Welcome!,lab,Theyaredoingscientificexperiments.,Itsagoodplacetostudy,Itsagreatplacetoexplore,Itsawonderfulplacetodiscovernewthings!,lab,MODULE5ALessoninaLab,ReadingandVocabulary,PassageBASimpleScientificExperiment,B.aim,D.method,A.result,C.conclusion,C,Thestagesofascientificexperiment,cleanironnails,testtubes,testtubeholder,cottonwool,oil,Bunsenburner,Apparatus,1.Whatistheuseofthecottonwoolinthetesttube?,2.Whymustweboilthewater?,3.Whatistheuseoftheoil?,Thecottonwoolcankeepairdry.,Thismakessurethereisnoairinthewater.,Theoilcankeepairoutofwater.,AnExperimentReport1._:2._:3._:(1)(2)(3)4._:5._:,Aim,Apparatus,Method,Result,Conclusion,Ironindryair,Method,(1)Putsomeironnailsatthebottomofatesttube.(2)Pushsomecottonwooldownthetube.(3)Leavethetubeforoneweek.,Aim,Tofindoutifironrustsindryair.,Apparatus,cleanironnails,atesttube,testtubeholder,cottonwool,Result,Afteroneweek,thenailshavenotrusted.,Conclusion,Irondoesnotrustindryair.,Ironinthedryair,Result,Thenailsdonotrustinthetubewithair-freewater.,Conclusion,Irondoesnotrustintheair-freewater.,Ironinair-freewater,Aim,Tofindoutifironrustsinwaterthathasnoairinit(air-freewater).,Apparatus,cleanironnails,atesttube,testtubeholder,Bunsenburner,oil,Method,Ironinordinarywater,(1)Half-fillatesttubewithwaterandaddtwoorthreecleannails.(2)Leavethetubeforoneweek.,Aim,Tofindoutifironrustsinordinarywater.,Apparatus,cleanironnails,atesttube,testtubeholder,Method,Result,Thenailsrustinthetubewithordinarywater.,Conclusion,Ironrustsinordinarywater.,Ironinordinarywater,Ironnailsrustinwetair.,PassageB,cottonwool,nails,water,water,water,Thenailshaventrusted,Thenailsdonotrust,Thenailsrust,ASimpleScientificExperiment,1.Inthefirstpartoftheexperiment,the_isdry,notwet.2.Itshowsthatiron_whentheairisdry.3.Inthesecondpartoftheexperiment,youmust_thewatertomakesurethereisno_init.,air,doesnotrust,boil,air,4.Youadd_tothewaterbecausethiskeeps_outofit.5.Itshowsthat_doesnotrustinwaterthathasno_init.,someoil,air,nail,air,Homework,Chooseoneofthethreeexperiments,thenwriteareport.,Goodbye!,Completethesentencesusingwhatwelearnt.,Inthefirstpartoftheexperiment,the_isdry.Itshowsthatiron_indryair.Inthesecondpart,youmust_thewaterto_thatthereisnoairinit._someoiltothewatercan_theairoutofit.Itshowsthat_dontrustin_water.Inthethirdpart,_thetubewithwater.Itshowsthattheyrustin_water.,air,doesntrust,boil,makesure,Adding,keep,nails,air-free,half-fill,ordinary,Ironinair-freewater,Method(1)Half-fillatesttubewithwater.(2)Boilthewaterforthreeminutes.(3)Puttwoorthreenailsinthewater.(4)Addsomeoiltothewater.Thiswillkeepairoutofthewater.(5)Leavethetubeforoneweek.,reactwithsth.與發(fā)生化學反應reacttosth.對反應,1.reactvi.(化學)反應reactionn.,(1).你認為鈣會與水發(fā)生反應嗎？Doyouthinkcalciumreactswithwater?(2).他對那消息沒有反應。Hedidntreacttothenews.,addto把加入addto增加addupto總計是,eg.火上澆油Ifyouaddthreetoseven,yougetten.,Thesenewly-builtga