Contents: Quick Reference Sheets:

• Intro: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page2• Experiment:Jelly Jam Jar Jets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page2• EquipmentList . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page3• Story,Part1:Jack & Jill and the Moon People . . . . . . . . . . . . . . . . .page4• Story,Ending . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page5

Video Transcript:• Intro: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page6• Story,Part1:Jack & Jill and the Moon People . . . . . . . . . . . . . . . . .page8• Experiment:Jelly Jam Jar Jets . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page10• StoryEnding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page13

Teacher’s Guide for:

Jelly Jam Jar JetsNote: All activities in this document should be performed with adult supervision. Likewise, common sense and care are essential to the conduct of any and all activities, whether described in this document or otherwise. Parents or guardians should supervise children. Rock-it Science assumes no responsibility for any injuries or damages arising from any activities.

Note: All activities in this document should be performed with adult supervision. Likewise, common sense and care are essential to the conduct of any and all activities, whether described in this document or otherwise. Parents or guardians should supervise children. Rock-it Science assumes no responsibility for any injuries or damages arising from any activities.

JellyJamJarJetsARock-itScienceLessonFilmedJuly,2009

Title Page of Video

NOTE: This is the transcript of a lesson that was videotaped during an actual Rock-it Science class with real students, not actors. The students’ brainstorming comments are included on the video but are not transcribed here because they’re not part of the lesson presentation.

Rock-it Science2110 Walsh Ave, Unit FSanta Clara, CA 95050www.rockitscience.org

(c) 2013 Rock-it Science Educationally Useful Programs. All Rights Reserved

Rock-it Science Teacher’s Guide Jelly Jam Jar Jets -- Page 2

Intro Quick Recap:• InWorldWarII,onegroupofcountriesranoutofoil,whichtheyneededfortheirtanks,planes,trucks,etc .

• Theyneededtocomeupwithawaytomakethingsrunandflywithoutusingoil .

• Theycameupwithanordinarytubehookeduptoasparkplug,withatailononeendandalittlepipeontheother .Thiswasanengine .

• Thisenginecouldpoweranairplane,hardlyusesanyfuel,andyoucouldburnanythinginit .

• Inordertogetittoworkright,theyhadtogetittotherighttemperature .• TheyputtheseenginesinairplanesandfilledthenosewithTNT .Therewasnopilot;theywereguidedwithagyroscope .

• Ifyoucouldhearoneoftheseplanescoming,youwereokay .Butifyouheardthesoundsud-denlystop,thatmeantitwasabouttolandonyouandexplode .

• Theversionwe’regoingtousetodayismadefromaglassjellyjar .Butputtingfireinsideaglassjarmakesthetoppartgethotwhilethebottomstayscool .Thiscanmaketheglasscrackalongthebottomedge .

Experiment Quick Recap:• Instructorsquirtssome“gastreatment”(amixturecontainingmethylalcohol)intoajellyjarwithasmallholedrilledinthelid,placesthejarinsidealargeclearplastictub,andlightsitwithabarbequelighter .

• Ifthemixturecontainstoomuchfuelortoomuchoxygen,noth-ingwillhappen .

• Warnstudentsnottohavetheirfacedirectlyoverthejarwhenlightingit,butinsteadlookfromtheside,throughthewalloftheplastictub .

• Studentsworkingroupsoffour .Eachgroupgetsalargeclearplastictubandajellyjarwithasmallholedrilledinthelid .Studentswaituntileveryoneisreadybeforeattemptingtolighttheirjar .

• Instructorsquirts“gastreatment”intoeachjarthroughthehole .Overheadlightsareturnedoffinordertoseetheflamesbetter,andturnedbackonaftereachroundoflighting .

• Instructorsremoveusedjarsandreplacethemwithnewones .• Forthesecondround,Instructorsquirtsisopropylalcoholintothejars .Ifitdoesn’tlight,studentscuptheirhandsaroundthejarandswirlitaroundtomakeitwarmer .

• Forthethirdround,Instructorsquirtsmethylalcoholintothejars .Ifitdoesn’tlight,Instructorusesaballoonpumptoforceairintothejar .

Fuel igniting.

Airplane guided by a gyroscope.

