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→Key Stage 3
*[[Reflection|Reflected]] - [[Light]] can bounce of a surface. This can be either [[Diffuse Reflection]] or [[Specular Reflection]].
*[[Refraction|Refracted]] - [[Light]] can change direction when it changes [[medium]].
===Medium===
: [[Light]] can travel through a [[transparent]] [[medium]] but it does not need a [[medium]] to travel through as it can pass through a [[vacuum]].
: [[Light]] can travel through any [[transparent]] [[solid]], [[liquid]], [[gas]].
: [[Light]] travels most quickly through a [[vacuum]].
: [[Light]] travels most slowly through [[solid]]s.
===Colour===