Contents: Quick Reference Sheets:

• Intro: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page2• Experiment#1:Build a Zoob Tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page3• Experiment#2:Decibel Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page3• EquipmentList . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page4• Story,Part1:Minions on Trampolines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page5• Story,Ending . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page6

Video Transcript:• Intro: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page7• Story,Part1:Minions on Trampolines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page9• Experiment#1:Build a Zoob Tube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page12• Experiment#2:Decibel Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page14• Story,Ending . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page16

Teacher’s Guide for:

Zoob TubesNote: 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.

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

Rock-it Science Teacher’s Guide Zoob Tubes -- Page 2

Intro Quick Recap:• Supposeyou’restandingonacliff,blindfolded,andyoucanhearabunchofrattlesnakescomingtowardyou .

• You’vegotnoplacetogo,soyouneedtoscareawaytherattle-snakes .Yousay,“Boo!”buttherattlesnakesaren’tscared .

• Askstudentsforsuggestionstoscarethesnakes .• Ontheoppositecliff,there’sabunchofcreatureslivinginholesintherocks .Nomatterwhatyousay,theyrepeatit .

• Ifyousay,“I’mgoingtodie!”youhear[softly]“I’mgoingtodie . . .die . . .die . . .die .”

• Youmakerattlesnakesounds,andthecreaturesrepeatthesounds .Thismakestherattlesnakesignoreyouandflyovertotheotherclifftofindtheotherrattlesnakes .

• Youcangetechoesfromanysolidsurfacewithouttreesorbushes .

• AttheExploratoriuminSanFrancisco,there’sabigcardboardtubeaboutahundredfeetlong .Youcanputyourfaceatoneendandhearyourvoiceecho .

There’s a bunch of rattlesnakes coming toward you.

The repeaters live in holes in the opposite cliff.

Rock-it Science Teacher’s Guide Zoob Tubes -- Page 3

Experiment #1 Quick Recap: “Build a Zoob Tube”• Instructorhasapairofplasticcupsconnectedbyastring .Eachstudenttakesaturnlisteningthroughthecup .

• Instructordemonstrateshowtoconnectapairofcupsbyaspring .

• Useathumbtacktopokeaholeinthebottomofeachcup .• Stickoneendofthespringthroughacupanddribbleablobofhotglueintothecuptoholdthespringinplace .Puttheotherendofthespringthoughtheothercup,butDONOTglueitinplace .

• Passoutcups,springs,andthumbtacksandletstudentsassemblethem .

• Studentsexperimenttalkingandlisteningthroughtheircups .• Instructordemonstrateshowtowrapapieceofindexaroundacylindertomakeatube .Useplentyofmaskingtapetoholdthetubetogether .

• Detachtheun-gluedendofthespringfromoneofthecups .• Withthespringhangingdownfromthecup,placethecupontothetopendofthecardboardtubeandtapeitintoplace .Reachintothetube,grabtheotherendofthespring,andpullitthrough .

• Attachtheendofthespringtothesecondcup,placethesecondcupontotheotherendofthetube,andtapeitintoplace .Addablobofhotglueinthesecondcuptoholdthespringinplace .

• Studentspracticemakingnoisesbyshakingtheirtubes .• Warnstudentsnottoshakethetubewhenthey’reinthecarwiththeirparents,becauseitcoulddistractthemfromtheirdriving .

Experiment #2 Quick Recap: “Sound Level Meter”• Useasoundlevelmetertoshowstudentshowdifferentlevelsofsoundregisteronit .• Rockconcertsaresupposedtokeepitbelow105decibels .• Havethestudentsmakea“shhhh”sound,raisingandloweringyourhandwhenyouwantthemtogetlouderorsofter,andtellthenwhattheirsoundlevelis .

• Repeatthisusingaloudersound,suchas“hubba,hubba,hubba,”toreachhigherdecibels .

• Keepsettingthemetertohigherlevelstoseehowloudthestu-dent’svoiceshavetogetinordertoregisteronthemeter .(Theirmaximumwillbeabout110decibels .)

• Shakeazoobtubenearthemetertoshowstudentsthatitregis-tersabout126decibels .

• Cautionstudentsnottoputthezoobtube’scupnexttoanyone’searandshakeit,becauseit’stooloud .

