7th grade core idea: ps1 matter and its interactions
TRANSCRIPT
SeventhGrade:Science 7thGrade
CoreIdea:PS1MatterandItsInteractions
PrerequisiteLearning:K.PS1.1-3,3.PS1.1-3,5.PS1.1-4 PercentofTime:18%(4weeks)
StandardandLearningTarget PhenomenaPromptsandEssentialQuestions
Vocabulary
TeacherBackgroundKnowledge/Clarificat
ionStatement
7.PS1.1Developandusemodelstoillustratethestructureofatoms,includingthesubatomicparticleswiththeirrelativepositionsandcharges.ComponentIdea:StructureandPropertiesofMatterLearningTargets:
● Understandthatanatomisthesmallestunitofnon-livingthings● Identifythesubatomicparticlesofanatom,theirlocation,andtheir
charges● Modeldifferentelementsfromtheperiodictable,demonstratingthe
correctnumberofprotons,neutrons,andelectronsCrosscuttingConcepts:
● StructureandFunctions-Studentsbegintoattributeatomicstructureandinteractionsbetweenparticlestothepropertiesofamaterial.
Practices:
● Developingandusingmodels- Studentscreatemodelswhichareresponsiveandincorporatefeaturesthatarenotvisibleinthenaturalworld,buthaveimplicationsonthebehaviorofthemodeledsystemsandcanidentifylimitationsoftheirmodels.
Phenomena:Askstudentstodrawwhattheparticlesinanobject(i.e.desk,plant)looklikeattheatomiclevel.ShowthemstaticelectricitywithstripsofaplasticbagQuestions:Whatisanatom?Whatsubstructuresarepresentinatoms?
atomsubatomicparticleprotonneutronelectronelectroncloudnucleusatomicnumberatomicmassmatter
Ultimately,understandingofthesub-structureofatomswillallowChemistryIstudentstounderstandcausesforintermolecularattractionsaswellasbondingandtheimplicationsofthesephenomena.Infifthgrade,studentsobservedsomeofthesephenomenaincludingdissolvingsolidsandphasechanges.Thisseventhgradestandardactsastheintermediatepointbetweenwhatstudentshavealreadyseen,andtheexplanationsthatcanoccurwhenthisfoundationissetinplace.RelevanthistoricalmodelsincludeThomson’splumpuddingmodeltoexplainthebehaviorofelectronsandionformationandtheworkofRutherfordandBohrtoexplainnuclear
SeventhGrade:ScienceWhatfunctiondoeseachstructurehaveinanatom?Whatistherelationshipbetweenthestructureanditsfunction?Describetheorganizationofsubstructuresandhowthespatialrelationshipmattersforbehaviorandfunction.
developmentsandstructuresdescriptionsofisotopes.Observationsofstaticchargeattractionsbetweeninvisibletape,paper,andfoilpresentanopportunityforstudentstoemployThomson’smodel.(Electronconfigurationsarebeyondthescopeofthisstandardandgradelevel.)
7.PS1.2 Compareandcontrastelementalmoleculesandcompoundmolecules.ComponentIdea:StructureandPropertiesofMatterLearningTargets:
● Defineelementandprovideexamplesofeachfromtheperiodictableofelements
● Defineanddifferentiatebetweenmonoatomicanddiatomicelements● Dissectthepartsofachemicalformula(symbol,subscripts)andwhatthey
represent● Understandthatelementsmaybepure,ormorethanoneelementmay
bebondedtogether● Differentiatebetweenmoleculesandcompoundsbasedontheirchemical
formulas(TiebacktoPS1.1)
Phenomena:Oxygenwebreathevs.CarbondioxideweexhaleNoticingdifferencebetweenhydrogenperoxide,water,oxygen,hydrogenQuestions:Howdoyou
elementperiodictablemoleculecompoundsubscriptelementsymboldiatomicmonoatomic
This standard may be the first instance where students begin to investigate chemical formulae and supports 7.PS1.3 and 7.PS1.4. Emphasis should include definitions of both monoatomic elements existing as atoms as well as diatomic elements which form true molecules. Students should also be able to differentiate between molecules of a diatomic element and compound molecules.
