Thetextmainlytellstheformationoftheearthandthedevelopmentoflifeonit.Theuniversebeganwitha"BigBang".Atfirst,theearthwasacloudofdust,latertheearthbecameasolidball.Onbaseoftheatmosphere,astheearthcooleddown,waterbegantoappear.Later,somesmallplantsgrowonthewater,thenshelfishandotherfishappear.Next,greenplantsbegantogrowonland.Thentheinsectsandamphibiansappear.Afterthat,thereptiles,thedinosaursappearstepbystep.Withsomanyconditions,atlast,mammals,includinghumansappear.