Contents:

Quick Reference Sheets:• Intro:Flying Wings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page2• Experiment:Puddle Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page3• EquipmentList . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page4• Story,Part1:Jack & Jill in Mudville . . . . . . . . . . . . . . . . . . . . . . . . .page5• Story,Ending . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page6

Video Transcript:• Intro:Flying Wings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page7• Story,Part1:Jack & Jill in Mudville . . . . . . . . . . . . . . . . . . . . . . . . .page9• Experiment:Puddle Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page13• StoryEnding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page15

Teacher’s Guide for:

Puddle JumpersNote: 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.

PuddleJumpersARock-itScienceLessonFilmedOctober2010

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 Puddle Jumpers -- Page 2

Intro Quick Recap:• AguynamedLilyusedtorundownabighillbehindhishouse .Hetiedathinstickontopofhisheadthathelpedhimglideasherandown .

• Heexperimentedwithdifferentshapedsticks,likebirdwings .Theyhadaten-dencytotiltandtwistinsteadofgoingstraight .

• Headdedapieceontoptohelpkeepitfromtwistingandtumbling .

• Onawindyday,hewasabletoglidedownthehillandlandsafely .Butwhenhetrieditagain,thewindstoppedsud-denlyandhefelltohisdeath .

• Lilyhadwrittennotesabouteverythinghedidandsentthemtoalotofotherpeople .

• AcoupleofbrotherswhohadreadLily’snotesexperimentedwithflyingonabeachcalledKittyHawk .

• Theyusedtwowings,oneabovetheother,connectedwithverticalsticksandpulledbyarope .• Tokeepitsteady,theyaddedsomeadditionalwings .Later,theybuiltacompactgasolineengineandinventedpropellers .

• Eventually,theybuiltalaunchrailandsuccessfullyflew .

Lily’s flying wing.

Rock-it Science Teacher’s Guide Puddle Jumpers -- Page 3

• Studentsworkingroupsoftwoorthree .Eachgroupisgivenvarioustypesofhelicoptertoystotryout,oneatatime .

• Thefirstoneisahelicoptertoythatlaunchesplasticringsfromagun-shapedhandlebypullingonastring .

• Thesecondtoylauncheslargerrings .• Thethirdoneisasmallmotorattachedtoa6-voltbat-terywithalligatorclips .Themotorhasanattachmentshapedliketheendofascrewdriver,andtheplasticringsitsonthetip .Studentsleaveonealligatorclipunattachedfromthebatteryandtouchittothecon-tactwhentheywanttolaunchthehelicopter .Afterafewminutes,Instructorpassesoutsomeothersizesofplasticrings .

• Addanother6-voltbatteryandattachitwithanotheralligatorclip .Placetheringonthemotor,thenplaceaplasticcupontopofittoholditinplaceuntilthemo-torstartstospin .Thenpullthecupaway,andtheringfliesoff .

• Thelasttoyisthetraditionalpuddlejumper,apropel-leronastick,whichislaunchedbyrubbingitbetweenthehands .Studentsweargogglestousethisone .

Experiment Quick Recap: “Puddle Jumpers”

First helicopter toy.

Second helicopter toy.

Third helicopter toy. (Extra battery below.)

Plastic cup on top of third toy.

Puddle Jumper.

Items needed for Instructor:

Consumables:

• NoneOther:

• None

Items needed for Students:

Consumables (per student):

• NoneOther (per group of 2 or 3 students):• Varioushelicoptertoys,includingpuddlejumpers• Battery,6-voltlantern,2pergroup• Smallmotor• Insulatedcableswithalligatorclips,24”(3each)• Goggles

Rock-it Science Teacher’s Guide Puddle Jumpers -- Page 4

Equipment List: “Puddle Jumpers”Prep Work:

• None

Other helicopter-type toys.

Puddle Jumper.

