teacher’s guide for: hovercraft - rock-it...

Contents:

Quick Reference Sheets:• Intro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page2• Experiment,Balloon & Hovercraft Demos . . . . . . . . . . . . . . . . . . . . .page2• Experiment,Build a Hovercraft . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page3• EquipmentList . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page4• Story,Part1:Jack and Jill and the Octomonsters . . . . . . . . . . . . . . .page5• Story,Ending . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page6

Video Transcript:• Intro . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page7• Story,Part1:Jack and Jill and the Octomonsters . . . . . . . . . . . . . . .page8• Experiment,Balloon Demo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page10• Experiment,Hovercraft Demo and Build a Hovercraft . . . . . . . . . . page11• StoryEnding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .page13

Teacher’s Guide for:

HovercraftNote: 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.

HovercraftARock-itScienceLessonFilmedJune,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) 2012 Rock-it Science Educationally Useful Programs. All Rights Reserved

http://www.rockitscience.com/

Rock-it Science Teacher’s Guide Hovercraft --

Intro Quick Recap:• Thereusedtobelotsofbillboardsalongtheroadsides .• Oncetherewasahurricane,andthewindknockedoverthebill-boards .Theystartedflyingthroughtheairandchoppedhousesinhalf .

• Inordertopreventthisfromhappeningagain,billboardswererequiredtowithstandaboutfortythousandpoundsofforce .Thisnumberwasdeterminedbythesquarefootageofthebillboard .

• Airpressurepushingonsomethingcanmakeittipoverorsome-timeshoverabovetheground .

• Ifyoumakeastrongwindblowdownwardswithafan,youcouldliftupheavythings .

40,000 pounds pushing on the billboard.

Experiment Quick Recap:Part 1: Balloon Demo

• Takeafolded-upfoldingtableandplaceitontopofthestudents’table .

• Placesixinflatedballoonsunderit,oneateachcornerattwoatthesides .

• Havefivestudentssitonthefoldingtable,addingonestudentatatime .Seewhetherthepressureoftheairintheballoonswillholdtheirweight .TheInstructorcanalsostandonthetablewiththem .

• Afterwards,havethestudentsreturntotheirseats .Thenhaveoneofthemstepononeofthebal-loonsandbreakit,toshowthatit’sjustanordinaryballoon .

Part 2: Leaf Blower Hovercraft Demo (optional)

• Buildahovercraftfromaplasticchairwitharms,acircularwoodenplatform,andaleafblower .(ContactRock-itScienceforfurtherinfoifyou’reinterestedinmakingone .)

• HaveanassistantdemonstratebysittinginthechairwhiletheInstructorcontrolstheleafblower .Theplatformwilljustbarelyhover,andtheriderneedstokeeptheirweightcenteredsotheplatformwon’tdragontheground .

• Thenleteachstudenttakeaturnridingonthehovercraft .

Five students on the table.

Student on leaf blower hovercraft.


Experiment Quick Recap (cont.):Part 3: Build a Hovercraft

• Instructordemonstrateshowtobuildthehovercraft,thenstu-dentseachbuildone .

• Beginwithaplastictesttubethathasasmallholeinthebottom .• Placean11”balloonovertheroundedendofthetubeandsecureitwithaplastictiewrap .

• PlacetheopenendofthetesttubeintotheholeinthecenterofaCD,centeringitwithasecondtesttubethathasaspringonit .Thiswillkeepthetesttubeverticalsothehovercraftwillbebal-anced .

• ApplyhotglueallaroundtheedgeofthetesttubewhereitmeetstheCD .Thereshouldbenowayforairtoescapearoundtheedgeofthetube .Keepthecenteringtubeinplaceuntilthegluedriescompletely,thenremoveit .

• Insertaballoonpumpintothetesttubeandinflatetheballoon .• Removethepump,placetheCDonthetable,andgiveitalittlepush .Itshouldglideeasilyoverthetable .

• Passouttesttubes,balloons,andtiewraps,andhavestudentsassemblythem .

• ThengivethemtheCDsandcenteringtubes .Thenhavethemapplythehotglue .

• Afterthegluedries,havethemremovethecenteringtubes,in-flatetheirballoons,andtesttheirhovercrafts .

