jueves, 12 de agosto de 2010

vocabulary 1

Bioluminescence:Light produced by living organisms.

Light ray:A straight-line beam of light it travels outward from its source.

Law of Reflection:The angle of an incoming linght 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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