Story Recap: “Jack & Jill in Mudville”

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Part 1:

• JackandJilllivedinatownwhereeverythingwasmadeofdirt,calledDirttown .• EvilMisterFredropedacloudandmadeitrainoverDirttowneverydaysoeverythingturnedtomud,sothepeoplerenameditMudville .

• Peoplelearnedtojumpoververylargepuddles,andJackandJillcouldjumpwhilecarryingveryheavyobjects,likearefrigeratororacastironstove .

• TheminonsstartedhittingrocksintoMudvillewiththeirbaseballbats,sothepeoplehadabaseballgameagainsttheminions .Thepeoplelostthegame,andEvilMisterFredwonalltheirmoney .

• Thentheydecidedtohaveapuddlejumpingcontest,sinceJackandJillweresogoodatjumpingpuddles .Theyfilledpuddleswithchocolatepudding .

• EvilMisterFredputspringsontheminions’feetsotheycouldjumpbetter,andtheystartedwin-ning .

• JackandJilldisguisedthemselvesinoldclothesandpretendedtobeunfitforathletics,soEvilMisterFredbetallhismoneyonthecompetition .

• AsJilljumpedoverthelastpuddle,shestartedspinningandcreatedatornadothatsweptupeverythinginthetownexceptJack .

Story Recap (cont.):

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Ending:

• Jackputacoupleofboardsonhishead,jumpedintotheair,andstartedspinningtheoppositewaythatJillwasspinning,sohecreatedananti-tornado .

• Jack’stornadostartedtocanceloutJill’s,sothebuildingsstartedfallingoutoftheskyandre-turnedtotheiroriginalplaces .

• WhenJack’stornadowasinthecenterofJill’s,itwaswobblingsothatsomeplaceshadnowindandothershadwindsoffourhundredmilesanhour .

• EvilMisterFred’scastlegottossedoutofthetornadoatfourhundredmilesperhour,withhimandhisminions,andcrashedintotheSun .

Rock-it Science Teacher’s Guide Puddle Jumpers -- Page 7

Transcript: Intro Onceuponatime,therewasaguywhoselastnamewasLily .It’sreallytoughwhenyou’reaguyandyourlastnameisLily .Sohehadtoprovethathewastough .Andtherewasahillbehindhishouse .SoLilywouldgotothetopofthehillandhe’drundownasfastashecouldandtrynottofalldownandgotumble,tumble,tumble,tumble,fumph,fumph,fumph,fumph,fumphdowntothebottom .Nowonedayhehadthisbrilliantidea,andheduct-tapedabigsticktothetopofhishead .It’skindofathinstick,likethat .Andherandownthehill,andthewindcaughtonthestick,andheglidedforawhile .Andhethought,“Wow,thisisreallygood!”Sohemadebettersticks .Hemadesticksthatlookedlikebirdwings,likethat .Andhe’drundownthehillthatway,andhecouldglideevenfurther .Everytimehe’drundownandjumpupintotheair--wheeee--andcrashatthebottom .Theproblemwasthatthiswingthingheputonhisheadwouldsometimestiltthisway,sometimesitwouldtiltthatway,andweirdlyenough,sometimesitwouldtiltbackwardsorforwards .It’sreallyroughwhenittiltsforwards,becausethenyoudoasomersaultwiththisthingstuckonyou .

Soheputatailonit .There,nowitlookslikeabird .It’sgotatail .Andwhenheputatailonit,itdidn’ttiltbackwardsorforwardsomuch,itwouldonlytiptotherightortheleft .Hethought,“Okay,I’llputonalittletoppiecehere,andmaybeitwon’ttiptotherightorleftsomuch .”Well,itstilltippedtotherightorleft,butitdidn’tturnsobadly .Andthenhehadtodosomegoofystuffwiththebackofthewingtokindofcontrolit .

Butonedaytherewasastrongsteadywindcoming .Hesaid,“Yeah,it’saperfectday!”Heranoutthere,grabbedthisthing,gotsomeropesonit,randownthehillasfastashecould,jumpedintheairandjustglidedaway,hundredsoffeet,andwasabletolandonthegroundsafely .Andhesaid,“Woo-hoo!Thisisreallygood!”andhetoldhisfriendsallaboutit .