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Equipment List: “Jelly Jam Jar Jets”Items needed for Instructor:

• Tub,largeclearplastic,about12”square• Jellyjarwith1/2”holepunchedincenteroflid .• Barbequelighter• Pipette,about12”long• BalloonPump• GasTreatmentcontainingmethylalcohol• IsopropylAlcohol• MethylAlcohol• Cup,plastic,16-oz• Water

Items needed for Students:

Consumables (per 4 students):

• GasTreatmentcontainingmethylalcohol,about1tsp• IsopropylAlcohol,about1tsp• MethylAlcohol,about1tsp• Water,about12oz .Other:

• Tub,largeclearplastic,about12”square• Jellyjarswith1/2”holepunchedincenteroflid(3jarspergroup)

• Barbequelighter• Cup,plastic,16-oz

Prep Work:

• Punch1/2-inchholesincenterofjarlids .

Hole in Jar Lid.

Using pipette to squirt fuel into jar.

Story Recap: “Jack & Jill and the Moon People”

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Part 1:

• JackandJillwenttotheMoonwiththeirKick-Mes .• TheMoonwasmadeofswisscheese,andalienslivedundergroundintheholesinthecheese .• ThealienshadbigscreenTVs,tenniscourts,bowlingalleys,swimmingpools,etc .,allhiddenundergroundsonoonewouldknowtheywerethereandwouldn’tstealthem .

• TheKick-MeslikedbeingontheMoonbecausetheycouldgetkickedfartherinthelowgravity .Theyalsocouldbouncearoundalotmoreintheundergroundholes .

• EvilMisterFrednoticedatrailofJillhairleadingfromtheEarthtotheMoon,sohefolloweditonhisvacuumcleaner .

• Whenhetastedthecheese,hedecidedtosellitonearth .Sohestartedsuckingupchunksofitwithhisvacuumcleaner .

• EverybodyonEarthlikedthecheese,soEvilMisterFredkeptcomingbackandtakingmoreandmorecheese .

• Thealiensknewhe’deventuallyfindtheirhomes,andtheysuggestedgivinghimtheirelixir .• JackandJilltriedtheelixir,whichmadethemreallydrunk .• WhenEvilMisterFredcameback,hebrokethroughintoachamberwheretherewasabunchofelixir,andhedrankitandgottotallydrunk .

• Whilehewassuckingupcheese,hefoundsomeofthealienpeople’sriches,buthewassodrunkhecouldn’tbesurewhathewasseeing .WhenhegotbacktoEarth,hediscoveredhehadsuckedupaswimmingpool .

• JackandJillknewhe’dbebacktotakealltherestoftheriches .

Story Recap (cont.)

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Ending:

• TheKick-Mesgotintotheelixirandfilledthemselveswithalcohol .• JackandJillknewthatEvilMisterFredwascomingback,sotheyturnedoffthelightsinordertohelpthealienshidefromhim .

• EvilMisterFredwashoveringabovethesurfaceonhisvacuumcleaner .• OneoftheKick-Meslitacandletoseewhatwasgoingon,anditgottooclosetohismouth .• Thecandleignitedthealcohol,andtherewasajet-poweredKick-Mebouncingallaroundinsidethecaves .

• TheKick-Mehitaweakspotandshotthrough .• TherestoftheKick-Mesalsolitthemselvesup,becausethiswasfun,sotheyallstartedbounc-ingallovertheplaceandflamingastheywent .

• EvilMisterFredsawtheKick-Mesflyby,andhesuckedupfiveorsixoftheminhisvacuumcleanerbeforeherealizedthesewererocket-poweredKick-Mes .

• AstheKick-Mesbouncedaroundinsidethevacuumcleanerbag,thebaggotbiggerandbigger,untilitexplodedandblewEvilMisterFredallthewaytoPluto .

