Labelspw

NameDatePeriod_____Score_____/25CorrectedbyIsAnythingAliveinHereObservationLabEvidenceforlivingornonlivingIncludedrawingswithascaletoshowsizeChangesobservedafter10minutesIncludedrawingsshowingchanges.
Changesobservedafter24hoursIncludedrawingsshowingchanges.
Changesobservedafter______Includedrawingsshowingchanges.
EvidenceforlivingornonlivingABCDE.
DirectionSheet:IsAnythingAliveinHereMaterialsforeachgroup5Plasticvialswithcaps1Vialholder6Labels1Cottonball5Bagsofunknownmaterials,labeledA–EPart1:PreparethevialsLabelthevials"A"through"E.
"Putyourgroupnumberoneachlabel.
Labelthevialholderwiththedate,yourgroupnumber,theperiod,andthenumberoftheliquidyouhavebeenassigned.
PullthecottonballapartandplacethehalvesintovialsAandD.
Part2:ProvidetheliquidenvironmentAddtheliquidassignedtoyourgrouptothebottlesasfollows:VialA:3fulldroppersofliquid(not3drops)VialB:30mlofliquidVialC:30mlofliquidVialD:3fulldroppersofliquid(not3drops)VialE:30mlofliquidPart3:AddtheunknownmaterialsCaution!
Becarefulnottomixthesamplesortouchthemwithyourfingers.
Thismayaffecttheirsurvivaliftheyarelivingorganisms.
1.
Carefullymeasure1minispoonofmaterialsBandE,and8–10grainsofCintotheirappropriatevials.
Capandgentlyswirlthevials;donotshakethem.
2.
Sprinkle1minispoonofmaterialAand8–10grainsofmaterialDontothedampcottonandcapthevials.
3.
Placethevialsinthevialholderandreturnallothermaterialstothematerialsstation.
4.
Afterapproximately10minutesrecordanychangesyouobserveontheObservationsheet.
Alsomakedrawingstoshowthesechanges.