A finished Zoob Tube.

The red needle on the sound meter measures loudness in decibels.

Rock-it Science Teacher’s Guide Zoob Tubes -- Page 4

Equipment List: “Zoob Tubes”Items needed for Instructor:

• SoundLevelMeter• Othersuppliesaresameasstudentsupplies .

Items needed for Students:

Consumables (per student):

• Two16-oz .PlasticCups• 4”Flexiblespring(fromRock-itScience)• ThinCardboardorHeavyIndexStock,approx .12”x18”• MaskingTapeOther:

• Plasticorhardcardboardcylinder,approx12”x2”(forshapingtubes)

• PushpinorThumbtack• Scissors• PermanentMarkers

Prep Work:

• Cutspringto4”lengths .• Useplierstobendtheendsofthespringsothey’reslightlyopen .

• Cutcardboardtoapprox .12”x18”(weusedplacemats) .

Spring attached to cup Sound Level Meter

Story Recap: “Minions on Trampolines”

Rock-it Science Teacher’s Guide Zoob Tubes -- Page 5

Part 1:

• EvilMisterFredwonderedwhattodowithhisminions .Theywererunningaround,fightingandscreaming,andhewantedsomepeaceandquiet .Hecouldn’tgivethemweaponstoplaywithbecausethey’djustpokeholesineachotherandcuteachotherintopieces .

• HeorderedabunchoftrampolinesfromtheAcmeStoreofEverything .Theminionslovedit--jumpingaroundtwoorthreeatatime,fightinginmid-air,knockingeachotheroff .

• JackandJillwerelivingintepees .JilltoldJackthatshewashesherhairwithanInfiniteHairWashsponge .Shejustgetsitstarted,anditgoesoffbyitselfandwashesallthehair .

• Jackwantedtotryit,butinsteadofsoap,hegrabbedstarch .SoafterJill’shairwaswashedanddried,itwasallstiffandspringy .

• EvilMisterFredputwheelsandmotorsonthetrampolines,andhecouldcontrolthemwitharadiocontroller .HesenttheminionsoutonthetrampolinestoattackPoorCitythatnight .When-eversomeonecameout,theminionswouldhitthemontheheadwiththeirbaseballbats .

• ThepeoplecalledJackandJill,whotriedtobarricadethestreets,butthetrampolinesblastedrightthroughthem .

• Thentheydugholesateachintersection .Thetrampolinesfellin,buttheybouncedrightbackoutagain .

Story Recap (cont.)

Rock-it Science Teacher’s Guide Zoob Tubes -- Page 6

Ending:

• JackandJillbuiltwallsaroundthetown,butthetrampolinesjumpedrightoverthewalls .Theycrashedthroughthebarricadesandbouncedoutofthedeepholes .

• JackandJilltooktwotepeesandlaidthemontheirsides .ThentheytooksomeofJill’sstarchedhairandstretcheditbetweenthetwotepeesandhookedthemtogether .

• Whentheminionscame,Jackhelduponetepeeoverhishead,pointingittowardtheminions .Jillgrabbedtheothertepee,lifteditup,andthrewitdown .Thismadeherspringyhairslamintothegroundreallyhard,soitmadeasoundthatwas250decibels .

• ThismadeahugeshockwavethatblastedtheminionsbackagainstEvilMisterFred’scastle .• Thecastlestartedtocrack,soJackandJillhititwithanotherblast,anditcrumbledintoahugepileofrubble,withEvilMisterFredunderneath .

Rock-it Science Teacher’s Guide Zoob Tubes -- Page 7

Transcript: IntroSupposethatyou’restandingonacliff .That’syou,standingonacliff .Andlet’ssupposeyou’reblindfolded .You’reonacliff,you’reblindfold-ed,andlet’ssee,whatelse?Therecanbeabunchofrattlesnakescomingatyou .Andyouknowtheserattlesnakesarecoming .Youcanhearthemslipping,youcanheartheirrattlesgoing,“Rrrrrrrrr .”Andyousay,“Oh,no!Icansensethatthere’sacliffhere!”becauseyoucanfeelthatyou’reontheedgeofacliff .Andyousay,“I’vegottoscarethoserattlesnakesaway .”Soyouturnaroundandyougo,“Boo!”Andtherattlesnakesgo,“Rrrrrrrrr--youcan’tscareus .”Whatwouldyoudo?Howwouldyouscareawayawholeherdofrattlesnakes?