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Transcript: Introduction Intheolddays,therewasawarthatwenton .TheycalleditWorldWarII .Andpartofthecountrieswereononesideandtheothercountrieswereontheotherside .Onegroupranoutofoil .Whattodo?Youneedoiltomakegasolinetorunyourtanksandyourtrucksandyourcarsandyourairplanes .Andyouneeddieselfuel .Theyhadtofigureoutsomewaytomakethingsrunonthegroundandflythroughtheairwithoutusingalotofexpensiveoil .Andtheyfiguredoutsomethingthatwasreallyweird .Ifyoutakeanordinarytubewithnothinginit,justanordinarytube,andyouhookontoitsomethinglikeasparkplug--asparkplugislikeateslacoilthatmakessparksinside--andyouputatailonitcomingoutthisway,andyouputalittlepipecomingoutthisway .Theysaid,“Thereyougo!That’sanengine .”Andpeoplelookedatthatandsaid,“No,it’snot .It’satubewithabenttail .”Andtheysaid,“Yeah,butit’sgoingtogo!”Theycouldpoweranairplanewithit,andithardlyusesanyfuel,andyoucanburnanythingyouwant .Youcouldputcookingoilinthereandburnitup .Andtheysaid,“Ooookayyy,let’sseewhatitdoes .”

Therewasatankherewithsomefuelinit,pouringintoit .Sotheyletsomefuelgoin,andsparkedthesparkplug,anditwentka-boom!Someflamesshotouthere,andsomeflamesshotouthere .Anditstopped .Andhesays,“Gottawarmherup!”Soheputinalittlemorefuelanditwentka-boomagain .Putinalittlemorefuelanditwentka-boomagain .Andwhenhefinallygotittotherighttemperature,itstartedgoingba-ta-ta-ta-ta-ta-ta-ta-ta-ta-ta-ta,andflamesshotoutbothplaces,mostofitcomingoutthatway .Andtheflamewaspushingreallyhardagainsttheframethatitwassit-tingon .Like,ifyoumadeahatoutofthisthing,itwouldprobablytipyouover .

Andtheyputtheseinairplanes .Theyputwingsonthem,likethat .Theyputatailonthem .Theyputanose,likethat .AndtheyfilledthewholenosefullofsomethinglikeTNT .Andtheyflewthemoffofanairport .Therewasnoguyinside,nobodytosteerit .Theycameoffofawoodenramp .Theyjustflewthemoffwithnobodyinthere .Theyhadagyroscopein-side .Knowwhatagyroscopeis?It’saspinningwheel .Spinsreallyfast .Anditkeptthethingstraightandflat .Andtheyjustaimeditattheenemy--voooommmm .

Okay,youguys,supposeyou’retheenemy,andyou’resittingaroundhavingdinner .Andyou’retalkingaboutwarandeverythingthat’sgoingon .Andyouhearthissoundupintheair--vwoooooooooo .Yousay,“Uhoh!It’soneofthosethings!”Andthenthesoundstops,andyougo,“Oh,no .”Anditwouldglidedownandka-boom!Thepeoplethatwerehavingdinnerandstuffdidn’tworryaslongastheycouldhearthesoundbecauseaslongasitwasgoingvrmmmmmm,itwouldgooveheadandwouldgobeyondthem .Butifitwasjuststartingtocometowardsthemandstop,they’dsay,“Okay,everybodyin

A simple Engine.

Airplane guided by a gyroscope.

Flames shooting out.

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thecellar .”Andthey’dleavetheirdinneronthetableandrundownthestairs,downinthebasementre-allyfast,andthisthingwouldgocrash!Andblowuptheirwholekitchen .Itwasvery,veryefficientandusedalmostnofuel .

Andsomeguysontheinternetsaid,“Wecandothat .Wecanmakeoneofthose .Andtheydiditwithajellyjar .Sowe’regoingtotrythattoday .Ifyoulookontheinternetaboutthesethings,they’recalledajellyjamjarjet .Andtherearevideotapesofguystryingtomaketheirjellyjamjarjetswork .Butmostofthetimetheydon’twork .Andtheytryanditgoespfftt!Andtheytryagainanditgoespfftt!Andtheytryagainandagainandagain .Finally,Ifoundasitewheretheguyfigureditallout,soIcopiedhisideas .Andwecanmakeourjellyjamjarjetswork .

