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==Key Stage 3==
===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===
: '''Prisms''' show how white [[light]] is made of many different [[colour]]s.
: The different colours all [[refraction|refract]] by a different amount, causing them to split.
When [[White Light|white light]] enters a '''prism''' it is split into a [[spectrum]] of 7 [[colour]]s:
*Red
*Orange
*Yellow
*Green
*Blue
*Indigo
*Violet
{| class="wikitable"
|-
|[[File:PrismDiagram.png|center|500px]]
|-
| style="height:20px; width:200px; text-align:center;" |A [[diagram]] of a '''prism''' showing how [[White Light|white light]] is made of the 7 [[colour]]s of the [[spectrum]].
|}
==Key Stage 4==
===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]].]]