GCSE›Edexcel GCSE Chemistry›Mind mapsStates of MatterEdexcel GCSE Chemistry: Mind mapStudy pack PDFAlso for this subtopic:Revision notesFlashcardsSubtopic testCover factsSolidsRegular, closely packed particlesVibrate about fixed positionsLowest energyLiquidsRandom arrangement, close togetherSlide past neighboursMedium energyGasesRandom arrangement, far apartMove rapidly in all directionsHighest energyStates of mattersolid, liquid, gasslgState changesSolid to liquid: meltingGas to liquid: condensingSolid to gas directly: sublimingGas to solid directly: depositingAll are physical changes, no new substanceEnergy and dataMelting: forces partly overcome, order breaks downBoiling: forces completely overcomeTemperature is constant during a changeBelow melting point: solid; above boiling point: gasExam tipsGive arrangement, movement and energy togetherNever call melting a chemical reaction