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===About Fundamental Interactions===
: The '''fundamental interactions''' can cause [[Subatomic Particle|subatomic particles]]s to change direction or change from one [[Subatomic Particle|subatomic particles]] into one or more other Subatomic [[Subatomic Particle|subatomic particles]].
: During the '''interactions''' certain properties of [[Subatomic Particle|subatomic particles]]s are conserved, including [[Conservation of Baryon Number|baryon number]], [[Conservation of Lepton Number|lepton number]], [[Electrical Charge|charge]] and [[strangeness]] (which is conserved in the [[Strong Nuclear Interaction|strong interaction]] but not conserved in the [[Weak Nuclear Interaction|weak interaction]]).
: The four '''fundamental interactions''' are: