1) How does light travel before it hits a medium? a) in a zig-zag pattern b) in a circular motion c) in a straight line 2) Which picture shows reflection of light? a) b) c) 3) Which picture shows refraction of light? a) b) c) 4) Which of the pictures does not belong in this group? a) oil in glass b) tin foil c) metal spoon 5) Which of the pictures does not belong in this group? a) b) c) 6) Which of the pictures does not belong in this group? a) b) c) 7) Which of these pictures does not belong in this group? a) b) c)

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