UES Bright Students: The Conservation Generation Pre-Visit PowerPoint Script for Teachers Slide 1 – UES / Bright Students Title Slide Slide 2 – Energy Introduction Energy. It’s in you, your home, your environment ‐ it’s in everyone and it’s everywhere. Energy is what moves us, what makes life happen. Slide 3 – Thanks to Energy Today, thanks to energy we can: surf the net, chat with friends and do homework on a computer, watch a movie, play videogames, listen to music, cook dinner, or just turn on a light. Slide 4 - Energy Use Energy is also used to power school buses, cars, planes, and trains. It is used to harvest food, transport food to our communities, and manufacture things such as clothing, toys, books, iPods, and furniture. In fact almost everything in our lives requires energy in some form. Even this presentation takes energy! Question to students (Questions 1 & 2 on the Student Worksheet): Can you think of something you did or used today that required energy? Record responses on chart paper or on the board. Give students time to record selected responses on their Student Worksheets. Can you think of something that you are doing right now that requires energy? Have students record their responses on their Student Worksheets. Slide 5 – Humans Harness Energy All living things also need energy for life. One amazing thing that sets humans apart from other animals is that we have learned to capture, harness and transform energy to do work for us – to accomplish great feats or simply make life a little easier. Slide 6 - What is Energy? (Question 3 on the Student Worksheet) Energy is defined as the ability to do work. Energy comes in different forms and each form offers a unique ability to do work. Forms of energy that people are familiar with include… light energy heat energy sound energy chemical energy and the energy of motion. Question to students (Question 4 on the Student Worksheet):
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UESBrightStudents:TheConservationGenerationPreVisitPowerPointScriptforTeachers
Slide1–UES/BrightStudentsTitleSlideSlide2–EnergyIntroductionEnergy.It’sinyou,yourhome,yourenvironment‐it’sineveryoneandit’severywhere.Energyiswhatmovesus,whatmakeslifehappen.Slide3–ThankstoEnergyToday,thankstoenergywecan:surfthenet,chatwithfriendsanddohomeworkonacomputer,watchamovie,playvideogames,listentomusic,cookdinner,orjustturnonalight.Slide4EnergyUseEnergyisalsousedtopowerschoolbuses,cars,planes,andtrains.Itisusedtoharvestfood,transportfoodtoourcommunities,andmanufacturethingssuchasclothing,toys,books,iPods,andfurniture.Infactalmosteverythinginourlivesrequiresenergyinsomeform.Eventhispresentationtakesenergy!
Questiontostudents(Questions1&2ontheStudentWorksheet):
Canyouthinkofsomethingyoudidorusedtodaythatrequiredenergy?Recordresponsesonchartpaperorontheboard.GivestudentstimetorecordselectedresponsesontheirStudentWorksheets.Canyouthinkofsomethingthatyouaredoingrightnowthatrequiresenergy?HavestudentsrecordtheirresponsesontheirStudentWorksheets.Slide5–HumansHarnessEnergyAlllivingthingsalsoneedenergyforlife.Oneamazingthingthatsetshumansapartfromotheranimalsisthatwehavelearnedtocapture,harnessandtransformenergytodoworkforus–toaccomplishgreatfeatsorsimplymakelifealittleeasier.Slide6WhatisEnergy?(Question3ontheStudentWorksheet)Energyisdefinedastheabilitytodowork.Energycomesindifferentformsandeachformoffersauniqueabilitytodowork.Formsofenergythatpeoplearefamiliarwithinclude…lightenergyheatenergysoundenergychemicalenergyandtheenergyofmotion.