• Eachballoonfulofairwillonlylastabouttenseconds,sostu-dentswillwanttoinflatetheirballoonsseveraltimes,sharingballoonpumpswithotherstudentsifnecessary .

• Ifthefloorissmoothandclean,studentscanalsotryusingtheirhovercraftsonthefloor .

Use balloon pump to inflate.

Balloon, test tubes, tie wrap, & CD.


Equipment List: “Hovercraft”Items needed for Instructor:

• Six-footfoldingtable• Six12”balloons• Adult-sizehovercraftmadewithcircularwood-enplatform,plasticchair,andleafblower

Items needed for Students:

Consumables (per student):

• Testtubewithsmallholedrilledinbottom• 12”balloon• CD• Plastictiewrap• GluesticksOther:

• “Testtubecenterer”(testtubewithspringattached)• Glueguns• Balloonpumps• PermanentMarkers

Prep Work:

• Burnaholeinthebottomofeachtesttube .(SeePrepvideo)

• Attachspringtocenteringtesttubes .• Buildahovercraftchair(optional)

Test tube with a spring on the bottom. This holds the other test tube straight

until the glue dries.

Story Recap: “Jack and Jill and the Octomonsters”


Part 1:

• Jack&Jillarelivingonaflatplanet,floatinginspace,withman-eatingoctopusescirclingit .• Peoplewouldwarntheirchildrennottowalkneartheedgesotheywon’tfalloffandbeeatenbytheoctopuses .Themomwouldthrowasandwichovertheedgesothekidscouldseetheocto-pusescomeoutfromunderneathandeatit .

• EvilMisterFredhadacastleonthisplanet .Hemadeadealwiththeoctomonsterstogettheirgoldinreturnforthrowingpeopleovertheedge .

• JackandJillwerehelpingthepeopleofGoodvilleplantheirOlympicswithlotsofeventsandfencesallaroundtheedgeoftheplanetsonoonewouldfalloff .

• Oneoftheeventswasjugglingbowlingballsonarollercoaster .Thiswasespeciallydifficultbecausesometimestheplanetwouldtiltlikeateeter-totter,andsometimesthewindwouldblowindifferentdirections .

• EvilMisterFredhadhisminionslineupatoneendoftheplanetwiththeirbaseballbats,alongwithEvilMisterFredinhisbulldozer .Theminionsweregoingtohiteveryonewiththeirbase-ballbatsanddrivethemtotheedge,andEvilMisterFredwouldpushthemoffwithhisbull-dozer .

Story Recap (cont.): “Jack and Jill and the Octomonsters”


Ending (same illustration, no additional drawing):

• JackandJillrealizedwhatEvilMisterFredwasgoingtodo,sotheywantedtowarnpeople .• JilltoldJacktoyellreallyloud,buthisvoicewasn’tloudenough,sonooneheardhim .• Jilltoldhimtotryagain,andwhenhestartedtoyell,shepulledhisunderpantssoheyelledre-allyloud .

• WhenpeopleheardJackyell,theypanickedandstartedrunningaround .• Theyranintothelocalrestaurantandgrabbedpancakes .Theylaidfacedownonthepancakes,blewaholethroughthemiddleofthem,andcreatedsomuchairunderthemthattheywerenowhoveringaroundonthepancakes .

• Thentheplanetstartedtotiltjustasthewindchangeddirection,andthepeopleontheirpancakesstartedtofallintowardEvilMisterFred .

• Theyhitthebulldozerandpushedthebulldozerandminionsovertheedge .Atthatmoment,theplanettiltedbackagain,sonooneelsewentover .

• TheoctopusmonstersateEvilMisterFredandalltheminions .


Transcript: Introduction Intheolddays,ifyouwenttodriveanywhere,alongtheroadstherewerecows,andfields,andfarms,andsomethingcalledbillboards .Theyweren’tBobBoards,theywereBillBoards .Thebillboardswereadvertisementsforeatingatrestaurants,orgoingWinchesterMysteryHouse,oranythinglikethat .Hugesignslikethis,stuckonacoupleofpoles .Andtheroadwouldcomebylikethat .Therewasn’tjustonebillboard,therewerethousandsofbillboards .Everyyouwenttherewerebillboards .Thereweresomanybillboards,theyhadtomakealawthatsays,“Youdon’tgettoputanymorebillboardsup .”Youcouldn’tevenseethetreesandthefarmsbecausetherewerebillboardseverywhere .

