sábado, 25 de septiembre de 2010

Vocabulary #12

Bioluminescence: light produced by living things.



Light Ray: a straight-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 ray.




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




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


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