SeventhGrade:ScienceCrosscuttingConcepts:
● Scale,Proportion,andQuantity-Studentsdevelopmodelstoinvestigatescalesthatarebeyondnormalexperiences.
Practices:
● Analyzingandinterpretingdata-Studentsformexplanationsusingsources(includingstudent-developedinvestigations)whichshowcomprehensionofparsimony,utilizequantitativeandqualitativemodelstomakepredictions,andcansupportorcauserevisionsofaparticularconclusion.
classifymatterbasedonitscomposition?Whatwouldthediatomicandmonoatomicdiagramslooklike?Howareelements,compounds,andmoleculesrelated?Howaretheydifferent?Howarethepropertiesofacompounddifferentfromthepropertiesoftheelementsthatformthecompound?
atoms
SeventhGrade:Science7.PS1.3Classifymatteraspuresubstancesormixturesbasedoncomposition.
ComponentIdea:StructureandPropertiesofMatterLearningTargets:
● Differentiatebetweenpuresubstancesandmixtures● Analyzethechemicalcompositionofpuresubstancesvs.mixtures● Analyzethephysicalcharacteristicsofpuresubstancesvs.mixtures
CrosscuttingConcepts:
● Pattern- Studentsrecognize,classify,andrecordpatternsformacroscopicphenomenabasedonmicroscopicstructure.
Practices:
● Engaginginargumentfromevidence-Studentspresentanargumentbasedonempiricalevidence,models,andinvokescientificreasoning.
Phenomena:Seawatermixturethatcontainsdissolvedsubstancessuchascalciumcarbonateusedbystonycoralstobuildtheirskeletons.Ironfilingsandwater(lookagainafterafewdaysatrustthathasformed).Magnetseparatesmixtureofironandaluminumnails.Questions:Whatisonewayyoucouldclassifyorgroupsubstancesandmixtures?Howsimilarordifferentaresubstancesandmixturesatthe
mixturepuresubstancecompositionreactionphysicalpropertieschemicalformulasolution
Puresubstancesincludebothelementsandcompounds.Mixturesincludebothmixturesofelementsandcompounds.Thisstandardindirectlybuildsontheideathatchemicalshavespecificproperties.Whenelements/compoundsexistinamixture,eachofthepartsretainsitsuniquephysicalproperties.Intheeventofareactionwithinthismixture,apuresubstancecanresult(assumingperfectratiosofconstituentparts).Thisnewpuresubstancewillhaveanewsetofphysicalproperties(e.g.,boilingpoint,stateofmatteratroomtemperature,conductivity).
SeventhGrade:Sciencemicroscopicscale?Whatpatternscanbeseenbetweenphysicalandchemicalproperties?
7.PS1.4 AnalyzeandinterpretchemicalreactionstodetermineifthetotalnumberofatomsinthereactantsandproductssupporttheLawofConservationofMass. ComponentIdea:ChemicalReactionsLearningTargets:
● Identifythereactantsandproductsofchemicalequations● DemonstratetheLawofConservationofmassbybalancingequations
usingcoefficients(TiebacktoPS1.1.andPS1.2)CrosscuttingConcepts:
● EnergyandMatter-Studentsdemonstrateconservationofmassinphysicalandchemicalchanges.
Practices:Analyzingandinterpretingdata-Studentsshouldcreateandanalyzegraphicalpresentationsofdatatoidentifylinearandnon-linearrelationships,considerstatisticalfeatureswithindataandevaluatemultipledatasetsforasinglephenomenon.
