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==Key Stage 5==
===Meaning===
The law of '''Conservation of Strangeness''' is the observation that during the [[Strong Nuclear Interaction|strong nuclear interaction]] the sum of the [[Hadron]]s' [[strangeness]] is the same before and after that interaction.
===About Conservation of Strangeness===
: [[Strange-quark]]s have a [[strangeness]] of -1.
: [[Strange-quark|Anti-strange-quark]]s have a [[strangeness]] of +1.
: If a [[Strange-quark]] comes into existence an [[Strange-quark|Anti-strange-quark]] must also come into existence.
: '''Conservation of Strangeness''' cannot be applied to the [[Weak Nuclear Interaction|weak nuclear interaction]].
===Examples===
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