Andthenanotherdaycameandthewindwasalmostasgood,andhesaid,“Yeah,I’mgoingtogoflying!”Soherandownthehill,flewintotheair,andthenthewindstopped .Andhethought,“Oh,”andwent“Aaaaaa”--crash!Andunfortunate-ly,hedied,andtheyburiedhim .RestinPeace .Buthewroteallabouteverythinghedidbeforehedied .Hedrewpicturesofeverythingthathetried,andhesenttheseinletterstopeopleallovertheplace .

Andthereweretwoguyswhogotsomeofthecopiesoftheletters .TheWrongBrothers .OrvilleandWilbur .Wilbur’sapig,andOrvilleispopcorn .Andtheystudiedallthisstuff,andtheysaid,“Well,wewanttodowhathedid,butwedon’twanttodie .”Sotheydecidedtogoouttoabeachwheretherewasalwaysacatsittingaround,andtherewasabirdflyingintheair .Andthebirdwasahawk .Sohere’sthe

Lily with sticks on his head.

Lily added a tail.

Lily crashed.

Rock-it Science Teacher’s Guide Puddle Jumpers -- Page 8

beach,here’sthekitty,andthenupintheair,here’sthehawk .Youknowwhattheycalledthebeach?KittyhawkBeach .

Andthewindwasblowingthisway,let’ssay .Andhere’saguy .He’sgothisfeetdugintothesandandhe’shangingontoarope .AndtheropeisattachedtoawingkindoflikeLilyhad .HisrealnamewasOttoLilienthal,bytheway .Hewasarealguy .Andtheydecidedtoputonewingontopofanotherwing,withabunchofsticksbetweenthem .Andtheyhadthiswingthattheycouldfly,andtheydiscoveredthesamethingsthathedid .Youknow,it’shardtomakeitnotgoupanddownandgowham,wham,whamintothesand .Itwashardtomakeitsoitdidn’tgokkrrrrthiswayorkkrrrrthatway,orjustgommmrrrralldifferentdirections .

Sotheyaddedanotherwinginthefront,andtheyaddedtwowingsonthebacklikethat,up-and-down-ways .Andthentheymadeitsotheycouldpullontheropes .Ratherthanjusthavingjustonerope,theymadeitsotheycouldpullonacoupleofropesandcontrolwhatthisthingwasdoing .Thentheyfinallygotitsotheycouldmakeitgoupandstayup .Theycouldmakeitgodownandstaydown .Theycouldmakeitturnthisway,andtheycouldmakeitturnthatway .Andeverythinglookedreallycool .Andtheysaid,“Allright!Let’sgetonitandseeifwecanfly .”

Sooneofthemgotonitandtriedtotakeoffwiththeotherguyholdingtherope .Well,theycouldn’tdoit .Hewastooheavy .Sotheysaid,“Weneedtomakeonebigger .Andweneedmorepower .”Sotheybuilttheirowngasolineengine,areallylightweightgasolineengine .Andtheysaid,“Now,let’sputonpropellers .”Thentheysaidtothemselves,“Whatarepropellers?”becausepropellershadn’tbeeninventedyet .Ofcourse,LeonardodaVincihadmadepropellers,buttheymaynothaveknownaboutthat .

Sotheyinventedsomenicepropellersandtheyputthoseonit,hookedthemuptotheirengine,andthentheybuiltawoodenlaunchingrail .Andthentheyletthisthinggodownthislaunchingrail,andittookoffanditactuallyflew!Andthecatsaid,“Nicegoing!”Andthebirdsaid,“Yeah!”ThiswastheWrightBrothersatKittyhawkinwhat?1903orsomethinglikethat?Well,todaywe’regoingtotrytomakesomestufffly,andwe’regoingtodoiteasywaysandhardways .Butfirstweneedacrazystory .