Phenomena:Glowstickbrokenandgivingofflight.Ballooninflatedwithcarbondioxidegasproducedasaresultofthechangewhenvinegarisaddedtobakingsoda.Questions:Ifmattercanbeneithercreatednordestroyed,howarenewsubstancesproducedduringachemicalreaction?
atomicnumberatomicmassreactantproductLawofConservationofMasscoefficientsubscriptchemicalreaction
Studentsareexpectedtobeabletointerpretchemicalformulaetodeterminethenumberandidentityofdifferentatomstakingpartinachemicalreaction.Treatmentofreactionsshouldincludethehandlingofpolyatomicionswhentheseionsarepresentinboththereactantsandproducts.Agradeleveldefinitionofpolyatomicionsisaliteralinterpretationofthenamethattheseareasetofatomsthatfunctionasasingleatom.Itisimportanttonotethatthecoefficientsproceedingasubstanceinareactionrepresentthenumberofatoms/molecules/formulaunitsormolesinabalancedreaction.Inhighschool,thesecoefficientswillbeusedtodeterminemole
SeventhGrade:ScienceWhatevidenceistherethatmatterisconservedinthiscycle?Howareatomsinmoleculesbeingrearrangedintodifferentmolecules?
ratios,sobeginningtousethetermmoleishelpful.Sincethewordmoleliterallytranslates,to“lump”thereisnoneedtodefineanactualamountinamole.(DiscussionofmolarmassandAvogadro’sNumberarebeyondthescopeofthisstandard.Quantitativeevaluationislimitedtodeterminingthenumberofeachtypeofelementorpolyatomicionsinareaction.)
7.PS1.5 Usetheperiodictableasamodeltoanalyzeandinterpretevidencerelatingtophysicalandchemicalpropertiestoidentifyasampleofmatter. ComponentIdea:ChemicalReactionsLearningTargets:
● Provideexamplesthephysicalpropertiesusedtoclassifyapuresubstanceorpurecompound
● Provideexamplesofchemicalpropertiesusedtoclassifypuresubstancesandpurecompounds
● Usetheperiodictabletoshowsimilaritiesanddifferencesbetweenphysicalpropertiesofelementsandchemicalpropertiesofelements
● Understandhowelementsontheperiodictablearearranged(TiebacktoPS1.3)CrosscuttingConcepts:
● Pattern- Studentsrecognize,classify,andrecordpatternsformacroscopicphenomenabasedonmicroscopicstructure.
Phenomena:AluminumorCopperphysicalpropertiesandplacementonPeriodictable.SodiumandPotassiumsharethepropertyofreactivitywithwater.MagnettoseparateAl&FenailsQuestions:Canyouidentify
physicalpropertychemicalpropertymetalnonmetalmetalloidmalleableflammableductiledensity
Thepropertiesofapuresubstanceunderspecificconditionscanbeusedtoidentifythatsubstance.Examplesofsuchpropertiesmightinclude,meltingpoint,boilingpoint,abilitytoconductanelectricalcurrent,flammability,odor,pH,orinteractingwithmagnets.Thisstandardisintricatelyconnectedwith7.PS1.3aschangesfromamixtureintoapuresubstanceresultinachangetothesephysicalproperties.Forinstance,themixtureoftwoliquidswithdifferingpHscancreateanewsubstancewithauniquepH.Discussionsshouldincludebothpureelemental
SeventhGrade:SciencePractices:
● Analyzingandinterpretingdata-Studentsshouldcreateandanalyzegraphicalpresentationsofdatatoidentifylinearandnon-linearrelationships,considerstatisticalfeatureswithindata,andevaluatemultipledatasetsforasinglephenomenon.
ametalbasedonitsproperties?Howcanyouidentifyunknownsubstances?Whataresomesimilaritiesanddifferencesamongphysicalandchemicalproperties?Whatpatternsdoyouobserveintheperiodictable?
conductivitymelting/boilingpoint
substancesandpurecompounds.Useoftheperiodictableshouldalsoincludesimilaritiesinphysicalandchemicalpropertiesofcompoundsformedfromametalandanon-metal(ioniccompounds),comparedwithcompoundsformedfromapairofnon-metals(molecularcompounds).