Onetimetherewasabigwindstorm,ahurricanecamealong .Andabunchofthebillboardsfellover .Andtheystartedflyingthroughtheair .Bighugerectanglesofflyingsteel,andtheychoppedhousesrightinhalf .Andtheysaid,“We’vegottodosomethingtomakesurethesebillboardsdon’tfalloverandkillpeople .”Andtheymadesomerules .

Theysaid,“Counthowmanysquarefeetthereareonyourbillboard .”Asquarefootwastwelveinchesbytwelveinches .“Andthenmultiplythattimesabouttwohundred .”Reallyonehundredforty-four .“Andthenmultiplythattimesone .Andyouendupwiththishugenumber .Inotherwords,ifyoucountedthesquarefeetonabillboard,theremightbe,oh,say,twohundredsquarefeet .Andthenyoumultiplythattimestwohun-dred .Doyouknowhowtomultiplybyhundreds?Yeah,it’seasy,youjustkeepaddingzeroes .Twohundredtimestwohundredisafour,withfourzeroes .Whatthatmeantwas,there’sfortythousandpoundspushingonyourbillboard .Andtheywouldtestittoseeifyourbillboardcouldholdfortythousandpounds .Well,aneasywaytodothatistoattachatanktoitandpull .Ifthebillboarddidn’tfalloverwithfortythousandpoundsonit,youcouldkeepit .Ifitdidn’t,youhadtomakeitstronger .

Andthefortythousandpoundscamefromwind--airpressurepushingonsomethingandtipitrightover,orinothercases,itcanmakeithoverabovetheground .Ifyoutookastrongwindandyoublewitdownwardswithafan,youcouldliftupheavythingsinthesameway .Ifyouhavesomethingthesizeofabillboardwithabigfanonit,youcouldpickuphugeamountsofweight .We’regoingtotrythatlatertoday .Butfirst,weneedacrazystory .

Billboard.

Billboards chopped houses in half.

A big fan could lift a lot of weight.

40,000 pounds of air pressure pushing on the bilboard


Story: “Jack and Jill and the Octomonsters”Onceuponatime,JackandJillwerelivingonaplanetthatwasflat .Here’saplanetthat’sflat,andit’sfloatinginspace .Andthere’spurplestarsallaroundit .Andcirclingallaroundtheplanettherewereman-eatingoctopuses .Man-eatingoctopuseswithlotsofarms .Andtheyhaveteeth .There--man-eatingoctopuses .Andeverybodythatlivedontheplanet,whentheyhadchildren,they’dtelltheirchildren,“Whateveryoudo,don’twalktooclosetotheedge,becauseifyoudo,andyoufalloff,you’llbeeatenbyhugeoctopuses .”Andthekidssaid,“Oh,Mom,you’rekidding .There’snosuchthingashugeoctopuses .”Sothemomwouldtakethekidsovertotheedge,andshewouldbringacheesesand-wich .Andshesaid,“Nowyoustayrightnearthisedge .I’mgoingtothrowthischeesesandwichover,andyoujustwatch .”Andshe’dthrowthecheesesandwichover,andnextthingyouknow,rightoutfromundertheedge--“Harrumfff!!”Thisoctopuswouldeatthecheesesandwichandgobackundertheedge .Andthekidswouldgo“Huuunnhhh!!”Andthey’dsay,“Oh,boy,we’renotgoingtogonearthatedge .”

AndEvilMisterFredlivedupheretoo .He’sgotacastle .Andofcourse,it’shisjobtomakepeoplemiserable .Andsohefigured,“I’mgoingtomakeadealwiththosemonsters .I’mgoingtoseewhatthey’lldoformeifIthrowpeopleovertheedge .”Becausehe’sevil .SoEvilMisterFredwenttotheedge,andhesaid,“Heyyymonsters!Youdownthere?”Andthemonsterssaid,“No!”Andhesaid,“Okay,I’llcomebacklater .”Becausehe’snottoobright .Andthenlater,hecamebackandsaid,“Heyyymonsters!Youdownthere?”Andtheysaid,“What’sittoyou?”