With extra wings, engines, and propellers.

Experimental wing at Kittyhawk.

Rock-it Science Teacher’s Guide Puddle Jumpers -- Page 9

Story: “Jack & Jill in Mudville”Onceuponatime,therewasdirt .Therewasawholebunchofdirt .Everywhereyoulooked,therewasdirteverywhere .Andsomebodydecidedtobuildacityoutofdirt .Sotheymadeamainstreetoutofdirt .Andthentheymadesomehousesoutofdirt .Theycouldmakesomecarsoutofdirt .Theymadewindowsoutofdirt .Andtheymadeastoreoutofdirt .Theyselldoughnuts,andthedoughnutsweremadeoutofdirt .[Students: Eeeeewww!]Well,ifyouwanttomakeadoughnut,whatdoyouneed?Flour,right?Well,flowersaremadeoutofdirt .[Student: You need a coconut.]Andyeah,therewasacoconutstoremadeoutofdirt,andatepeemadeoutofdirt .Andtherewerepeoplelivingthere .Theydidn’tmindlivingthere .Itwasaprettynicetown .It’scalledDirttown .AndJackandJillwerevisitingthere,andtheylikedthepeoplethere,sotheydecidedtohangaroundforawhile .

AndEvilMisterFredhappenedtobeflyingoverinhisvacuumcleaneroneday,andhesawDirttown .Andhesaid,“Now,there’sanicetown .Lookatthosepoormiserablepeopleoutthereinthedustandthedirt .Lifedoesn’tgetanyworsethanthat .Andthenhesawthattheywerelaughingandplayinganddancing .Andhesaid,“Whatiswrongwiththosecreatures?Aretheyidiotsorwhat?Theylikebeinginthedirt!”Andthesunwouldcomeoutanditwouldgetwaytoohot,buttheydidn’tmind .Theyjustwerehappythere .

Hesaid,“Well,I’llshowthem .”SoEvilMisterFredputaropeonhisvacuumcleanerwithahook,andheflewoff .Alittlewhilelater,hecamebackwithacloud,andheleftthecloudrightoverDirttownandflewaway .Well,ofcourse,nowitstartedtorain .AndsonowtheyhadtorenameitMudville .Andtherainmadebigpuddlesintheroad,itmeltedalotoftheirbuildings,andlifebecamecold,wet,andmiserableinMudville .AndMudvillehadamayor,hisnamewasCasey .Helikedtoplaybaseball .AndthepeopleinMudvillesaid,“Well,eventhoughit’scoldandmiserableandmuddy,we’llmakethebestofit .”Sotheyjustrebuiltuptheirplaces,theyputsomestrawontheroofstohelpkeeptherainoff,andsometimestheywouldneedsomedoughnuts .Sothey’dgotothedoughnutstoreandbuytenortwentypoundsofdoughnuts .They’dneedsomecoconuts,sothey’dbuyfiftyorsixtypoundsofcoconuts .Andtheymightneedsomeotherstuff,andthey’dcarryallthisstuffhome .Well,they’dcometoabigoldpuddle,andifyouwerecarryingthisheavystuffandwalkedintothepuddle,you’dsinkintothepuddleuntilitwasrightuptoyoureyes .Sotheydidn’twalkthroughpuddles,theyjumpedoverthepuddles .

Now,ifyou’recarryingalotofheavystuffandyoujumpoverapuddle,ittakesalotofstrength .Butifyoudothisdayafterdayafterday,thepeoplegotreallystronglegsandarmsfromcarryingstuff .AndJackandJillwerealsodoingthis .Theypracticedcarryingthings .Infact,theywerealittlebitcrazyaboutit .Theyputweightsontheiranklesandtheirwrists,andontopoftheirheads,andjumpedover

Dirttown with coconut and tepee.

Evil Mister Fred hooked a cloud and made it rain on the town, now called Mudville.