Questiontostudents(Question4ontheStudentWorksheet):
UESBrightStudents:TheConservationGenerationPreVisitPowerPointScriptforTeachers
Canyouthinkofawayweuseeachoftheseformsofenergy?Slide7KineticandPotentialAllformsofenergycanbeclassifiedintotwocategories:kineticorpotential.Slide8–KineticEnergy(Question5ontheStudentWorksheet)Kineticenergyistheenergyofmotionandincludesenergyformssuchas[CLICK]electrical(themovementofelectrons),[CLICK]thermal(movementofatomsandmolecules),[CLICK]radiant(themovementofelectromagneticwaves),[CLICK]motion(themovementofobjects)and[CLICK]sound(whichalsomovesinwaves).Slide9PotentialEnergy(Question6ontheStudentWorksheet)Potentialenergyisstoredenergyortheenergyofposition.Formsofpotentialenergyincludechemical(energystoredinthebondsofatoms),storedmechanical(energystoredinobjectsbyapplicationofaforce),nuclear(energystoredinthenucleusofanatom),andgravitational(energyofposition–suchawaterheldbehindadamorarockontopofahill).Slide10EnergyCanChangeForms(Question7ontheStudentWorksheet)AnimportantandamazingthingaboutenergyisthatITCANCHANGEFORMS!Hereisanexample:Whenyoueatbreakfastinthemorning,youareeatingaformofchemicalpotentialenergy(measuredincalories).Yourbodiestransformthechemicalenergyoffoodintomechanicalenergythatallowsyoutomoveanddoworklikeridingabike.
Slide11:EnergyTransformations–RadianttoChemicalEnergytransformationisabasiccharacteristicofenergy.Becauseenergycanchangeforms,wecanputittoworkforus.Someotherexamplesofenergytransformationinclude:
Radiantlightenergyischangedintochemicalenergybyplantsduringphotosynthesis.
Slide12:EnergyTransformations–ElectricaltoRadiantandThermalElectricalenergychangestoradiantandthermalenergywhenweturnonalightbulb.
Questiontostudents(Question8ontheStudentWorksheet):
Canyouthinkofanotherwaywetransformenergytodoworkforus?
UESBrightStudents:TheConservationGenerationPreVisitPowerPointScriptforTeachers
Slide13–EnergyQuestionOfallthedifferenttypesofenergy,oneisusedmostoftenbyhumans.Itisanenergythatcaneasilybetransformedintoothertypesofenergyandweuseitdaily.Doyouknowwhattypeofenergythisis?Slide14–Electricity(Question9ontheStudentWorksheet)Electricity!Electricalenergy,orelectricity,istheflowofelectrons.Itisauniquelyversatileformofenergy.Itcanbeeasilytransformedintootherformsofenergy,suchasheat,light,ormechanicalenergy.Becauseofitsabilitytoeasilychangeforms,weuseelectricitytodomanythingsforus–weputittowork!Slide15EnergyTransformationsLet’sthinkabouthowweputelectricitytowork.Considerwhathappenswhenyouturnonalight.Whatkindsofenergytransformationsoccurtomakethishappen?Slide16–PluggingintoCoal
Questiontostudents(Question10ontheStudentWorksheet):
Thefirstthingtoconsideris:whatistheoriginalsource?Whatkindsofenergysourcesareusedtogenerateelectricity?Brainstormwithstudentsenergysourcesthatareusedtoproduceelectricity(coal,oil,sun,wind,water,etc.).Slide17–HowaCoalPlantWorks–TransformingEnergyWhileelectricitycanbeproducedfromseveralsources,wewillusecoalasanexampletoshowtheenergytransformationsthatmusttakeplacetolightupthatbulb.
• Startingwithcoalatthesource(whichischemical,potentialenergy)…• Coalisburned,transformingitschemicalenergyintothermalenergy• Thethermalenergyisusedtocreatesteamwhichthenspinsaturbine
transformingthethermalintomechanicalenergy• Themechanicalenergyspinsmagnetswithincoilsofcopperwirewhich
transformsthemechanicalenergyintoelectricalenergy(thisistheelectromagneticeffect!)
• Theelectricitytravelsthroughwirestoourhomes…• Andfinally,electricityistransformedintoheatandlightenergyasweturnon
thelight!Slide18–EnergyTransformationsSummary
UESBrightStudents:TheConservationGenerationPreVisitPowerPointScriptforTeachers
Sojusttoturnonalight,atleast4energytransformationsmusttakeplace!Butbecauseoftheseenergytransformations,wecanturnonalightusingthepotentialenergystoredincoal.