AndEvilMisterFredsaid,“I’llfeedyoupeopleifyou’lldosomethingforme .”Andthemonstersays,“Oh!Cool!Lotsofpeople?”AndEvilMisterFredsaid,“Yeah!Lotsofpeople .”Andhesaid,“Whatcanyoudoforme,though?”Andthemonstersaid,“Well,wedon’thavemuch .Allwehavedownhereisgoldanddiamonds,andyouprobablydon’twantthat .”AndEvilMisterFredsaid,“Oooh!Goldanddiamonds?Yeah,Idowantthat .”Andhesays,“Howmuchareyougo-ingtogivemeforeachpersonIthrowover?”Andtheysaid,“Oh,howaboutthatperson’sweightingold?Soifit’saheavyperson,yougetlotsofgold .Ifit’salightperson,notsomuchgold .”AndEvilMisterFredsaid,“Yeah,Ilikethis!”

SoEvilMisterFredbeganmakingaplan .JackandJillarelivinghereinGoodville .Andthey’replanninganOlympics .Andtheywanttohaveanolympicsthathasfunthings .Likerollercoasterrides .There’sarollercoasterolympics,andtheobjectiveoftherollercoasterolympicsisto

Flat planet with octopus.

Man-eating octomonster.

Evil Mister Fred on his castle.

Roller coaster for olympics.


jugglebowlingballswhileyou’reridingontherollercoaster,andnotdropthebowlingballs .Anotheroneistherainbowdash .You’vegottorunovertherainbow .Andtheyhadpolevaulting,andtheyhadthrow-ingsmallcarsacrosstheplace .Theyhadthegrandmatoss,whereyou’dpickagrandmaandthrowherasfarasyoucan .Allkindsofneatfungames .Andtheyputfencesallaroundthewholeplanetsothatnobodywouldfalloff .

AndEvilMisterFredsaid,“Ihaveaplan .I’mgoingtomessuptheirfencesandI’mgoingtoputoilalloverthegroundsothatthey’llslipovertheedge .”Theretheygo--there’sfencesallthewayaround .

AndJackandJillstartedtheirgreatcontest .Everybodycametotheolympics,theywerewatchingit,therewastvcoverage,therewasblog-gingcoverage,therewasinternetcoverageofeverysort .Andtheyhadthejugglingontherollercoaster,andpeopleweretryingtojugglebowl-ingballsonarollercoaster .Andastheycamearoundturns,whooahh!Thebowlingballswouldshootoffthiswayorthatway .Youhadtobereallygoodtojuggleabowlingballonarollercoaster .Anditwasalsocompoundedbecausesometimestheentireplanetwouldstarttotiltoneway,andthenitwouldtiltanotherway,likeateeter-totter .Andtherewasastrongwind .Sometimesthewindwouldblowoneway,andsome-timesthewindwouldblowtheotherway .Ofcourse,thisallworkedinEvilMisterFred’sfavor .

Andhesaid,“Minions,I’vegotanidea .Let’sformalinehereatthetop,ofminions .AndwhenIsaygo,you’regoingtograbyourbaseballbatsandrunasfastasyoucan,hitanybodyyoufind,anddrivethemalltowardtheotherend .Andthenthey’regoingtogetsoscared,they’regoingtofallofftheedge .AndI’llgetgoldforeveryonethatfallsofftheedge .”Andhesaid,“Don’tworry,I’llberightbehindyouinmybull-dozer .”Youknowwhatabulldozeris?It’sabigthinglikeatankwithabladeonit,anditpushesearth .Hugebulldozer,likethat .

Andso,JackandJilljusthappenedtonoticealltheminionstherewiththeirbaseballbatsandthebulldozer,andtheysaid,“Thisdoesn’tlookgood .”IfyouwereJackandJill,whatwouldyoudo?

The rainbow dash.

Fences were built all around.

The planet tilts one way and then the other.

Evil Mister Fred’s buldozer.