Rock-it Science Teacher’s Guide Puddle Jumpers -- Page 10

thepuddles .AndprettysoonJackandJillcouldjumpoverthebiggestpuddles,athirty-foot-longpuddle .Theycouldrunandjumpoveritcarryingsomeoftheseweights .Andthepeopleintownsaid,“Whoa,youguysaregood!?AndJackandJillsaid,“Ah,butwe’regoingtokeepworking .Wewanttogetbetter .”Sotheydid .TheyworkedandworkedandworkedandworkeduntilonedayJillwasabletojumpoverthegiantpuddle,thethirty-footer,carryingarefrigeratoronherhead .[Student: Did it have pizza in it?]Yeah,andithadpizzainit .AndJacksaid,“Whoa,thatwasreallygood!Iwanttotrythat .”ButJackusedacastironstove,andhemadeit .Andeverybodyintownsaid,“Woo-hoo!Youguysaregood!”

Well,EvilMisterFredwasn’tcontentjustwatchingfromupabove .Hedecidedtobuildacastlenearbyjusttoshowoff .Everydayhe’dbringacloudtokeepMudvillemuddy,buthelethiscastlestaydry .Andhisminionswereoutthere .Hiscastleismadeoutofstone .Theminionsareouttherewiththeirbaseballbats,andthey’velearnedtohitrockswithabaseballbat .Throwarockintheairandwhack!--theycouldhittheserocks .AndsotheywerelaunchingrocksatthepeopleinMudville--whack!Here’smoreminionshittingrocks,andthey’rehittingeachother .That’sjustthewaytheyare .Andlet’sputEvilMisterFreduphere .AndEvilMisterFredsaid,“Youknow,weoughttohaveacontestwiththoseguys .Let’shaveabaseballgame .Myminionsaresogoodathittingstuff,we’llbeatthemplayingbaseball .”

SoheranoverthereandtalkedtoCasey .Andhesaid,“Casey,let’shaveabaseballgame .”Andsotheyhadabaseballgame .AndCaseygottobatandwasstruckout,andtheylostthegame .AndthenEvilMisterFredwonfromthetownofMudvilleonemilliondollarsingold .Sohehadthisbigpileofgold .AndpeopleinMudvillewerereallysadaboutthisbecausetheylostamillionbucks .Yeah,andthegoldwasmadeoutofdirt .AndthepeopleinMudvillesaid,“We’vegottowinthatback .JackandJill,whatarewegoingtodotowinthatmoneyback?”JackandJillsaid,“Well,Idon’tknow .”AndthenCaseysaid,“Waitaminute .Youguysaregoodatjumping .Let’shaveacontest .Apuddlejumpingcontest .”

Sotheyorderedabouttentonsofpudding,chocolatepudding,andtheydugholesintheground,andtheyputpuddingintheholes .Andthentheyputboardsnexttoeachhole .Therewasasmallhole,andamediumlengthhole,andalonghole .AndtheyweregoingtochallengeEvilMisterFred’sminionstoapuddlejumpingcontest .Thisisperfectbecauseminionshavenolegs .They’vegotbigfeet .They’rejuststubs .Andtheymadethegigantopuddlethatwaseighthundredfeetlong,likethat .

Jack with weights on wrists and ankles.

Minions with baseball bats.

Pile of gold.

Rock-it Science Teacher’s Guide Puddle Jumpers -- Page 11

AndEvilMisterFredcouldn’tturndownabet .Andtheysaid,“Comeon,we’llhaveacontest .Whoeverjumpsoverthelon-gestpuddlewinsallthemoney .”AndEvilMisterFredsaid,“I’lltakeit!We’llbeatyourguys!”

AndsoEvilMisterFredsaid,“Allright,I’vegottocheathere .”SohecalledtheAcmeStoreofEverything,andheorderedsprings,andhegluedspringstohisminions’feet .Andthenhehadtheminionspracticebouncingaroundlikekanga-roos--boing,boing,boing--andtheycrashedandburnedandhiteverything .Well,afterawhile,theminionscouldbounceclearover--boing--EvilMisterFred’scastle,likethat .AndJackandJillsaid,“Uh,oh .Thoseguyscanreallybounce .”

