WheelsWateronthebySueLennoxWheelsWaterontheCover,RickRhay/IstockPhoto;p.3,Bettmann/CORBIS;p.4,Corbis/PunchStock;p.9,UrsulaAlter/IstockPhoto;p.10,Corbis/PunchStock;p.11,KatiNeudert/IstockPhoto;p.12-13,Corbis;p.13,PJMacchia/IstockPhoto;p.14,Bettmann/CORBIS.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.PrintedintheUnitedStatesofAmericaISBN10:0-15-350551-6ISBN13:978-0-15-350551-5OrderingOptionsISBN10:0-15-350335-1(Grade5Below-LevelCollection)ISBN13:978-0-15-350335-1(Grade5Below-LevelCollection)ISBN10:0-15-357550-6(packageof5)ISBN13:978-0-15-357550-1(packageof5)Ifyouhavereceivedthesematerialsasexaminationcopiesfreeofcharge,HarcourtSchoolPublishersretainstitletothematerialsandtheymaynotberesold.Resaleofexaminationcopiesisstrictlyprohibitedandisillegal.Possessionofthispublicationinprintformatdoesnotentitleuserstoconvertthispublication,oranyportionofit,intoelectronicformat.1234567891017912111009080706bySueLennoxTakealookatamapoftheUnitedStates.Traceyourfingeralonganyofthiscountry’srivers.You’llseethattheriversrunthroughanumberofcitiesandtowns.Thepioneerswhostartedsettlementsyearsagochosetolivenearriversandstreamsforgoodreasons.Riverssuppliedwaterfordrinking,cooking,andwashing.Settlerscouldfishtheriversforfood.Theriversmadeiteasiertotransportpeopleandgoodsfromoneplacetoanother.34Livingclosetoriversprovidedanotherbenefit,too.Theflowingwaterwasanimportantpowersource.Intheearlynineteenthcentury,peopledidnothaveelectricity.Therewerenogasmotorengines.Instead,settlersusedwaterpowerto...