Now,there’sanotherproblemwithjellyjamjarjets .They’remadeoutofglass .Ifyouputfireinsideofaglasscontainer,well,that’snotsobad .It’sgoodqualityglass .Butwhenthetoppartofitgetshot,andthebottompartiscool,thenitcracksrightaroundthebottomedge .Anditjustgoespshhht!Andyoulookatitandgo,“Oh,man,myjellyjamjarjetjustdied .”Andwe’llseehowmanywecangettorunbeforewebreakallthejarsthatwehavetoday .We’lltryandkeepsomejarsforthesecondclass,butyouneverknow .Butfirstweneedacrazystory .

Onceuponatime,JackandJillwere--let’ssee,theywereontheMoon .AndtheytookalongtheirKick-Mes .TheMoonismadeoutofswisscheese .Yeah,it’sgotallthoseholesinit,it’sgottobeswisscheese .AndJackandJillhadalwayswonderedhowallthoseholesgotthereontheMoon,sotheydecidedtogothereandlook .Andtheydiscoveredthattherewerealiensthere .Therewerealiensthatlooklikethat .Andthealienslivedintheholesintheswisscheese .Theyhadthesebigdiggyhandssotheycoulddigtheswisscheeseoutandeatitallup .Andthereareallkindsofhousesandthingsdowninside .

Soifyou’reanalienlivingontheMoon,theyliveprettynice .TheyhadbigscreenTVsintheirhomes,theyhadtenniscourts,bowlingalleys,baseballdiamonds,basketballcourts,theatres,everythingyoucanimagine,swimmingpools,itwasallthere .AndJackandJillcouldn’tbelieveit,becausetheoutsideoftheMoonwasjustallthischeesystuff .Andtheyaskedthealiens,“Whydon’tyouputyourstuffonthesurfacewhereyoucanplaywithitmoreeasily?You’vegottoeatawayatallthisthingtomakethoseholes .”Theysaid,“Ah,ifweputitontheoutside,anyalienthatflewbywouldseethatwewereallrichandhappy,andthey’dcomeandstealitfromus .Sowejusthideunderthegroundandnobodybothersus .JackandJillsaid,“Whoa,that’sgreat .”

Let’sputJackandJillinthere .AndJackandJillhadbroughtalltheirKick-Meswiththem .AndtheKick-MesreallylikeditontheMoonbecausetheMoonhadone-sixththegravityofEarth .SowhenyoukickaKick-Me,insteadofgoingtenyards,yougosixtyyards .AndsotheywouldkickaKick-Me--chooooooo--he’dflyalong,longways,andmaybehe’dlandinaholeandbouncearoundinside--doonk,doonk,doonk,doonk,doonk,doonk,doonk .Hecouldbouncealotfarther,too .AndtherewereKick-Mesallovertheplace .Andforquiteawhile,JackandJillhadagreattimewiththeirKick-Mesplayingthere .

AndEvilMisterFredhadbeenflyingaroundtheEarth,droppingthingsonpeople,andhenoticedatrailofJillhairleadingtowardstheMoon .Hesaid,“Hmm,gottafollowthat!”Sohefollowedalongonhisvacuumcleaner .[Student: But he can’t breathe.]Surehecan .EvilMisterFredbreathesthroughananchovyfish .Itprovidesalltheairheneeds .There’stheanchovystickingoutofhismouth .He’sbreathinganchovyfishair .AndwhenEvilMisterFredgottotheMoon,allhesawwascheese .Andhelandedhiscraftdownthere,andhelookedatitandsureenough,itfeltlikecheese,lookedlikecheese .Hegrabbedapieceofit--tastedlikecheese .Hesaid,“Wow,swisscheesecostsfourdollars

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Story: “Jack & Jill and the Moon People”

Alien living in the swiss cheese holes.

Basketball Court.

Kick-Mes bounced all over.

The trail of Jill hair from Earth to the Moon.

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foreightounces .There’salotofcheesehere .I’mjustgoingtotakeabunchofthisMoonandsellitonEarthtoallthegrocerystores .I’llcornerthecheesemarket .”SoEvilMisterFredflewhisvacuumcleanerover,andhestartedsuckingupbigchunksofcheeseintohisvacuumcleaner .Andthenheflewbackhomeandsoldtheswisscheese .Andtheydiscov-eredthiswasthebestswisscheesetheyhadevertasted .AndEvilMisterFredcreatedaswisscheeseempire,sellingcheesefromtheMoon .