Well,thedayofthecontestcame,andtheyhadtheminionsbounceoverthefirstpuddle--boink--andwoneasily .Andthentheydidthemedium-sizepuddle--boink!Again,theminionsbeatthepeopleofMudville .Andboink!--theywoninthatone,too .AndeverybodyinMudvillesaid,“Uh,oh .We’regoingtolose .”ThenCaseysaid,“JackandJill,you’reouronlyhope .You’reourstrongestjumpers .Goputonsomeoldtorn-upclotheswithholesinthemandallkindsofnasty-lookingstuffonthem,blackoutsomeofyourteethwithwax,messupyourhairreallygood,andthencomebackout .”

SoJackandJilldid .Theylookedlikehunchbacks .Theyweredrooling,theyweregoing,“Isthisgood?”AndCaseysaid,“Yeah,that’sperfect .”Andthenhesaid,“Okay,EvilMisterFred,we’rereadyforGiganto .AndEvilMisterFredsaid,“Well,where’syourcontestants?”AndEvilMisterFredhadhisbestminionintherestandingonhissprings .AndCaseysaid,“Allright,JackandJill,comeout!”SoJackandJillcameout,limpingandgimpinganddrooling .AndEvilMisterFredsawthemandhesaid,“Thoseareyourcontestants?Theycan’tevenwalk!I’lltriplemybet!Threemillionbucks .Ifyourguysbeatmyguys,I’llpayyouthreemilliondollars .”

AndJackandJillsaid,“Allright .Thisiscool .”AndJillgotselectedtojumpfirst .SoJillhunchedwayback,ranasfastasshecould,andjustbeforesheplantedherfootontheboardtotakeoffoverGiganto,shesaid,“Youknow,I’vebeentakingballetlessons .ItwouldbenicetodoanicepirouettethroughtheairasIgo .”Sowhenshejumped,shestartedtospinthroughtheair .Andasshespun--boing--herhaircreatedagigantictornado .Andhere’sJillinthere,andtheair’sspin-ningaroundher,thehair’sspinningaroundher,twohundredmilesanhour .Andthetornadotookonalifeofitsown .Itstartedtospinlikecrazy,anditsuckedallthepuddingoutofGiganto .Andthenitsuckeduptheotherpuddles,andthen

Puddles for the contest.

Minions on springs.

Jill’s tornado with everything in it.

Rock-it Science Teacher’s Guide Puddle Jumpers -- Page 12

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

We’llleavethis“TobeContinued . . .”

itwentthroughanditsuckedupthetepeeandthecoconutandthedoughnutshopandthehouses .Itsuckedupeverythingontheland,anditsuckedupEvilMisterFredandalltheminions,untileverythingwasgoneexceptJack .Let’sputJackdownhere .Andeverybodywasupinthetornadospinningaround,screamingfortheirlives .Andthere’satepeeinthere,andEvilMisterFred’scastlewasinthere .AndJacksaid,“Oh,no!We’vegottodosomething!Thisisterrible!Everythingisupthere,wayupinthesky,andthey’reallgoingtodie .”IfyouwereJack,whatwouldyoudo?

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Experiment: “Puddle Jumpers”So,thefirstexperimentiseasy .Wehaveregulartoysthatyougetatthe99-centstore .Andthesehavehelicoptersonthem,andtheideaistomakethehelicopterflyandseehowhighyoucanmakeitfly .Now,beingthattheseare99cents,theyusuallylastabouttwoclasses .Sodon’tpulltoohard,becauseifyoukeeppullingafteritgoesthatfar,youendupwithastringinonehandandatoygunintheotherhand .We’llseehowhighthosego .Andthenwe’regoingtocomparethesetoanothervarietythatwehave .Thesearen’ttheKidKillers .TheKidKillersarelast .Andtheseguys,youcanpullthemandseeiftheyfly,andseehowhighthosego .

