States of matter

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1、Solidhasadefiniteshape.ItalsohasadefinitevolumebecauseitcanbemeasuredLiquiddoesnothaveadefiniteshape.Ittakestheshapeofitscontainer.Itdoeshaveadefinitevolumebecauseitcanbemeasured.Gasdoesnothaveadefiniteshape.Itsometimestakestheshapeofitscontainerandsometimesfliesfreelyaroun

2、dyou.Theseparticlesarenotconnectedtoeachotherandtakesupwhateverspaceisavailable.LIQUIDSWaterfallLIQUIDSLakeLIQUIDSStreamLIQUIDSCookingoilLIQUIDSPetroleumLIQUIDSWaxoilLIQUIDSLavaLIQUIDSMercurygasAirisAcolorless,odorless,tasteless,gaseousmixture,mainlynitrogen氮气(about78%)andox

3、ygen氧气(about21%)withlesseramountsofargon氩气,carbondioxide二氧化碳,hydrogen氢气,neon氖,helium氦气,andothergases.空气是一种无色、无嗅、无味的气体混合物，主要由氮气（约占78％）和氧气（约占21％）组成，还有少量的氩、二氧化碳、氢、氖、氦及其它气体