[Students make suggestions. THERE ARE NO WRONG ANSWERS! Whatever they say, you should reply: “That’s a good idea,” “They might do that,” etc.]

Well,supposethatontheothersideofthecliffthere’sabunchofcrea-tureslivingthere .Andtheyaren’tverysmartcreatures .They’relivingintherocks .Andthesekindofcreatures,nomatterwhatyousaytothem,theysayitback .Theyrepeatit .They’recalledrepeaters .Andtheydon’tjustsayitonce,theysayitseveraltimes .Soyou’reonthecliff,youknowthesnakesarecoming,andyougo,“Ahhhh,I’mgoingtodie!”Andyouhear[softly],“Ahhhh,I’mgoingtodie!I’mgoingtodie!I’m

goingtodie!I’mgoingtodie!I’mgoingtodie! . . .”

Andyousay,“Waitaminute!Where’dthatcomefrom?”“[softly] . . .from,from,from,from . . .”

“Whosaidthat?”“[softly] . . .that,that,that,that . . .”

“Whatareyouguysdoingoverthere?”“[softly] . . .there,there,there,there . . .”

Andyousay,“Ooh,thisisprettycool .There’sechocreaturesoverthere,repeaters!”Andyousay,“Ssssssssss .”Andthelittlecreaturesontheothercliffwent,“Sssssss .”

Andthenyouwent“Rrrrrrrrrr .”Andtheyallwent“Rrrrrrrrr .”

Thosearerattlesnakesounds .Andwhentherattlesnakescametothecliff,insteadofbitingyou,theyalljumpedofftryingtogettotheothersidewheretheyheardalltheserattlesnakesounds .Sonowyouhavefly-ingrattlesnakes .

Suppose you’re standing on a cliff.

And you’re blindfolded.

There’s a bunch of rattlesnakes coming toward you.

The repeaters live in holes in the opposite cliff.

Rock-it Science Teacher’s Guide Zoob Tubes -- Page 8

[Student]Dotheyhavewings?

Sure .Flyingrattlesnakes .There .

Haveyoueveninvestigatedhowechoeswork?Doechoesworkgoodoffoftrees?No,youcan’tgetagoodechooffoftrees .Yeah,theyworkgoodonmountains .Whereelse?Caves,yeah .Anytimeyouhaveanicesurfacethat’ssolidwithouttreesorbushes,youcangetechoesoffofit .Youcandoitoutonthebuildingsouthere .Youcanyellloud,andyoucanheartheechoesonthebuildings .

There’sotherwaystomakeechoes .IfyougototheExploratoriuminSanFrancisco,there’sabigtubethere .It’sabigcardboardtube,andit’saboutahundredfeetlong .Youcanputyourfacerightattheendofthecardboardtubeandsay,“Hello!!”Andyou’llhearitecho([softly]echo,echo,echo,echo)insideofthetube .Itworksbestiftheendisclosedofflikethat .

Welltodaywe’regoingtotrytomakeechoes .Butwe’renotgoingtobeusingtubes .Andwe’renotgo-ingtobeusingflatwalls .We’regoingtobeusingsomethingelse .Inordertounderstandhowitworks,yougettoplaywithitandexplorehowitworks .Butfirstweneedacrazystory .

The rattlesnakes want to fly over to where the repeaters

are making noises.

Rock-it Science Teacher’s Guide Zoob Tubes -- Page 9

Onceuponatime,EvilMisterFredwasthinkingwhathewasgoingtodowithallhisminions .Theminionskeptrunningaround,hittingeachother,fighting,screaming,yelling,andcausingallkindsofcommotion,andhewantedsomepeaceandquiet .