So,we’regoingtousejustthosetwovarieties,andyou’rego-ingtotradewitheachothertoseehowtheywork .Trytonotflythemthatway[toward shelves],becauseoncetheygothatway,weusuallyneverseethemagainuntiltwoorthreeyearslaterwhenwepullaboxofftheshelfandsay,“Oh,lookitthere--helicopters .”Trytoflythemthisway[towards the whiteboard],andthey’llbounceoffthewallandcomebackdown .

Andofcourse,wealwaysgobytheEvilMisterMac’sRulesofUnfairness .Ifyouwantacertainone,youdon’tgetit .Ifyoudon’twantit,thenyouhavetouseit .

We’regoingtostartoffwiththeseguys .Therearethreeheli-choppersandagunineachone,andthereareafewmoreovertherethatmightstillwork .Soyouguyssharethose[gives one to each group of two students].Yougetextrapointsifyouhurtyourself .

Onceyoulaunchthehelichopper,trytogofindit .[Students take turns launching the small plastic helicopters for a few minutes. Then the Instructor passes out toys that use larger helicopters, and students launch these for a few minutes.]

Let’ssee,let’sgetaboxtoputallthisstuffin .Ifitflies,orlookslikeathingthatmakesthingsfly,putitinthere .Now,lookaround .Ifyouseeahelicopterstuckinsomebody’shair,takeitout .

Nowwe’regoingtousesomesilverthings .Thisisasilverthing .[Student: A Kid Killer?]No,KidKiller’slast .It’sgotaspinnypinkthingontopwithatipthatlookslikeascrewdriver,andit’sgottwogold-colorednubbiesonthebottom .Yeah,it’selectric .Ifwetouchittothepigtailsonthisbox,itmakesnoise .[Touch-es motor to 6-volt battery so it spins.]Now,thisisnotadrill .Becausesomekidsturnitonandthentheytrytodrillintothetable,whichbreaksofftheflatendonit,soitdoesn’tworkanymore .Now,Imightwanttoputsomethingonit,because

First helicopter toy.

Second helicopter toy.

Motor & 6-volt battery.

Rock-it Science Teacher’s Guide Puddle Jumpers -- Page 14

itspins,andit’sfuntoputthingsonthingsthatspin .[Places a small helicopter on the pink tip.]Soitfitsontothatthing,andIcanputthisonit[touches motor to battery],andthereyouhaveaspinninghat .Itlookslikeahat,butitdoesn’tcomeoff .IfIgolikethat[jerks motor slightly],itdoescomeoff .

Now,ifyoudon’twanttohavetoholdithereandtrytomatchitontothose,wehavealligators .Andifyousqueezetheirheads,theirmouthopensandcloses .Ifyousqueezesideways,ithurtstheirears .Andyoucanputthealligatorsonthemotor[attaches alligater clips to motor wires and attaches only one alligator clip to a battery terminal],andnowyou’vegotthishandy-dandyswitch .Youcantouchthealligatoronthere[touches unconnected alligator clip to the remaining battery terminal]anditgoeslikethat[jerks motor and helicopter flies off.]Andtheideaistomakethisthingflyashighasyoucanwithwhatyouhave .Afterawhile,we’llbehandingoutdifferentonesofthese[helicopters],andwe’lljustseehowhighwecanmakethemgo .Soyou’regoingtostayinthesamegroupsandwe’regoingtopassoutbatteriesandwiresandmotorsandpropellers,soyouguyscantrystuffout .[Students assemble the parts and try out the small helicopters. After a few minutes, Instructor passes out some additional heli-copters in different sizes.]Canyoumakeitsothatitdoesn’tfly?

