A ==Key Stage 3=====Meaning==='''Radiation''' is an [[Energy Transfer|energy transfer of ]] that spreads the [[energy]] by [[wave]]s starting from a [[Centre|central]] [[point]]. ===About Radiation===: Light is a '''radiation''' that can [[Energy Transfer|transfer energy]] from one [[Energy Store|energy store]] to another.: Sound is a form of '''radiation''' that [[Energy Transfer|transfers energy]] by pressure waves through a [[solid]], [[liquid]] or [[gas]]eous [[medium]].