Sohe’sgothiscastleoutthere,andthenoisyminionsaredownbelow .AndEvilMisterFredknowsthatifhegivestheminionscertainweap-onstoplaywith,they’lljustkilleachother .Buttheyalwaysgetgluedbacktogetheragain .Minions,ifyougivethembowsandarrows,theyshooteachotherwiththearrows,andnowyou’vegotminionswithar-rowsstuckinthem,andyou’vegottopullthearrowsoutandpluguptheholes .Ifyougivethemspears,theypokeeachotherwiththespears .Ifyougivethemswords,theycuteachotherinpieceswiththeswords,andthenuseCrazyGluetoputthembacktogetheragain .Theonlythingthatreallyworksgoodisthatyougivethembaseballbats,becausemin-ionshaveveryhardheads,andtheycan’thurteachotherwithbaseballbats .

SoEvilMisterFredsaid,“Ihaveanidea .”SohecalledtheAcmeStoreofEverything .TheAcmeStoreofEveythingexistsonthetopofMountEverest .Andtheyhearanythingyousay .Andifyousay,“Oh,IwishIhadaMercedesBenzcarthat’sworthamilliondollars,”thenpoof!--rightthereinfrontofyou,you’dhaveamillion-dollarMercedesBenz .

EvilMisterFredsaid,“Iwantabunchoftrampolines .”Andthetrampo-linesshowedupinstantly .Andhedidn’thavetosayanythingafterthat .Whentheminionssawthetrampolines,theyjumpedonthemandstartedbouncingaround--boing,boing,boing!Andyougettwoorthreemin-ionsonthesametrampoline,they’refightinginmid-air .Andthemin-ionswouldknockeachotheroffthetrampolinesandlandontheirheads .Andthisdoesn’thurtthematall .Therewereminionsbouncingallovertheplace,andhethought,“Well,that’snotsobad .Atleastthey’reoutofsight .”Hekeptmovingthetrampolinesfartherandfartherfromthecastlesohecouldgetsomepeaceandquiet .

Sowhilehe’sbusydoingthat,JackandJillarelivingintepeesoverhere .

[Student]What’stepees?

Tepees?Conicalhousesmadeoutof,usuallyleatherandsticks .Andthere’sJack,andthere’sJillwithherlonghair .

Story: “Minions on Trampolines”

Evil Mister Fred on his castle.

Evil Mister Fred’s trampoline.

If you give bows and arrows to minions, they’ll shoot each other.

The minions started bouncing off the trampolines.

AndJacksaid,“Jill,youknowthatlonghairisaproblem,isn’tit?Howdoyouwashallthathair?”AndJillsaid,“Well,Ijuststarthereandcon-tinueuntilIreachtheotherend .”AndJacksaid,“ButJill,it’sinfinitelylong .You’llnevergettotheotherend .”AndJillsaid,“Yeah,butIhaveasponge .It’scalledTheInfiniteHairWashSponge .AndwhenIuseit,Ijustgetitstarted,anditgoesoffallbyitself .Anditgoesfwooom!--andwashesallthehair .”

AndJacksaid,“Really?That’sprettycool .Ilikethat .”Hesays,“CanIstartit?”Jillsaid,“Sure .”SoshegavethespongetoJack .Jacksaid,“Don’tgoaway .I’vejustgottoputsomesoaponit .”SoJackraninsideofhistepeeandhereachedforthesoap,butinsteadofsoaphegotstarch .Starchmakesthingsstiff .JackputstarchonthespongeandhestarteditonJill’shair,andthespongewentfwooooo--infinitelyfast,andwashedallofJill’shairwithstarch .Atfirst,youdon’tknowwhatstarchdoes .Butwhenitdries,itgetsrealstiff .AndJill’shairbecamereallystiffandspringy,andnowwherevershewalked,she’dhearthissprong!sprong!sprong!sprong!behindherbecauseherhairwasallstarchy .

AndEvilMisterFredhadhisminionsbouncingoverthereandhesaid,“Youknow,thattrampolineisagoodidea .”SohecalledtheAcmeStoreofEverythingandheorderedsomewheels .Andheputwheelsonit .Thenheputamotoronit .Nowhehadamotorizedtrampoline .Andheputhisminionsonthere,andhecouldhavethisthingzoomaroundandtheminionswouldflyoffinalldirections .Andhesaid,“Ilikethatidea--minionsflyingoffofmotorizedtrampolines .I’llmakeawholearmyoftrampolines .”