[After a few more minutes]Youknowwhatyou’resupposedtosaynow?You’resupposedtosay,“Morepower!”Okay,togetmorepower,youneedonemorealligatorandanotherbatchofbatteries .Justsoyoudon’tspendalldayworkingthis,I’lltellyouyouneedtomakeitacircle .Youputonebatterythere,andyoulookforred .Redisalwayspositive .Gofromposi-tivetonegative,positivetomotor(whichispositive),tohere .Andnow,twelvevoltsinsteadofsix .Anditmakesabigcircle .Ifyourwiresmakesmoke,yousaytoyourself,“Oh,mywiresaremakingsmoke .Thatmeanstheyarereallyhot,somaybeI’dbettertakethewireoff .”

Sointhiscase,you’regoingtoputonyourpropeller,spinitup,andjustsoyoudon’tgetyourfingerstangledinthings,we’regoingtogiveyouaplasticcup .Andtheideaistohaveonememberofyourgroupholdthebatteryandthepropellerandthecuplikethat .Andthentheothermembertouchesthattothewire .[Uses cup to hold propeller in place while it spins up, then pulls cup away and propeller takes off.]Andseeifyoucantouchtheceiling .Itcanbedone .[Students add second battery and launch propellers with cups for a few minutes.]Trynottobreakthetipoff .Don’tpushtoohard .

[Student: It’s just staying there.]Well,reversethewires .Isthewindblowingupordown?You’reblowingthewindup .Nowit’safan .You’rejustmakingitsoitblowstheairtheoppositeway .

[After several minutes]Time’sup!Everybodydisconnectyourwiresandgosearchforhelicopters .Lookallovertheplaceforhelicopters,andputallthehelicoptersinthehelicopterbox .Putthebatteriesonthebatterycart .

Extra battery connected.

Plastic cup on top of helicopter.

Rock-it Science Teacher’s Guide Puddle Jumpers -- Page 15

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

SoJackistheonlyoneleft .Jillhassuckedupeverythingwiththisincredibletornado .AndJacksays,“IknowwhatI’mgoingtodo .I’mgoingtojumpupintotheair,andI’mgoingtospintheotherway .”SoJackgrabbedacoupleoftheboardsthatwerestillstuckintheground,heldoneineachhand,wentasfastashecould,jumpedintotheair,andstartedspinningintheotherdirectionandcreatedananti-tornado .Jack’splanistosteerhistornadointoJill’stornadoandcancelthewinds .Willthiswork?[Students: No. Yes.]Well,firstwhenhecomesclosertoJill’stornado,hiswindisgoingthisway,herwindisgoingthatway,andtheycancelout,andthingsstarttofalloutofthesky .Thedoughnutshoplandedexactlywhereitwasbefore .Andsodidthecoconutandthetepeeandthehouse .Eventhemudpuddleslandedwheretheywerebefore,andthepuddingwentrightwhereitwassupposedtogo .Andtheboardslandedwheretheyweresupposedtogo .[Student: What about Evil Mis-ter Fred’s castle?]Itdidn’tlandwhereitwassupposedtogo .

AndthenwhenJack’stornadogotrightintothecenterofJill’stornadoandwaswobblingthiswayandthat,insomeplacesitmadenowind,andinotherplacesitmadewindoffour

hundredmilesanhour .AndEvilMisterFred’scastlegottossedoutatfourhundredmilesanhour,withEvilMisterFredonit,andminionsinit .AnditwentzzhhhoooooooandcrashedontheSun .There .BrownSun,madeofdirt .Andtheyalllivedhappilyeverafter,exceptEvilMisterFred .

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

Jack’s reverse tornado.

Evil Mister Fred shot into the Sun.

Nowwe’regoingtogettheKidKillers .ForKidKillersyouneedgoggles .Whenwepasstheseout,justrubtheminyourhandsandkeeprubbingtheminyourhands .Whenyougettiredofrubbingtheminyourhands,thenletgoandseewhattheydo .[Students put on goggles and fool around with Kid Killers (propellers on sticks) for a few minutes, then put them away.]Isn’tthatacooltoy?Anybodybleeding?

Kid Killer (Puddle Jumper).