TheCrcleofLifeCover,RobertPickett/Corbis;3,(1–r)Royalty-Free/Corbis;(c)©ImageSource/SuperStock;4,©HansPfletschinger/PeterArnold,Inc.;5,©CaryWolinsky/IPNStock.com;6,©KrisTimken/BlendImages/PictureQuest;7,©KerenSu/Stone/GettyImages;8,©JamesKing-Holmes/PhotoResearchers,Inc.;9,©StephenDalton/MindenPictures;10,©RonaldBosma/FotoNatura/MindenPictures;11,©Dr.JohnCunningham/VisualsUnlimited;12,©TimHall/PhotodiscGreen/GettyImages;13,©MacduffEverton/Corbis;14,TimHall/PhotodiscGreen/GettyImages.Copyright©byHarcourt,Inc.Allrightsreserved.Nopartofthispublicationmaybereproducedortransmittedinanyformorbyanymeans,electronicormechanical,includingphotocopy,recording,oranyinformationstorageandretrievalsystem,withoutpermissioninwritingfromthepublisher.RequestsforpermissiontomakecopiesofanypartoftheworkshouldbeaddressedtoSchoolPermissionsandCopyrights,Harcourt,Inc.,6277SeaHarborDrive,Orlando,Florida32887–6777.Fax:407-345-2418.HARCOURTandtheHarcourtLogoaretrademarksofHarcourt,Inc.,registeredintheUnitedStatesofAmericaand/orotherjurisdictions.PrintedinMexicoISBN10:0-15-350288-6ISBN13:978-0-15-350288-0OrderingOptionsISBN10:0-15-349940-0(Grade5ELLCollection)ISBN13:978-0-15-349940-1(Grade5ELLCollection)ISBN10:0-15-357325-2(packageof5)ISBN13:978-0-15-357325-5(packageof5)Ifyouhavereceivedthesematerialsasexaminationcopiesfreeofcharge,HarcourtSchoolPublishersretainstitletothematerialsandtheymaynotberesold.Resaleofexaminationcopiesisstrictlyprohibitedandisillegal.Possessionofthispublicationinprintformatdoesnotentitleuserstoconvertthispublication,oranyportionofit,intoelectronicformat.1234567891012612111009080706byKristiMcGeeEverythinggoesthroughagrowthprocess.Puppies,kittens,andhumanbabiesgrow.Theygetolder.Theychangealongtheway.Babiesturnintochildren.Childrenturnintoteenagers.Teenagersturnintoadults.Thesearebigchanges.However,thesechangesaren’tasbigasthechangesinthelifeofasilkworm.Asilkwormchangesfromatinyeggtoamoth.Therearefoursteps:egg,caterpillar,cocoon,andmoth.3STEP1:EggTotalEg...