Sohehadawholebunchoftrampolineswithminionsandbaseballbats,andhehadaradiocontrollersothathecouldcontrolthesetrampolines .Andhesaid,“Now,I’mgoingtosendthesetrampolineminioncartsouttoattacksomepoorcity .”Andthecity’snamewasPoorCity .

“Theminionswillgozoomingdownthestreetsintheirtrampolines,they’llbounceoffandbanganybodytheyseeontheheadwiththeirbaseballbats,andgivethemabumpontheirhead .Andthenthey’llhavetodowhateverItellthemorthey’llgetbumpedontheheadagain .”

AndthepeopleinPoorCityhadnoideawhatwasgoingtohappen .Andthatnight,herecameallthetrampolines .Andtheminionswentdownthestreets,andanybodythatwasoutonthestreetgotbonkedonthehead .AndEvilMisterFredsaid,“Yeah,thisisgreat!”Andtheyallraninsideandtheyclosedtheirdoors .Andthentheycalledtherescuers--JackandJill .Andtheysaid,“JackandJill,we’reunderattack!Traveling

Rock-it Science Teacher’s Guide Zoob Tubes -- Page 10

Jill’s Infinite Hair Wash Sponge washes her infinitely long hair.

Jack & Jill are living in tepees.

Evil Mister Fred put wheels and a motor on the trampoline.

Evil Mister Fred can remotely control the trampolines with a radio controller.

Rock-it Science Teacher’s Guide Zoob Tubes -- Page 11

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

Andwe’regoingtoleavethis“Tobecontinued . . .”

trampolineswithminionsarebangingeverybodyonthehead .”AndJackandJillsaid,“We’llberightthere .”

SoJackandJillrantothecity,andtheysawtheminionszoomingaroundonthetrampolines .Andtheywonderedhowtheywerebeingcontrolled .Theycouldn’tseeEvilMisterFredatall .Theysaid,“We’vegottostoptheseguys .We’vegottoscarethemaway .We’vegottodis-couragethem .”

Sotheyfirstputbarricadesonthestreets .Theypiledupfurniture,cars,cats,rats,bats,elephants,anythingtheycouldputintopiles .Butwhenthetrampolinescame,theyranintothepiles--rrrrccch .Thetrampolinesweresopowerful,theyblastedrightthroughthepilesofstuff .

JackandJillsaid,“Okay,thatdidn’twork .We’lldigholesinthegroundandthey’llfalldowntheholes .”Sotheydugdeepholesateveryin-tersection .AndthetrampolinescamerightalongandfellrightintotheholesjustasJackandJillplanned .Buttheybouncedrightbackoutagain .AndJackandJillsaid,“Ohh,man,thatdidn’twork!Whatarewegoingtodo?”

IfyouwereJackandJill,whatwouldyoudotostoptheseeviltrampo-lineguysfromattackingyourcity?

The people in Poor City didn’t know what was coming.

Barricades in the streets wouldn’t stop the minions’ trampolines.

The minions came to Poor City on their trampolines.

Deep holes wouldn’t stop them, either.

Rock-it Science Teacher’s Guide Zoob Tubes -- Page 12

Experiment #1: “Build a Zoob Tube”Whatwe’regoingtodoforthefirstpartoftheexperimentisattachsomespringstocupsandseewhattheydo .

[Instructor lets students listen through 2 cups connected by a string.]

Nowwe’regoingtomakeacup .Insteadofastring,we’regoingtouseaspringbetweenthetwoendsandseewhatthatsoundslike .

Tomakethespringssticktothecups,weneedtopokealittleholeinthecup .Sowejustpokethethumbtackinandthenpullitout .Andthenwestickthespringinthere,andthespring--itkindofstays,butnottoomuch .Andwe’llglueitin .Westickitintheotherone .Now,ifyouputtheminwithnoglue,theycanspringbackandthewirescanpokeaholeinyourbody .Sowedon’twanttodothat .Wewanttoputsomeglueontheinside .Seethespringinthere?Now,weonlywanttoglueoneend,becauseinaminutewe’regoingtoaddsomethingbetweenthem .Sowejustdribblesomeglueinside .Canyouseethedribble?It’slikeyou’redrooling .You’regoingtodroolinside .

