There are many differences between ScienceFiction and {{Fantasy}}, but some things [[ScienceFantasy blur the lines]] [[SpeculativeFiction between them]]. Regardless, there are lots of ways that {{trope|s}} from both can overlap.

SisterTrope to [[GunCounterpart Gun/Sword Counterpart]] and AnimalCounterpart, compare MagicVersusScience, MotherNatureFatherScience, SpeculativeFictionTropes, ClarkesThirdLaw and SufficientlyAnalyzedMagic. Not to be confused with FantasyCounterpartCulture, though the two could overlap.
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!!Tropes:
* AlchemyIsMagic -- ChemistryCanDoAnything
* AllMythsAreTrue -- AllTheoriesAreTrue
* AntiMagicalFaction -- AntiHumanAlliance (though magic-wielding humans can exist)
* AuraVision -- StatOVision
* BanOnMagic[=/=]FantasyGunControl -- NuclearWeaponsTaboo
* BioluminescenceIsCool -- TronLines (though the latter can sometimes be found in fantasy)
* BlueCollarWarlock -- StreetSamurai
* ChainmailBikini -- LatexSpacesuit
* CreatingLifeIsBad -- AIIsACrapshoot
* ConstructedWorld -- ALongTimeAgoInAGalaxyFarFarAway
* CoolAirship -- CoolStarship
* DemBones -- SkeleBot9000
* DifferentlyPoweredIndividuals -- TheSparkOfGenius
* DoingInTheWizard -- DoingInTheScientist
* DreamWalker -- DigitizedHacker
* DungeonPunk -- CyberPunk[=/=]BioPunk
** GaslampFantasy -- SteamPunk[=/=]DieselPunk[=/=]CattlePunk
** GothicPunk -- CyberPunk
* EvilSorcerer -- MadScientist
* TheFairFolk -- TheGreys
* FantasticSapientSpeciesTropes -- AlienTropes
* FantasticScience -- FictionalFieldOfScience
* FantasyKitchenSink -- SciFiKitchenSink
* FantasyMetals -- {{Unobtainium}}
* FunctionalMagic -- PsychicPowers
* {{Ghostapo}} -- StupidJetpackHitler
* {{Golem}} -- RidiculouslyHumanRobot
* GorgeousPeriodDress -- CrystalSpiresAndTogas
* HeroicFantasy[=/=]LowFantasy -- PlanetaryRomance
* HighFantasy -- SpaceOpera
* HotWitch -- HotScientist
* InstantRunes -- MatrixRainingCode
* KnightInShiningArmor -- SpaceMarine
* TheLegionsOfHell -- MechaMooks
* {{Lilliputians}} -- {{Nanomachines}}
* LizardFolk[=/=]SnakePeople -- TheReptilians
* MadOracle -- MadScientist[=/=]MadDoctor
* MadeOfMagic -- EnergyBeings
* {{Magibabble}} -- {{Technobabble}}
* MagicAIsMagicA -- MinovskyPhysics
* MagicCarpet -- HoverBoard
* MagicalLand -- InsideAComputerSystem
* {{Magitek}}[=/=]MagicPoweredPseudoscience -- MagicFromTechnology
* MysticalPlague -- SyntheticPlague
* NewPowersAsThePlotDemands -- NewRulesAsThePlotDemands
* NoSuchThingAsWizardJesus -- NoSuchThingAsSpaceJesus
* NotThatKindOfMage -- NotThatKindOfDoctor
* OccultDetective[=/=]VampireDetectiveSeries -- AndroidsAndDetectives
* OurElvesAreBetter -- SpaceElves
* OurMonstersAreWeird -- StarfishAliens
* ParodyMagicSpell -- ItRunsOnNonsensoleum
* PortableHole -- PocketDimension
* TheRedMage -- OmnidisciplinaryScientist
* TheSkyIsAnOcean -- SpaceIsAnOcean
* StandardFantasySetting -- StandardScifiSetting
* SorcerousOverlord[=/=]BenevolentMageRuler -- EmperorScientist
* {{Telepathy}} -- ElectronicTelepathy
* TheDungAges -- UsedFuture
* TheUndead -- CyberneticsEatYourSoul
* UrbanFantasy -- TwentyMinutesIntoTheFuture
* WeirdWest -- SpaceWestern[=/=]CattlePunk[=/=]DesertPunk
* WitchSpecies -- {{Mutants}}
* WizardDuel -- DuelingHackers[=/=]SniperDuel
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