Questiontostudents(Question11ontheStudentWorksheet):
So,nowweknowtheenergytransformationsthatmusttakeplacetolightabulbfromtheoriginalenergysourceofcoal.FromyourlistofotherenergysourcesinQuestion10,describehowoneormoreoftheseenergysourcesmightbetransformedtolightabulb.Reviewwithstudentstheirresponsestothepreviousquestioninwhichtheybrainstormedthingsthatareusedtoproduceelectricity.Selectafewofthesesourcesanddiscusshowthesesourcesmightbetransformedtoproduceelectricity.Slide19RenewableandNonRenewableEnergySources(Question12ontheStudentWorksheet)Currently,yourcommunity’sprimarysourceforelectricityiscoal.However,thereareactuallymanyenergysourcesfromwhichelectricitycanbegenerated.Thesesourcesaregenerallyclassifiedasrenewableornonrenewable.Slide20NonRenewableEnergySources(Question13ontheStudentWorksheet)Non‐renewableenergysourcesarelimited,finiteresourcesthatdonot“renew”themselvesandthusonceused,aregone.Coalisanon‐renewableenergysourcebecauseasitismineditdoesnotreplenishitself.Othernon‐renewablesourcesincludenaturalgas,petroleum(oil),anduranium.Eachofthesesourcesmustbeminedfromtheearthandtheirsupplyislimited.Slide21FossilFuels(Question13ontheStudentWorksheet)Coal,naturalgas,andoilarealsotermed“fossilfuels”becausetheydevelopedfromdecompositionofplantsandanimalsthatlivedhundredsofmillionsofyearsago.Thefossilizedremainsofthedeadplantsandanimalswereburiedandcompressedundermanylayersofsediment.Theincreasedpressureandtemperatureoverhundredsofmillionsofyearstransformedtheremainsintocarbon‐richpocketsofpotentialenergy.Thustheyarecalledfossilfuelsand,onceused,aregone–theyareliterally“non‐renewable.”Slide22PollutionfromFossilFuels(Question14ontheStudentWorksheet)
UESBrightStudents:TheConservationGenerationPreVisitPowerPointScriptforTeachers
Fossilfuels(asdescribedwithcoal)areburnedtogenerateelectricity.Unfortunately,thisprocessemitscarbondioxideandothergasesintotheatmosphere,whichpollutetheenvironmentandcontributetoglobalclimatechange.Aswell,theminingoffossilfuelscanhaveverydamagingimpacts.Andbecausefossilfuelsarenonrenewable,oursupplyislimited.Slide23RenewableEnergySources(Question15ontheStudentWorksheet)Renewableenergysourcesareconsideredrenewablebecausetheyareneverending–theyareabletoreplenishthemselves.Theseincludehydropower(thepowerofwater),biomassenergy(alsocalledbioenergy‐fromlivingmatter),windpower(thepowerofmovingair),geothermalenergy(heatenergyfromtheearth),andsolarenergy(energyfromthesun).Theseenergysourceswillremainaslongasthereisflowingwater,livingmatter,wind,heatfromtheearth,andsunshine.
Questiontostudents(Question16ontheStudentWorksheet):
Whataresomedifferencesbetweenrenewableandnonrenewableenergysources?DiscussanswerstothisquestionandgivestudentstimerecordtheiranswersontheirStudentWorksheet.Slide24TurningaTurbinefortheElectromagneticEffect(Question17ontheStudentWorksheet)Likenon‐renewableenergysources,renewableenergysourcescanbetransformedtogenerateelectricity.Aswithfossilfuels,thepotentialenergyfromthesesourcesistransformedintomechanicalenergytoturnturbines…whichspinmagnetsincoilsofcopperwire…whichgeneratesanelectricalcurrent.Thisprocess–thisphenomenon‐‐isknownastheelectromagneticeffect.Slide25SolarEnergy–SolarThermalSolarenergyisspecialbecauseitcanbeusedtogenerateelectricityintwoverydifferentways.Oneisthroughtheelectromagneticeffect,inwhichtheheatfromthesunisconcentratedandusedtogeneratesteamtospinaturbine.Slide26SolarEnergyPVInadditiontotheelectromagneticeffect,thereisanotherprocess–anotherphenomenon–forgeneratingelectricitywithsolarenergy.Thephenomenonisknownasthephotovoltaiceffect.‘Photo’meanslightand‘voltaic’meanselectricity‐‐so“photovoltaic”meanselectricitygeneratedfromlight.
