10. ice lanterns - girlstartgirlstart.org/wp-content/uploads/2017/12/10.-ice-lanterns.pdfice...
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IceLanternsTakeadvantageofthecoldweatherbymakingbeautifulicelanternsthatwillbesuretolightupanyroomorsidewalkthisholidayseason!Observewater’suniquepropertiesasyoucreateyourlanterns.Enjoytheicy
glowbeforethetemperaturesstarttorise.TEKS:SCI1.5BPredictandidentifychangesinmaterialscausedbyheatingandcooling,suchasicemelting,waterfreezing,andwaterevaporating.SCI2.5BComparechangesinmaterialscausedbyheatingandcooling.SCI2.5CDemonstratethatthingscanbedonetomaterialstochangetheirphysicalproperties,suchascutting,folding,sanding,andmelting.SCI2.6AInvestigatetheeffectsonanobjectbyincreasingordecreasingamountsoflight,heat,andsoundenergy,suchashowthecolorofanobjectappearsdifferentindimmerlightorhowheatmeltsbutter.SCI3.5CPredict,observe,andrecordchangesinthestateofmattercausedbyheatingorcooling.Materials:
• Acupofrocks,pebbles,beans,oranyothersmallobjectstoactasweights• Batteryoperatedtealightcandle• Decorativepieces(e.g.pompoms,pipecleaners,beads,glitter)• Foodcoloring• Freezer(orjustplaceyourlanternoutsideifthetemperatureisbelowzero!)• Largeplasticcup• Smallplasticcup• Tape• Water
HowTo:1. Gatherallofyourdecorativeandcraftpieces.2. Takeyourlargeplasticcupandarrangeyourpipecleanersanddecorationssotheyarearoundthe
insidewallsofthecup.Youmightwanttostartwithtwistingapipecleanersoitspiralsuptheinsidewallofthecup.Yourotherdecorationsshouldbalanceonthepipecleaner“garland”thatyoujustcreated.
3. Onceallofyourdecorationsareinplace,takethesmallplasticcupandputitinsidethelargecup.4. Usingtape,securethesmallcupintoplacesothatthetopsofbothcupsarelevelwitheachother.
Usuallyaboutfourpiecesoftapeshoulddothetrick.5. Slowlyaddwatersothatitfillsbetweenthetwocups,makingsurethatwateronlygetsintothelarger
cup.6. Aswaterisadded,thesmallercupwillwanttopopup,soaddsomeweight,suchasstones,pebbles,or
uncookedbeans,tokeepitinplace.7. Continueaddingwateruntilitreachesacouplecentimetersfromthetop.8. Addfoodcoloringtothewaterforanaddedlayerofdecoration.9. Transferthecupsintothefreezerforseveralhoursoruntilcompletelyfrozen.10. Onceitiscompletelyfrozen,carefullyremovethesmallercupandthenthelargerone.Apairof
scissorsmightbeneededtomakeasmallsnipintheplasticcupstohelpremovethemwhilekeepingthelanternintact.
11. Insertabatteryoperatedtealightcandleandenjoyyouricelantern!
STEMExplanation:Waterhasuniquepropertiesthathavepeakedtheinterestsofmanyscientistsandstudentsforyears.Thewatermoleculeexistsatthreedifferentphysicalstates:asolid,aliquid,andagas.Atlowenoughtemperatures,32°F,liquidwaterwillfreezeandbecomeice.Waterisoneofthefewmaterialsthatexpandswhenitfreezes.Youcanseethisexpansionwhenyoucheckonyouricelanternafterseveralhours.Eventhoughyousecuredthesmallcupinsideofyourlargercupthatwasfilledwithwater,thesmallcupwashigherandtheicefrozetothebrimofthecup.Waterexpandswhenitfreezesbecausethewatermoleculescrystallizeintoarigidlatticestructure.CareerConnection:HydrologistsareinterestedinstudyinglargebodiesofwateraswellasresearchingthedistributionandcirculationofwateracrosstheEarth.Theyalsospendtheirtimestudyingthedifferentphysicalpropertiesofwaterthatcanbefoundonthesurfacelevelaswellasunderground.Hydrologistsmightworkcloselywithmeteorologistsorenvironmentalscientiststobetterpreservetheenvironment.Resource:https://www.steampoweredfamily.com/activities/engineering-ice-lantern-stem-activity/