PAIREDREADPOWERWINDInformationalTextbyAnnWeilASolarHouseSTRATEGIES&SKILLSAComprehensionStrategy:RereadSkill:Author’spurposePhonicsCVCeSyllablesVocabularyStrategyParagraphCluesVocabularyelectricity,energy,flows,haul,power,silent,solar,undergroundELLVocabularypollute,pumpContentStandardsSciencePhysicalScienceWordcount:564**PhotographyCredit:CoverRichardNowitz/NationalGeographicSociety/CORBIS**Thetotalwordcountisbasedonwordsintherunningtextandheadingsonly.Numeralsandwordsincaptions,labels,diagrams,charts,andsidebarsarenotincluded.Copyright©TheMcGraw-HillCompanies,Inc.Allrightsreserved.Nopartofthispublicationmaybereproducedordistributedinanyformorbyanymeans,orstoredinadatabaseorretrievalsystem,withoutthepriorwrittenconsentofTheMcGraw-HillCompanies,Inc.,including,butnotlimitedto,networkstorageortransmission,orbroadcastfordistancelearning.Sendallinquiriesto:McGraw-HillEducationTwoPennPlazaNewYork,NewYork10121ISBN:978-0-02-118959-5MHID:0-02-118959-5PrintedintheUnitedStates.12345678DOC171615141312POWERWINDPAIREDREADChapter1WhatIsWind?...................2Chapter2Windmills.........................4Chapter3WindmillstoWindFarms..........8Chapter4TheFutureofWindPower.........12RespondtoReading...............15ASolarHouse.............16Glossary/Index....................19FocusonScience...........20byAnnWeilEssentialQuestionHowdoweuseenergy?GenreInformationalTextThemainsailuseswindpowertomove.Youcannotseethewind.Butyoucanseeitatwork.Windhaspower.Itcanblowaleaf.Itcanliftakite.Windcandomanythings.Alongtimeago,peoplediscoveredthattheycouldusewindtopushboats.Theywereabletogotonewplaces.SomepeoplesailedtotheAmericas.Otherssailedaroundtheworld!mainsailmwaterCHAPTER1WHATISWIND?Bettmann/CORBIS2Aircanbewarmorcool.Whatiswind?Itismovingair.Movingthingshaveenergy.Windhasenergy.Windgetsitsenergyfromthesun.Thesunwarmstheair.Theairrises.Coolairmovesintotakeitsplace.STOPANDCHECKWhathaveyoulearnedaboutwindsofar?CoolairWarmairIllustration:RobSchuster3ThiswindmillinCaliforniapumpswater.Sailboat...