UESBrightStudents:TheConservationGenerationPreVisitPowerPointScriptforTeachers
Slide27–ThePhotovoltaicEffectHowaSolarCellWorks(Question18ontheStudentWorksheet)Thephotovoltaiceffectoccurswhensunlightisshoneonspecialsubstancesandcauseselectronstoflow‐‐anelectriccurrent!Themainsubstanceinwhichthisoccursissilicon,whichisoneofthemostabundantmaterialsintheEarth’scrust.Siliconisusedtomakesolarcells,whichareusedtomakesolarpanels,whicharespecificallyfabricatedtodirectaflowofelectrons–thatis,togenerateelectricity!
Review“HowaSolarCellWorks”withstudentspointingoutthatsunlightiscomposedoftinyparticlescalledphotons.Photonsstrikeandexciteelectronsin
thesolarcell.Thisstartstheflowofelectrons–electricity!Slide28–GeneratingElectricitywithRenewableEnergySourcesWhetherthesourceissolar,wind,geothermal,hydroorbiomass,generatingelectricitywithrenewableenergysourcesavoidstheenvironmentalimpactsassociatedwiththeminingandburningoffossilfuels.Italsoallowsustoconservenon‐renewableenergysources.Slide29–Environment(Question19ontheStudentWorksheet)Animportantthingtorememberisthatallofourenergysources(renewableandnon‐renewable)areconsideredtobenaturalresources–thatistheycomefromnature–theworldaroundus–ourenvironment.Whenconsideringwhichenergysourcetouse,itisveryimportanttoconsidertheenvironmentaleffectsofusingthatsource.Howmuchpollutiondoesthissourceproducewhenitisusedtogenerateelectricity?Whataffectdoesminingorotherwiseextractingthissourcehaveontheoverallenvironment?Howmuchofthissourceisavailable?Theseandotherquestionsareimportanttoaskwhenconsideringenergysources!
Questiontostudents(Question20ontheStudentWorksheet):
Canyouthinkofsomeotherquestionstoaskwhenconsideringtheuseofanenergysource?DiscussanswerstothisquestionandgivestudentstimetorecordtheiranswersontheirStudentWorksheet.Slide30–QuestionofAbundanceSinceoneconsiderationregardingenergychoicesisitsavailability,whichofallthechoicesdoyouthinkismostabundanthereinArizona?
UESBrightStudents:TheConservationGenerationPreVisitPowerPointScriptforTeachers
Slide31–Arizona’sSolarPotential(Question21ontheStudentWorksheet)SolarEnergy!That’sright,ourstateisblessedwithanabundanceofclean,brightsunshine.Thismapshowstheamountofsolarenergy(inwatthourspersquaremeter)reachingthegroundperday.Thedarkerthered,themoresolarenergy.CanyouseethattheamountofsolarradiationreachingtheearthisveryhighinArizona?ThismeansthatArizonahassomeofthebestsolarenergypotentialintheUnitedStates.Slide32–Arizona’sEnergyUseToday(Questions22&23ontheStudentWorksheet)Evenwithourabundanceofsunshine,westillrelymostlyoncoalforourenergy,followedbynaturalgasandnuclearenergy.Renewablesourcescurrentlyprovideforonly2%ofourneeds.NewEEstandsfornewenergyefficiency,whichaccountsforenergynotusedthankstoenergyconservationandincreasedefficiencyoftheenergywedouse.Slide33–Arizona’sEnergyUseTomorrow(Question24ontheStudentWorksheet)Itisprojectedthatby2025,energyefficiencywillincreaseto7%.Also,Arizonawillincreasetheuseofrenewablesourcesofenergyto16%.Coalusewillbereducedto24%,nuclearincreasedto32%andnaturalgasto21%.Slide34EnergyEfficiencyAsouruseofrenewableenergysourcesincreases,ourrelianceonfossilfuelswilldiminish.Sincefossilfuelsarenon‐renewableandpolluting,itmakessensetousemorerenewableenergy.Whatalsomakessinceisincreasingourenergyefficiency.Butwhatexactlyisenergyefficiency?Slide35–TechnologyBringsEnergyEfficiency(Question25ontheStudentWorksheet)Energyefficiencymeansaccomplishingthesameworkbutwithlessexpenditureoftimeand/oreffort.Simplyput,itmeansusingthingssmarterandusingsmarterthings!Aswemoveintothis21stcentury,technologywillbringusmoreefficientwaystogenerateelectricity.Thisbecomespossibleastechnologicaladvancesallowustoproducemoreelectricityfromagivensource.Italsomeansdevelopingandusingproductsthatrequirelessenergytooperate.Increasingenergyefficiencyreducesoverallenergycosts,reducesconsumptionof
UESBrightStudents:TheConservationGenerationPreVisitPowerPointScriptforTeachers
non‐renewableresources,andminimizesenvironmentalimpacts.Beingmoreefficientwithourenergyuseissomethingeveryonecando.Slide36–InsuringaBrightEnergyFutureToinsureabrightenergyfuture,savenaturalresources,andreducepollutionitisimportantthatweincreasetheuseofrenewableenergysourcesaswellastoincreaseenergyefficiency.Atthesametime,thereissomethingelsethatwecanalldorightnow,somethingthatcananddoesmakeahugedifference.Canyouthinkofwhatthismightbe?Slide37EnergyConservation!(Question26ontheStudentWorksheet):Wecanallconserveenergy!Conservingenergymeantouselessenergy.Thisreducespollution,savesnaturalresources,andalsosavesmoney!Slide38BehaviorandProductsConservingenergymeanstopersonallymakesmartchoicesinourenergyuse.WhiletherearemanyBrightSolutionsforenergyconservation,wecanconserveenergyintwobasicways:wecanmodifyourbehaviorandwecanuseenergyefficientproducts.Slide39–ModifyingBehavior(Question27ontheStudentWorksheet)Modifyingourbehaviormeanschangingthewaywedothings.Inregardtoenergyuse,thismightmean:
• Loweringorraisingthethermostatafewdegrees(not“supercooling”roomsinthesummerorover‐heatingtheminthewinter)
• Wearingasweaterifyoufeelcoolinsteadofturningontheheater• Turningoffthelightswhenyouleavearoom• Takingashortershowertoreducehotwaterconsumption
Slide40UsingProductsthatPromoteEnergyEfficientandConservation(Question28ontheStudentWorksheet)Wecanalsobuyproductsthatuseenergymoreefficientlyorhelpustobemoreconservative.Youcan:
• Buy“ENERGYSTAR”appliances(whichuselessenergytooperate)• Replaceincandescentbulbswithcompactfluorescentbulbs(CFLs)• Useatimertoturnonandofflights• Useapowerstripwithaswitchtoturnoffelectronics
Slide41–StudentsCanMakeaDifference
UESBrightStudents:TheConservationGenerationPreVisitPowerPointScriptforTeachers
UESbelievesthatstudentscanmakeadifference!UESinvestsinyourfuturebyhelpingyoutolearnaboutenergy–whichiswhatwearedoingrightnow!AndUESwillbevisitingyourclassroomsoonafterthisprogram!Ifyouagreetoparticipate,youwillreceivesomecool,take‐home,energyefficientproducts.Slide42–BrightSolutionsandYou(Question29ontheStudentWorksheet)ApplyingBrightSolutionstodayensuresabrightenergyfuturefortomorrow.SomequestionsthepresenterfromUESwillaskyouis,“Whatareyoudoingtosaveenergy?”and“Areyouusingenergywisely?”UESwantstoknow:“WhatareyourBrightSolutions?”Teacherinstructionstostudents:It’stimetobrainstormwayswecanhelpwiththeenergyoutlookforthefuture.Workwithapartnertoshareanddiscussthreethingsyoulearned.WritedownyourideasonyourStudentWorksheets.
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