Nowtheotherside,wehavetobealittlecarefulofit .Theotherendyou’renotgoingtoglue .Ifitspringsawayfromyou,it’llspringtowardyourhand--it’llbeokay .Andyou’regoingtoyellintoitandseeifitdoesanything .[Yells into cup]“Hello,anybodyinthere?”Andseeifanythinghappens .

Weneedtobeabletotaketheotherendoff,becauselaterwe’regoingtoaddapapertubetoit .Andyoucan’tgetcupsintothepapertubeiftheystaytogether .Okay,sofirstwe’llgiveyoutwocupsandaspring .Watchoutfortheends--theycanbesharp .

[Instructor passes out cups, spring, and thumbtack. Students punch holes in cups, attach spring, and add hot glue.]Afterit’sglued,youhavetositthereandwaitforittodryforahundredyears .Whileyou’rewaitingforthegluetogethard,youcanwritesomethingonyourcupso

youknowwhichoneisyours .

[Students experiment by talking and listening with their cups.]

Okay,readyforthenextpart?Now,you’regoingtomakeatube .Butyou’renotgoingtomakeitoutofaplastictubebecausethatwouldbewaytooeasy .You’regoingtowrapapieceofcardboardonyourplas-tictube .Youcanwrapitwiththewhiteinsideorthewhiteoutside--itdoesn’tmatter .Wrapitsoit’slong .Wrapitaroundthere .Nowyou’ve

Poke one end of the spring through the hole.

Use a pushpin to make a hole in the bottom of the cup.

Dribble some hot glue into the cup to secure the spring in place.

Wrap the cardboard around the cylinder to make a tube.

Rock-it Science Teacher’s Guide Zoob Tubes -- Page 13

gotatube,right?Ofcourse,whenyouletgo[cardboard springs open]it’snotatubeanymore .Soyou’vegottotapeit .

Soyougrabarolloftapeandyouhavesomeready .Youcanstickitonyourearorsomethinguntilyouneedit .Thenyouwrapthecoardboardaroundthetube,thenyougrabyourtapeandyouwrapitaround .[Wraps around tube at middle.]Andyoutakethisandyouuselotsoftape .Youcanuseasmuchtapeasyouwantto,[wraps tape around tube near ends.]untilyouhavesomethingthatlookstube-shaped .Whenyouhaveatube-shapedthing,youtaketheplastictubeout,andnowyouhaveatube .

Now,thisissomethingyouguyscandobutIcan’tdoverywell .You’regoingtoputonecupinthereandtakesometapeandtapeiton .Theproblemis,thespringiswayatthebottomoftheskinnytube .It’sintheresomewhere .Myhanddoesn’tfitinthere,soIcan’tgetitout .Maybeoneofyourhandsissmallenoughtofitinthere .[To student]Reachupthereandseeifyoucanreachitwithyourhand .Wow,yourwholearminthere .[Student reaches into open end of tube and pulls out end of spring, which is attached to cup at the other end.] Oh, lookit -- okay.

Onceyouhavethespringout,thenyouputitthroughtheholeinyourothercup .Ifyouaccidentallyletgoofthespring,itgoesbackin .Thenyouhavetohave[student]takethembackoutagainforyou .Andthen,beforeyoutapeiton,Iusually--well,youcanglueitbeforeyoutapeitorafteryoutapeit .Trytobecarefulwithit .I’mgoingtotapeitfirst .Sometimesitfallsoutwhileyouretapingit,andthenyouhavetotakeitapart .Andthenyougettodroolmoreglue .

Whenyou’redone,you’vegotthiswonderfulthing .It’scalledaCarCrashMaker .Becausewhenyourmomisdrivingyouhome,youholditbehindyourheadandgo[shakes tube, which makes a loud noise]. Andshegoes,“Aaaaaahhhh!”Nothighlyrecommended .

Wrap masking tape around the cardboard tube to hold it in place.

Pull cylinder out of cardboard tube.

Detach the spring from the unglued cup and drop the end

into the tube.

Reach into the tube and pull out the other end of the spring.

Attach the cup to the tube with masking tape.

Rock-it Science Teacher’s Guide Zoob Tubes -- Page 14

[Instructor passes out cardboard, plastic tubes, and masking tape. Students as-semble tubes and attach them to cups. Then they practice making noise with them.]

Reattach the spring to the second cup, tape it to the other end of the tube, and dribble in some hot glue

to hold it in place.

