PAIREDREADCuriousAboutEarthBYSUEGIBBISONEXPLORINGTHEDEEPNarrativeNonfictionSTRATEGIES&SKILLSAPhotographyCredit:CoverRalphWhite/CORBIS.**Thetotalwordcountisbasedonwordsintherunningtextandheadingsonly.Numeralsandwordsincaptions,labels,diagrams,charts,andsidebarsarenotincluded.ComprehensionStrategy:RereadSkill:MainIdeaandKeyDetailsVocabularyStrategyMetaphorandSimileVocabularycascaded,documentation,dynamic,exerts,plummeting,pulverize,scalding,shardsContentStandardsScienceEarthandSpaceScienceWordCount:2,230**Copyright©TheMcGraw-HillCompanies,Inc.Allrightsreserved.Nopartofthispublicationmaybereproducedordistributedinanyformorbyanymeans,orstoredinadatabaseorretrievalsystem,withoutthepriorwrittenconsentofTheMcGraw-HillCompanies,Inc.,including,butnotlimitedto,networkstorageortransmission,orbroadcastfordistancelearning.Sendallinquiriesto:McGraw-HillEducationTwoPennPlazaNewYork,NewYork10121ISBN:978-0-02-119251-9MHID:0-02-119251-0PrintedintheUnitedStates.123456789DOC151413121110PAIREDREADIntroduction.................................2Chapter1DiscoveriesoftheDeep.......................4Chapter2ARemarkableDiscovery.......................8Chapter3TheMissionsContinue........................12Conclusion..................................17RespondtoReading.........................18CuriousAboutEarth...............19Glossary....................................22Index.......................................23FocusonScience....................24EssentialQuestionHowdonaturalforcesaffectEarth?BYSUEGIBBISONEXPLORINGTHEDEEPINTRODUCTIONAlvinexploresthebottomoftheocean.Imaginetravelinginanunderwatervehicle,movingslowlythroughinky-blackwater,notknowingwhatyou’llfindorwhatdangersyou’llencounter.ThisistheexperienceofmarinescientistswhoexploreEarth’soceanfloor.Inthepast50years,deep-oceanexplorershavediscoveredasurprisingabundanceofmarinelifeintheseextremeconditionswherethereisnolight,andthewaterisusuallyfreezingcold.Scientistshavealsostudiedthemovementsoftheoceanfloortobetterunderstandthedyna...