Imagination and Brainstorming Time[Students make suggestions](THEREARENOWRONGANSWERS!Whatevertheysay,youshouldreply:“That’sagoodidea,”“Theymightdothat,”etc .Afterbrainstorming,proceedwiththeexperiments,thenfinishthestory .)We’llleavethis“TobeContinued . . .”


Experiment:Part 1: Balloon Demo

Ourfirstballoonisgoingtogounderthiscorner[placesballoonundercorneroffolded-uptable],thesecondballoonunderthatcorner .Now,there’stwoballoons,andtheyhaven’tpopped .Hmm .Let’sputbal-loonsundertheotherend .[Places two balloons under opposite end of table.]Ooh,theydidn’tpopyet .[Places balloons under the middle of the table.][Student],climbonthetable .Nowstandup,walkaroundtotheotherside .And[Student]isgoingtositonthetable .Sitanywayyoulike .[Student sits on the folded-up table which is being supported by balloons underneath.]Sitdown,makeyourselfcomfortable .

Okay,weneedavolunteerfromtheaudience .[Instructor selects four more students, who sit, one after another, until there are five students seated on the table.]Sofartheyhaven’tpopped .[Instructor stands on the table, with the students.]Okay,nowwe’vegotfivekids,andoneMr .Mac,allonthesametable .[Instructor steps off the table, then directs the students to get off, one at a time, first those in the middle, then those on the ends.]Thatjustshowsyouhowstrongairpressurecanbe .

Doyousupposethesearesuperballoons,thatthesearen’tordinarybal-loons?Weshouldtestoneandseeifit’sreallyasuperballoonornotasuperballoon .Soweneedsomebodytosteponit .[Places a balloon on the table while a student steps on it. It pops.]

Balloonspopwithjustalittlebitofpressureinthem,butthereweresomanyballoonsundertherethattheysmooshedwayout--didyouseehowskinnytheygot?Andeventhatlittlebitofpressurewasabletoholdallthosepeopleupwithoutpoppingtheballoons .Andsomebodythatdidthatexperimentsaid,“Yeah,thisisgreat .Let’strysomethingelse .”

Five students on the table.

Putting balloons under the table.

Mister Mac also stood on the table.

Popping the balloon.


Part 2: Leaf Blower Demo

So,ifyoutakealeafblower . . .[Demonstrates leaf blower hovercraft, with assistant sitting on it. With just a small push, it glides across the floor.]Ifyouwanttotrywhatit’slike,formalinebehindJen .YoumayhavenoticedthatJenhadtobalanceherself .Ifyouleanbacktoofar,thebackedgecatchesanditwon’tfloat .Ifyouleanforwardtoofar,thefrontedgecatchesanditwon’tfloat .Youhavetokindofbalancearoundandseewhereyourweightneedstobetomakeitfloat .[Students take turns sitting on the hovercraft while the staff push it back and forth.]Okay,that’safairlysimplehovercraft .

Part 3: Build a Hovercraft

We’regoingtomakehovercraft .Tomakeahovercraft,youneedatesttubewithaholeinit .Idon’tknowifyoucanseeit,butthere’salittletinyholeinthebottom .Usuallyscientistsputliquidinit .We’regoingtoputballoonsonit .AndIputaballoononthetesttube .

Thenwe’regoingtoputhandcuffsontheballoon .They’retiewraps .Thetiewrapisaplasticthingthathasgroovesonit .Ifyourunyourfingernailoveritandlisten,youcanhearit .Thegroovysidehasafingerthatcatchesontheminsidethathead .Soifyouputhistailinhismouthandpullonhistail,theballoonisnowtightonthetesttube .

Now,hovercraftusuallyhaveaflatcircle .AndoneofthebestthingsforaflatcircleisoldCDs .Adiscbyitselfwillfloatprettygood,becausethey’reflat,butitdoesn’thoverlikeahovercraftdoes .Weneedtoblowairunderit .Sowe’regoingtogluethetesttubeontop,andwhenyoublowuptheballoon,youblowairdown,andthiswillhoveracrossthetable .

Theonlyproblemis,it’shardtogetthetesttubeexactlycenteredonthehole .Sowemadeatesttubecenterer .Here’satesttubecenterermadeoutofanothertesttube .It’sgotaspringonit .YouputthatoneunderneathyourCD,andyoutakeyourballoonyoneandyoujamitontop .Now,it’ssittingonthere .It’ssprungagainstthis,andit’sallcenteredperfectly .

