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===Meaning===
[[File:PrismPicture.png|right|300px|thumb|A [[glass]] [[prism]] with a [[Light Ray|ray]] of white [[light]] being split into the colours of the [[spectrum]].]]
A [['''prism]] ''' is a [[transparent]] [[solid]] block with a triangular base.
===About Prisms===
: [[Prism]]s '''Prisms''' show how white [[light]] is made of many different colours[[colour]]s.
: The different colours all [[refraction|refract]] by a different amount, causing them to split.
When white [[White Light|white light]] enters a [['''prism]] ''' it is split into a [[spectrum]] of 7 colours[[colour]]s:
*Red
*Orange