ATundraATundraWildernessWildernessbyKittWinstonCover,©agefotostock/SuperStock;p.4,©Prisma/SuperStock;p.5,©TuiDeRoy/MindenPictures;p.6,©RaymondGehman/NationalGeographic/GettyImages;p.7,(tc)©THOMASMANGELSEN/MindenPictures,(l)©PhotoDisc;p.8,©JIMBRANDENBURG/MindenPictures;p.9,©Eastcott/Momatiuk/AnimalsAnimals;p.10,©FLIPNICKLIN/MindenPictures;p.11,©WINFRIEDWISNIEWSKI/FOTONATURA/MindenPictures;p.12,©JohnnyJohnson/AnimalsAnimals;p.13,©DavidE.Myers/Stone/GettyImages;p.14,©PhotoDisc/PunchStock.Cartography,p.3,JoeLeMonnierCopyright©byHarcourt,Inc.Allrightsreserved.Nopartofthispublicationmaybereproducedortransmittedinanyformorbyanymeans,electronicormechanical,includingphotocopy,recording,oranyinformationstorageandretrievalsystem,withoutpermissioninwritingfromthepublisher.RequestsforpermissiontomakecopiesofanypartoftheworkshouldbeaddressedtoSchoolPermissionsandCopyrights,Harcourt,Inc.,6277SeaHarborDrive,Orlando,Florida32887-6777.Fax:407-345-2418.HARCOURTandtheHarcourtLogoaretrademarksofHarcourt,Inc.,registeredintheUnitedStatesofAmericaand/orotherjurisdictions.PrintedinChinaISBN10:0-15-350985-6ISBN13:978-0-15-350985-8OrderingOptionsISBN10:0-15-350601-6(Grade4On-LevelCollection)ISBN13:978-0-15-350601-7(Grade4On-LevelCollection)ISBN10:0-15-357938-2(packageof5)ISBN13:978-0-15-357938-7(packageof5)Ifyouhavereceivedthesematerialsasexaminationcopiesfreeofcharge,HarcourtSchoolPublishersretainstitletothematerialsandtheymaynotberesold.Resaleofexaminationcopiesisstrictlyprohibitedandisillegal.Possessionofthispublicationinprintformatdoesnotentitleuserstoconvertthispublication,oranyportionofit,intoelectronicformat.1234567891037312111009080706byKittWinstonATundraATundraWildernessWildernessItistheendofthewinteronthetundra.Formonths,dayshavehadfew,ifany,hoursofsunlight.Asdaylightgrowslonger,thetundraawakenswithlife.Thetoplayeroficebeginstomelt.Thesoilbecomeswarmer.Firstcomeplants,theninsects.Asspringarrives,animalsreturntothisfrozenland.Although,someanimalsstayonthetundrayear-r...