A finished Zoob Tube.

Ifyoucansittherequietly,youcanholdyourgun .Thisisasoundlevelmeter .Ifyougotoarockconcert,they’resupposedtokeepthesoundlevelbelow105decibels .Thiswillmeasureanythingfromsixtyuptoonehundredandtwenty .Andwe’regoingtotrymakingdifferentsoundlevels .It’ssetatsixtyrightnow .There’saredneedleinthere,andI’mgoingtowalkaroundandletyouseetheneedle .Don’tmakeanynoise .Iftheneedlemovesclearovertotheedge,you’reabovesixty .Ifit’srightinthecenter,you’rerightatsixty .SoasIwalkaround,justlookattheneedleandseewhereitis .Don’tshakeyourthingatit,becauseit’stoosensitiveforthat .Justlookatit .Seewhatsixtydecibelsislike .Ifyou’redoingamovie,theytrytokeepsoundlevelsatcertainplaces .

Now,setyoursoundmakersonthetable .Now,supposewe’reatamov-ieandit’sHarryPotter,andthere’sabigsnakecomingtowardeveryone,andwewanttoscarethesnakeaway .Soyou’reallgoingtogo“Shh-hhh .”IfImovemyhanduplikethis,yougo“shhhh”louder;ifImovemyhanddown,yougo“shhhh”quieter .Okay,we’regoingtotrytomakeseventydecibels .Okay,everybodygo“shhhh .”[Students go “shhh,” while Instructor raises and lowers his hand until the correct level is reached.]Rightthere,it’saboutseventy .

Now,we’regoingtogotoahawaiianscene,andyou’regoingtobegoing,“hubbahubbahubbahubbahubba .”IfImovemyhandup,yougo“hubbahubba”louder;ifImovemyhanddown,yougo“hubbahubba”quieter .Okay,thisisgoingtobeeightydecibelsof“hubbahubba .”So,okay,go“hubbahubba .”[Students go “hubba hubba,” while Instructor raises and lowers his hand until the correct level is reached.]Rightthere,thatwaseightydecibels .

Experiment #2: “Decibel Levels”

The red needle on the sound meter measures loudness in decibels.

Rock-it Science Teacher’s Guide Zoob Tubes -- Page 15

Now,we’regoingtodoaninetydecibel“hubbahubba .”Areyouready?Okay,ninetydecibelsof“hub-bahubba,”ready,go .[Students go “hubba hubba,” while Instructor raises and lowers his hand until the correct level is reached.]That’sit--that’sninetydecibelsof“hubbahubba .”Ifyouhadtolistentoninetydecibelsof“hubbahubba”allday,you’dhaveaheadache .

Now,we’regoingtodoahundreddecibelsof“hubbahubba .”Areyouready?Okay,go .[Students yell “hubba hubba.”]Thatwasahundreddecibelsof“hubbahubba .”

Now,we’regoingtodoahundredtendecibelsof“hubbahubba .”Areyouready?Okay,go .[Students yell “hubba hubba” very loudly, but the needle remains on the left side of the scale.]Notevenclose .Thistime,insteadof“hubbahubba,”you’rejustgoingtoyell .Let’syell,“Pizzapie!”reallyloud .Ready,getset,go![Students yell “Pizza pie!” but the needle still doesn’t move past the left edge of the scale.]Notevenclose .You’vegottogetlouder--thisisahundredandtendecibels .Areyouready?Topofyourlungs .Ready,getset,go![Students scream.]Perfect!Thatwasahundredandtendecibels .

Now,we’regoingforahundredandtwenty .Thisisgoingtotakesomeconcentration .You’regoingtoyell“Pizzapie”asloudasyoupossiblycan .I’mgoingtopointitalittleclosertowardyou .Ready,getset,go![Students yell as loud as they can.]Didn’tevenmaketheneedlewiggle .

Sometimesatconcerts,theyturnthespeakersuptoahundredandtwenty .Afterahundredandtwentydecibels,yougohomeandyourearsareringing,andyoucan’thearthingsverywell .