Well,thealiensandJackandJillandeverybodywerehidingunderneath,andthey’resaying,“Uh-oh,thisisbad .Soonerorlaterhe’sgoingtohitoneofourchambersanddiscoverallthegoodthingswe’vegothere .Thenwe’reintrouble .”Andoneofthealienssaid,“Well,maybewecouldfeedhimsomeofourfamouselixir .”JackandJillsaid,“What’selixir?”Andtheysaid,“Well,cometryitandyou’llsee .”JackandJillgotabottleofthisstuff .Itsaid“FermentedSwissCheese”onit .Andtheysaid,“Well,can’tbeallthatbad .It’scheese--it’snatural .”Sotheytookacoupleofswigsofthestuff,andJackwent,“Whooooaaaahhhh!”AndJillsaid,“Whoa,what’supwiththat?”AndJacksaid,“Tryit .”AndthenJackwent[staggers around drunkenly]“Whoooaaa,I’lljustsingsongs .”AndJilldranksome,andshesays,“Ohhhhhh,thisislikealcohol!Thisislikereallypowerfulalcohol .”Andthealienssaid,“Really?Wejustdrinkitlikewater .Doesn’tdoanythingtous .”JackandJillsaid,“Well,tous,itmakesusweird!”Andtheysaid,“AreyougoingtogivesomeofthattoEvilMisterFred?Thiscouldbebad .”

Well,aboutthattime,EvilMisterFredcamedown,andhebrokethroughintooneofthechamberswheretherewasawholebunchoftheelixir .AndEvilMisterFredsaid,“Mmmm!”Sohedrankthewholebottle--glug,glug,glug,glug,glug,glug,glug,glug!Andhegottotallydrunk .Andnowhe’sgo-ing,[staggers]“Awhhhhhh!”He’sflyingallaround,goingchung,chung,chung,takingpiecesofswisscheesehereandthere .Hefoundsomeoftheirriches,andhesays,“Wow,Iwonderifthat’srealornot .”Hecouldn’ttrusthiseyes,hewassodrunk .Andthenheeventuallyflewbackwithwhathehad,andhesuckedupsomeoftheirgoodstuff .Whenhegotbackandopenedhisvacuumcleaner,itwasn’tjustswisscheese .Therewasaswimmingpoolinthere .Andhesaid,“Whoa,how’dthatgetthere?Ididn’tputthatthere .Idon’trememberathingaboutthat .”Ofcourse,he’sgoingtocomeback .Andhe’sgoingtofindoutaboutalltherichesthey’vegot .He’sgoingtoruineverything .IfyouwereJackandJillandwantedtostophim,whatwouldyoudo?

Evil Mister Fred sucking up chunks of cheese.

Jack and Elixir

Imagination and Brainstorming Time[Students make suggestions](THEREARENOWRONGANSWERS!Whatevertheysay,youshouldreply:“That’sagoodidea,”“Theymightdothat,”etc .Afterbrainstorming,proceedwiththeexperi-ments,thenfinishthestory .)

Andwe’regoingtoleavethis“Tobecontinued . . .”

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Forourexperiment,you’regoingtoworkingroupsoffour,andtheremightbeonegroupoffive .Theonlythingyou’llneediseyeprotection .Youdon’tneedhandprotection .Sogetsomegogglesforyoureyes .[Students put on goggles, and each group is given a clear plastic tub, about one foot square.]Everybodymoveyourchairsawayfromthetable .

[Instructor takes a jelly jar, the kind with a lid that comes in two pieces, and takes out the center part of the lid.]Here’salidthatIpokedaholein[reassembles the lid and screws it onto the jar],andyoucanjustleavethelidon .Thejarsitsinthecontainer .[Places jar in plastic tub.]Thecontaineristhereincasethejarexplodes .Neverhadoneexplode,butyouneverknow .Andwe’regoingtoputsomefuelinthere .

