domingo, 15 de agosto de 2010

voacabulary 1

Bioluminescence:light  produce by living organisms.




















Light Rays:a stright-line beam of light as it travels outward from its source.




















Law of Reflection:the angle of an incoming light ray equals the angle of the reflected rays.
























Concave Mirror:a mirror that curves out on the shiny side.




















Convex Mirror:a mirror that curves out on the shiny side.

























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