank paper 5) Which of these materials can cast a shadow? a) A clear glass b) clean cellophane paper c) Clear water d) A piece of wood

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