Let’strysomeofthisstuff,called“gastreatment .”It’ssupposedtobemethylalcohol,butit’skindofamixture .[Draws out some of the liquid with a pipette and squirts it into the jar through the hole in the lid.]Andweputsomefuelinside .Andthejarsitsinthere .Doyouremem-berwhenwedidtheexplodingfilmcans?Ifyougettoomuchfumesin

thereandnotenoughoxygen,itdoesn’tdoanything .Ifyougettoomuchoxygeninthereandnotenoughfumes,itdoesn’tdoanything .Butifyouhappentogettherightamount,thenitshoulddosomething .

[Lights a butane barbeque lighter.]I’mgoingtoputaflamebytheopening .Now,whenyou’reputtingaflameoveranopening,it’susuallynotagoodideatoputyourfacedirectlyoveritandtrytolightit,becauseifitgoesfoom!it’llburnyoureyebrowsofflikeitdidonMythBusters .Sothewaytodoitis,youkindoflookthroughthesideofthethingandyoudoitlikethis .[Brings flame down to hole in jar lid. There is a bright flash, and then the fuel starts to burn noisily, like an engine. Instructor turns overhead light off so students can see it better.]There,that’scalledajellyjamjarjet .

Afteritdoesthat,thejarnowisreallyhot .Ifyoureachedintheretolookatthejar,youwouldpickitupalittleways,andthenyournerveswouldsaytoyourwrist,“It’shot .”Andyourwristwouldsaytoyourelbow,“It’sreallyhot .”Andyourel-bowwouldsaytoyourshoulder,“It’sreally,reallyhot!”Andyourshoulderwouldtellyourbrain,“Letgo!!”Andyougo,“Aaaaaaa!!”Andthejarwouldflythroughtheairandcrashsomewhere .Soit’sbettertoleavethejarthereafterit’shot .

Experiment: “Jelly Jam Jar Jets”

Squirt fuel into jar with pipette.

Gas Treatment

Keep your head off to the side when you light the fuel so it doesn’t burn your face.

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Thisstuffiscalledmethylalcohol .Thisdoesn’tusuallyworkaswellasitdidtoday,maybebecauseit’swarmertoday .We’regoingtotrymethylalcohol,andwe’regoingtotryisopropylalcohol .Thisstuffiscalledrubbingalcohol .Theyputitonpeopletocoolthemoff .Andthisoneispuremethylalcohol .Itdoesn’thaveallthejunkthat’sinthefirstonewetried .We’regoingtoseewhichoneswork .Yougettotaketurns .[Student: Can we light it with a match?]No,becauseyourhandwouldberightthere .Anddidyouhearitgopfoof?Itwouldburnallthehairoffyourfingers .Youhaveagroupwithafairnumberofpeople .Decideamongyourselveswhowantstolightit .

Sowhenyourjarishot,waittotakeitout .Andthenextpersoncanuseacooljar .Haveyoueverpouredwateronahotjar?Itusuallybreaks,becauseifyoucooloffglasstoofast,itcracks .Sowe’regoingtoletthemcoolreallyslow .Thenwe’llgetnewjars .

[Student: Can we make it fly?]It’shardtomakeitfly,becausethejetispointedupwards,soit’sgoingtobepushingdown-wards .It’sprobablynotareallygoodideatohaveflamingflyingglassthings .We’regoingtotrythisstuffuntilitrunsout[indicates gas treatment].There’smaybetwomorejars’worthinthere .[Instructor squirts some gas treatment in the first group’s jar.]Weneedsomeonewithawatercontainer,becausewhereverthere’sfiretherehastobewater .Beforewestart,let’sputsomecupswithwaterout .

[Student: Can we wear earmuffs?]Well,wedon’twantyoutohaveearmuffs,becauseyouwon’thearathing,andifwesaysomething,youwon’thearuseither .Butthenoiselevelisalotlowerthananythingthatcouldeverhurtyourears . [Instructor squirts some fuel in each group’s jar before allow-

ing anyone to start. An Instructor stands by as each group lights their fuel. Overhead lights are turned off. After each group has burned their fuel, jars are allowed to cool, then Instructors remove them and replace them with cool jars.]

