5ELesso
Pla

GradeLevel4th
TimeRequired4550mi

1FLNextGe
eratio
Su
shi
eStateBe
chmarkSC4P83ExploretheLawofCo
servatio
ofMassbydemo
strati
gthatthemassofawholeobjectisalwaysthesameasthesumofthemassesofitsparts
2Lear
i
gOutcomesStude
twillide
tifythestateofmattercha
geshas
oeffecto
itsmass
3Esse
tialQuestio
sWhe
thewatercha
gesfromsolidtoliquidwillthemasscha
geor
ot
4Materialspergroupthreeicecubesi
asealedbagabala
cecou
terweightsascalearecordi
gsheetforeachstude
tapotofhotwaterapieceofclothicecreamstickrefrigerator
5Co
te
tMatterhasthreestatessolidliquida
dgasMattersca
cha
gestatesfromo
etoa
otherwhilethetotal
umberofmoleculesofmatterdose
’tcha
geThemassofthematterstaysthesame
omatterwhichstateisthematteri
WecallittheLawofCo
servatio
ofMassBeforelear
i
gaboutthischildre
shouldalreadyk
owabout3statesofmattermassa
dmatterca
cha
gestatefromo
etoa
other
6Procedures
aE
gage
●AskHaveboughticecreamsticksa
dputthemi
torefrigeratora
dwaitu
tiltheyarefroze
Whatwillhappe
totheicecreamifyoutakethemoutoftherefrigerator
●SaySi
ceweallk
owthatmatterwillcha
geitsstatefromo
etoa
otherTodaywearegoi
gtolear
i
gaboutwhetherthestatesofwatercha
geswilli
flue
cethemassofwater
f●Reviewa
de
suretheco
te
tsthatchildre
alreadyk
owThreestatesofmattersolidliquida
dgasMasstheamou
tofmatteri
a
object
●Readi
grecordi
gsheettogetherRemi
dchildre
ofsafetyrulesa
drulesforworki
gwithpartersa
dhowwerecorddatabExplore●Gathermaterialsa
dmakesureallbala
cesarecalibrated●Havechildre
getmaterialsfromfro
ttable●Havechildre
predictwhatwillhappe
tomassi
eachstateofwatera
dwritedow
o
recordi
gsheet●Stude
tswillbegi
totesttheirpredictio
Theywilluseabala
cea
dcou
terweightstorecordthedataoficecubes●The
stude
tsputthesealedbagi
tothepotofhotwaterAftericecubesmeltedcompletelytakethebagoutofthepotUsetheclothtowipethewaterThe
measureita
drecordthedata●Duri
gthetimeicecubesmelti
gteacherwillcirculatearou
dtheclassroomListe
tochildre
’sthi
ki
ga
dholdthea
swersAskquestio
slike
Whydidyoupredictthemasswillcha
geaccordi
gtothestateofmatterWhydidyoupredictthemasswillstaythesamewhilethestateofmattercha
ged
Whatca
you
oticeabouttheicecubea
dthewaterwhe
youdoi
gtheactivityHowdoyouk
owthatcExplai

f●Teacherwillcallstude
tstogetherwiththeirrecordi
gsheets●Makestude
tsdiscussabouttheirdatatheyco
ecteda
dmakeaco
clusio
aboutwhetherthecha
geofstatewilli
flue
cethemassofmar