byRachelHaywardbyRachelHaywardSecretsoftheIceExpositoryTextPAIREDREADSuper-visionSTRATEGIES&SKILLSAComprehensionStrategy:SummarizeSkill:SequenceVocabularyStrategyAntonymsVocabularyclings,dissolves,gritty,humid,magnify,microscope,mingle,typicalELLVocabularycaptures,extract,substancesContentStandardsSciencePhysicalSciencePhotographyCredit:ARCTICIMAGES/Alamy**Thetotalwordcountisbasedonwordsintherunningtextandheadingsonly.Numeralsandwordsincaptions,labels,diagrams,charts,andsidebarsarenotincluded.WordCount:1,113**Copyright©TheMcGraw-HillCompanies,Inc.Allrightsreserved.Nopartofthispublicationmaybereproducedordistributedinanyformorbyanymeans,orstoredinadatabaseorretrievalsystem,withoutthepriorwrittenconsentofTheMcGraw-HillCompanies,Inc.,including,butnotlimitedto,networkstorageortransmission,orbroadcastfordistancelearning.Sendallinquiriesto:McGraw-HillEducationTwoPennPlazaNewYork,NewYork10121ISBN:978-0-02-119180-2MHID:0-02-119180-8PrintedintheUnitedStates.123456789QLM151413121110PAIREDREADChapter1ThePropertiesofWater..................2Chapter2SnowandIce............................6Chapter3ACloseLookatIce....................10RespondtoReading....................15Super-vision....................16Glossary/Index..........................19FocusonScience...............20EssentialQuestionWhatcanyoudiscoverwhenyoulookcloselyatsomething?byRachelHaywardSecretsoftheIceKennethG.LibbrechtWaternaturallyoccursonEarthasaliquid(left),asolid(center),andagas(right).CHAPTER1ThePropertiesofWaterWhatisclear,wet,andcomesoutofafaucet?Whatiscold,hard,andfloatsinaglass?Whatisinvisibleandintheair?Theansweristhethreestatesofwater.Watercanbealiquid(water),asolid(ice),oragas(vapororsteam).2liquidsolid(bl)BrandXPictures/Punchstock(br)81a/AgeFotostockWaterhasspecialqualities.Waterdissolvessubstances.Salt,sugar,andgases,suchasoxygenandcarbondioxide,dissolveinwater.At32degreesFahrenheit(0degreesCelsius),waterfreezestoice.Mostsubstancesshrinkwhentheyfreeze,butwaterexpands.Ifabottleofwaterfreezes,wate...