Now,hereisashaky-shakything[picks up one of the Zoob Tubes]. Don’tshakeyoursyet,leaveyoursthere .Setthemdown .I’mgoingtoputthedecibelmeterrightwhereyourearwouldbeifyouhelditoveryourear[puts decibel meter in one of the cups],andshakeit .Thatwasahundredandtwenty-sixdecibels .So,imaginesome-bodyscreamingasloudastheypossiblycan,rightinyourear .That’swhathappensrightinhere[points to cup].Sodon’tputthisagainstanybody’searandshakeit,be-causeit’stooloud .Nowyouneedtotakeyourtubes,putthemawayoverthere,andcomebackandwe’llfinishthestory .

Measuring the decibel level from a Zoob Tube.

Rock-it Science Teacher’s Guide Zoob Tubes -- Page 16

SoJackandJillaretryingtofigureoutawaytostopthoseminionsfromgoingintoPoorvilleandbonkingeverybodyonthehead .They’regoingalongontheirtrampolines,bouncingallovertheplace,saying,“Here’soneforyou(bonk)!Here’soneforyou(bonk)!Everybody’srunningaroundgoing,“No,stop,pleasedon’t!”Andtheycan’tstopthem .

SoJackandJillsaid,“First,let’sputsomewallsaroundthetown .”Sotheybuiltwallsaroundthetown .Buttheyjumpedrightoverthewalls,theybouncedtheirtrampolinesstaightoverthewalls .Andtheysaid,“Oh,thatdidn’twork .”Sotheydugsomedeepholes,hopingthattheywouldfallintothedeepholes .Buttheybouncedrightoutofthedeepholes .Thentheystartedputtingbarricadesatallthestreetcorners .Andtheyjustcrashedrightthroughthebarricades .

AndJackandJillsaid,“Whatarewegoingtodo?Everythingwe’vetrieddoesn’twork .”AndJacksaid,“Hmmmm .Ihaveanidea .Ithinkweneedacoupleoftepeeshere .”Jillsaid,“Okay .Wait,IthinkIknowwhatyou’rethinkingabout .”

Sotheytookonetepeeandtheylaiditonitsside,likethat .Andtheytookanothertepeeoverhereandputitouthereandlaiditonitsside,likethat .AndJillsaid,“Youneedsomescissors,don’tyou?”AndJacksaid,“Yeah,thisisgoingtobegreat!”

SotheytooksomeofJill’shairthathadbeenstarched .Remembertheystarchedherhair?AndtheyputJill’sstarchedhairinthistepee,downtothattepee,andhookedthemup .Andthen,theywaitedforthenextday,andalloftheguyscameout,alloftheminionscameoutontheirtram-polines,headingfortownagain .AndJackandJillsaid,“Yeah,we’regoingtogetthem .”Jillsays,“Iwanttodoit--it’smyhair,Igettodoit .”Jacksaid,“Okay .”

SoJackwasholdingthisoneouthereoverhishead,andJillgrabbedtheothertepeebackhere .Andshepickedthetepeeupoffthegroundandshewentke-rash!Andsheslammedthisspringypartofherhairagainstthegroundreallyhard .Anditmadeasoundcomingoutofherethatwastwohundredandfiftydecibels .Anditjustblastedtheminionsbackwards .Itwasahuge,hugeshock,andtheycameandhitthecastle--crash,crash,crash,crash,crashintothecastle .Somanyminionshitthecastlethatitstartedtocrack,likethat .Butitdidn’tfalldown .

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

Jack & Jill built a wall around the city, but it didn’t keep

the minions out.

Then they laid two tepees on their sides.

The connected the tepees with Jill’s starched curly hair.

Jack held up one end pointed toward the minions

while Jill slammed the springy part against the ground.

Rock-it Science Teacher’s Guide Zoob Tubes -- Page 17

End of Lesson

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

AndJacksaid,“Jill,Ithinkweneedjustonemore .”AndJillsaid,“Yeah!”Sosheslammedthespringdownontheground,anotherhugeblast,andthecastlecametumblingdownintoahugepileofrubble,withEvilMisterFredinside .Allyousawwasalittlebitofmustachestickingouthereandalittlebitstickingoutthere .Andtheyalllivedhappilyeverafter,exceptEvilMisterFred .

The minions hit the castle so hard it started to crack.

Another blast made the castle crumble, leaving just a

moustache sticking out.