G4_LSR_1G 4.14_Sound and Light.pdf

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1、PhysicalScienceGenreComprehensionSkillTextFeaturesScienceContentNonfictionDrawConclusions•CaptionsSoundandLight•Labels•Diagrams•GlossaryScottForesmanScience4.14byColinKongì<(sk$m)=bdijic<+^-Ä-U-Ä-UISBN0-328-13898-313898_CVR_FSDCover15/26/200510:39:40AMVocabularyWhatdidyou

2、learn?SoundandLightabsorption1.Whyistherenosoundinouterspace?compression2.HowaresomeinvisibleelectromagneticwaveshelpfulbyColinKongtous?Howcantheybeharmful?frequencyopaque3.Whatmakeslightbend?pitch4.Soundwavesandlightwaveshavesimilaritiesanddifferences.Onyourownpaper,ref

3、lectionwritetoexplainthesesimilaritiesanddifferences.Userefractiondetailsfromthebooktosupportyouranswer.translucent5.DrawConclusionsAdiverusesaflashlightwhileswimmingtotrytofindsomethingunderwater.Atransparentpersonwalkingdownthestreetusesaflashlighttotrytowavelengthfind

4、herwaythroughthefog.Willthelighttravelfasterunderwateroronland?Explainyouranswer.Illustrations:TitlePage:PeterBollinger3,4,6,7,15PeterBollingerPhotographs:Everyefforthasbeenmadetosecurepermissionandprovideappropriatecreditforphotographicmaterial.Thepublisherdeeplyregrets

5、anyomissionandpledgestocorrecterrorscalledtoitsattentioninsubsequenteditions.Unlessotherwiseacknowledged,allphotographsarethepropertyofScottForesman,adivisionofPearsonEducation.Photolocatorsdenotedasfollows:Top(T),Center(C),Bottom(B),Left(L),Right(R),Background(Bkgd)Open

6、er:(CR)©Cameron/Corbis,(Bkgd)GettyImages,(CC)©Cooperphoto/Corbis;2GettyImages;8(C)©DKImages,(B)GettyImages;9(CR)©DKImages,(BL)GettyImages;10©DKImages;11©BoVeisland,Mi&I/PhotoResearchers,Inc.;12(BL)©ChrisBjornberg/PhotoResearchers,Inc.,(CR)©DKImages;13MikeDunning/©DKImage

7、s;14©AdinaTovy/RobertHardingPictureLibraryLtd.;15©MaxineHall/Corbis;16SteveGortonandKariShone/©DKImages;17AndyCrawfosd/CourtesyoftheFootballMuseum,Preston/©DKImages;18©NOAO/PhotoResearchers,Inc.;20©SouthernIllinoisUniversityBiomedicalCommunications/CustomMedicalStockPhot

8、o;21©DavidParker/PhotoResearchers,Inc.;22GettyImages.;23(R,L)©E.R.Degginger/Color-Pic,Inc.ISBN:0-328-13