IGCSE›Cambridge IGCSE Physics›Mind mapsStates of MatterCambridge IGCSE Physics: Mind mapStudy pack PDFAlso for this subtopic:Revision notesFlashcardsSubtopic testCover factsSolidsFixed shape and fixed volumeParticles vibrate about fixed positionsHigh density, incompressibleCannot flowLiquidsNo fixed shape, takes container shapeFixed volumeParticles close, random, move freelyIncompressible but can flowStates of Mattersolid, liquid, gasGasesNo fixed shape and no fixed volumeParticles far apart, moving rapidlyVery low densityHighly compressibleIntermolecular forces negligibleChanges of stateMelting: solid → liquidFreezing: liquid → solidEvaporation: liquid → gasCondensation: gas → liquidSublimation: solid → gasDeposition: gas → solidExam tipsLiquids have fixed volume, not 'no volume'Melting point is one temperature, not a rangeSpell sublimation and deposition correctlyCompare states using shape and volume