Wejusthavetoputglueontheedgebelowtheballoon .Wehavetouseenoughgluesothatnoaircanleakouthere .[Picks up glue gun.]Wewouldgosquirt,squirt,squirt,squirt .Justsquirtgluearound

Student on leafblower hovercraft.

Secure the balloon with a tie wrap.

Push test tube onto centerer.

Place the centerer under the CD.


there,andtwistitasyougo,andwhentheglueishard--ofcourse,ittakesahundredyearsforthegluetogethard .Youcanmakespiderwebsonitwhileyou’rewaiting,oryoucancolorthetopofit .Youcanalsowritesomethingonthere .Youcandecorateitanywayyouwant .

Now,weneedsomewaytopuffitup .[Holds up balloon pump.]Here’sapuffer .Itpufferspuffswhenyoupulloutandpuffswhenyoupushin .Iftheglueishardenough,justsetitonthereandpuffitup .Ifyouhavehandsattachedtoyourarms,putyourhandsunderthetableandseeifthere’sanygumunderthere .Ifyoufindit,youcanhaveit .[While students’ hands are out of the way under the table, Instructor sends hov-ercraft gliding across the table.]Andnowwehaveahovercraft .Now,we’regoingtomakeourtablesmootherwithatablesmoothifier .[Lays a large sheet of smooth cardboard on top of the table.]

Sothefirstthingyouallneedisatesttube .Then,pickaballoon .[Sup-plies are passed out and students build hovercraft, testing them on the tabletop and on the floor.]

Use balloon pump to inflate.

Give the hovercraft a little push and it glides across the table.

Glue around edge of tube.


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

EvilMisterFredhasmadeanevilplantothrowpeopleofftheedgeoftheplanetandletthemgeteatenupbytheoctomonsters .Andhegetstheirweightingoldforeveryonethatgoesovertheedge .He’sriggeduparollercoastertothrowpeopleofftheedge .He’smovedtherain-bowsothatthefinish--theending--isovertheedge .Everythingisriggedsothatpeoplearegoingtofallover .AndJackandJillbecomeawareofhisevilplan,buttheyhavetotelleverybodyinthewholeplanet .AndJillsays,“Jack,you’vegottowarnthem .Dosomething!”AndJacksaid,“WhatcouldIpossiblydo?”AndJillsaid,“Yell,reallyloud .”AndJacksaid,“Okay .[in a very soft voice]Everybodywatchout .”Andtheydidn’thearhim .SoJillsaid,“Okay,Jack,I’llhelp .”Andwhenhestartedtoyell,shepulledonhisunderpants,andhewent[very loudly],“Everybodylookout!!!”Andthisjustpanickedallthepeopleontheplanet .Andeverybodywasrunningaround,andtheyallwenttothelocalrestaurantandgrabbedpancakes .Andthentheyputthepan-cakesontheground,laidfacedownonthem,andblewaholethroughthemiddleoftheirpancakes .Andtheycreatedsomuchairunderthepancakes,allthepeoplewerenowhoveringaroundonpancakes .Anditjusthappenedatthatveryinstantthewindchangeddirection,andtheplanettiltedthatway,andallthepancakehoverpeoplestartedtofallinthatdirection .Millionsandmillionsofhoverpancakepeople .Andtheycamedownandhitthebulldozerandalltheminions .Andtherewassomuchforcethere,thebulldozerhittheminionsandpushedtheminionsandthebulldozerandEvilMisterFredovertheedge .Andatthatveryinstant,theplanettiltedbackagain,andeverybodyelsewassaved .Andtheoctopusmonstersatethemallup--theminionsandEvilMisterFredandthebulldozerandtheirbaseballbats .AndtheyalllivedhappilyeverafterexceptEvilMisterFred .

End of Lesson

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

Jack yelled, “Everybody look out!!”

The bulldozer hit the minions, and they all went over the edge.

Evil Mister Fred rigged the roller coaster to throw people off.

The planet tilted, and everything started to slide.

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teacher’s guide for: hovercraft - rock-it...

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