Okay,nowwe’regoingtouseisopropylalcohol .[Instructor squirts the liquid into all of the jars, then students light them. Some of them don’t light.]Ifitgetshotenough,itmightwork .Whatyoucandoishavesomeoneinyourgroupthathaswarmhandsdothis[cups his hands around the jar and swirls it around]andyoumightgetittowork .Doyouhavewarmhands?Justholdthejartowarmupthejaralittle .Thisalcoholrequiresmoreheattowork .Ifitdoesn’tlightrightaway,itwon’tlight .

Fuel burning in jar.

Igniting the fuel.

Cup hands around the jar to warm it up.

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[After all groups have finished]Okay,nowwe’regoingtoswitchoffthisfortheyellowstuff,whichismethylalcohol .Isopopylalcoholdoesn’tworkthatwell,butwedidn’twantyoutothinkallfuelswouldworkinthis .[Instructors pass out new jars.]Lasttimeitwasisopropylalcohol .Thisoneismethylalcohol .[Instructor squirts liquid into each jar before students start to light them. This time, the flame shoots straight up when it first lights, but not all of them work.]

[Instructor brings out a balloon pump.]Youhavetodecidewhetherthere’stoomuchairortoomuchfuelinthere .We’lltestthisone .We’regoingtopushsomeairin[inserts nozzle of balloon pump into hole in jar lid and pumps it].Iftherewastoomuchfuelbefore,nowthere’sgoingtobealotless .Trythatandseeifitworks .[Student lights it, and it works.]Ah,toomuchfuelbefore .Nowthat’stherightamount .[The fuel burns for awhile, then there is a loud crack as the jar breaks.]

[After all students have finished burning their fuel, Instructors collect tubs and move chairs back into regular position.]

Using balloon pump to add air to the jar.

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End of Lesson

If y0u have questions about this lesson, please ask them through the online Teacher Support Forum on our web site.

WhenEvilMisterFredwenttotakesomeswisscheesefromtheMoon,hediscoveredallthetreasurehiddenunderneath .Theydidn’tknowthattheKick-Meshadgottenintotheelixirthatthealienshadpro-duced .AndtheKick-Meshadfilledthemselvesupwithalcohol .AndJackandJillwerethinking,“Whatarewegoingtodo?Whatarewegoingtodo?”Andoneofthealienssaid,“Let’sturnoffallthelights,makeitdarkheresonobodycanseewhat’sgoingon .MaybeEvilMisterFredwon’tfindus .”Sotheydid .Theyturnedoffallthelights .

AndtheKick-Meswerelookingaround,andtheycouldn’tseeanythingbecauseitwasdark .EvilMisterFredwashoveringoverthesurfaceonhisvacuumcleaner .OneoftheKick-Meslitacandletoseewhatwasgoingon .Anditaccidentallygottooclosetohismouth .Nextthingyouknow--brrrrrrrr--wehadajet-poweredKick-Me .HewasbouncingaroundinsidetheMoon,goingboing,boing,boing,boing,boing,boing,boing,boing,insidethesecaves .AndtheKick-Mehitaweakspotandshotthrough .AndsomeoftheotherKick-Meslitcandles,too,becausetheythoughtthatwasfun .Andtheyheldthembytheirmouths,andnowyou’vegotKick-Mesgoingboing,boing,boing,boing,boing,boing,boing,boingallovertheplace .Andthey’rekindofflamingasthey’regoing,andthey’regoingbackwardsbecausetheydon’tknowwhat’shappening .Andofcourse,they’relaughingbecausetheylovebeingblownaroundlikethat .

AndEvilMisterFredsawoneoftheKick-Mesflyby .Hesays,“Ohboy!Treasure!”Hewentoverandsuckeditupinhisvacuumcleaner .HewentandsuckedupfiveorsixKick-Mesinhisvacuumcleanerbeforeherealizedthesewererocket-poweredKick-Mes .Andtheybouncedaroundinsidethevacuumcleaner,andEvilMisterFredsaid,“Oh,no!”asthebaggotbigger,andbigger,andbigger .Andthenthebagexploded--ka-boom!!--andblewEvilMisterFredallthewaytoPluto .Andeverybodylivedhappilyeverafter,exceptEvilMisterFred .

End of Story * DO NOT * present this part of the lesson until after the experiments!

The Kick-Mes were bouncing all over.

A Kick-Me flies by Evil Mister Fred.