7.PS1.6Createandinterpretmodelsofsubstanceswhoseatomsrepresentthestatesofmatterwithrespecttotemperatureandpressure. ComponentIdea:StructureandPropertiesofMatterLearningTargets:
● Compareparticlemotionandattractioninsolids,liquids,gases● Providemodelsofthearrangementofatomsinsolids,liquids,andgases
duringchangesintemperature.● Providemodelsofthearrangementofatomsinsolids,liquids,andgases
duringchangesinpressure.● Boyle’sLaw● Charles’sLaw
CrosscuttingConcepts:
Phenomena:Comparisonofmoleculesofdifferentsubstancesasasolid,liquid,gas.Physicalchangeofwaterasitboils,orpaintasitdries.Blowupaballoonandmeasure
solidliquidgasattractionKelvinPascalvolumepressure
Thestateofmatterofasubstanceisdependentonthreefactors:theintermolecularattractionsbetweentheatoms/moleculesofthesubstance,theexternalpressureonthesubstance,andthetemperatureofthesubstance.Somesubstancessuchashydrogenandheliumatomsexistprimarilyasgasesduetoveryweakintermolecularattractions.Thiscontrastswithsubstancessuchasioniccompoundswhichhave
SeventhGrade:Science● CauseandEffect- Studentsinferandidentifycauseandeffectrelationshipsfrom
patterns.Practices:
● Developingandusingmodels-Studentscreatemodelswhichareresponsiveandincorporatefeaturesthatarenotvisibleinthenaturalworld,buthaveimplicationsonthebehaviorofthemodeledsystemsandcanidentifylimitationsoftheirmodels.
circumference,freeze/coolitandmeasureitagain.Soapbubbleontopofwaterbottle,heathandsandwarmbottletomakebubblerise.WeatherballoonsexpandastheyriseinatmosphereQuestions:Howaremoleculesarrangedinasolidcomparedtoaliquidoragas?Howwilltemperaturechangeaffectdryice?Howdotemperatureandpressureaffectatomarrangement?
extremelystrongintermolecularattractionskeepingatomsinaveryorganizedcrystallatticepatternevenathightemperatures.Pressurecanbeseenasanexternalforcefromsurroundingmatterpushingtheparticlesclosertogether.Itislogicaltoincorporatetriplepointdiagramsintodiscussionsofthisstandard.(Studentsarenotexpectedtodifferentiatebetweenthetypesofintermolecularattractions,merelytorecognizetheirroleinsubstancesmovingbetweenstatesofmatter.)
SeventhGrade:Science LifeScience
CoreIdea:LS1FromMoleculestoOrganisms:StructuresandProcesses
PrerequisiteLearning:K.LS1.1-3,1.LS1.1-3,2.LS1.1-3,3.LS1.1,5.LS1.1 PercentofTime:46%(10weeks)
StandardandLearningTarget PhenomenaPromptsandEssentialQuestions
Vocabulary TeacherBackgroundKnowledge/Clarifica
tionStatement
7.LS1.1Developandconstructmodelsthatidentifyandexplainthestructureandfunctionofmajorcellorganellesastheycontributetothelifeactivitiesofthecellandorganism.ComponentIdea:StructureandFunctionLearningTargets:
● Identifythe3partsofthecelltheory● Identifyanddescribethestructureofcellorganelles● Identifyanddescribethefunctionofcellorganelles● Explainhowthestructureandfunctionofanorganellecontributestothe
lifeofanorganism● Explaintheinterdependenceoforganellesasasystemthatcontributesto
thelifeofanorganism.CrosscuttingConcepts:
● SystemsandSystemModels-Studentsdevelopmodelsforsystemswhichincludebothvisibleandinvisibleinputsandoutputsforthatsystem.
Practices:
● Developingandusingmodels- Studentscreatemodelswhichareresponsiveandincorporatefeaturesthatarenotvisibleinthenaturalworld,buthaveimplicationsonthebehaviorofthemodeledsystemsandcanidentifylimitationsoftheirmodels.
Phenomena:Displayimageofplant,animal,bacteriaandaskwhatdothesethingshaveincommon?Showamicroscopicimageofbraincellsandtalkabouthowthosecellscontrolbalance,postureandmusclecoordinationthroughoutthebody.UseFranciscoRediandLouisPasteur’s
cellorganellenucleuschloroplastmitochondriacellwallcellmembranevacuolecytoplasmstructurefunctionmulticellular
Thefocusofthisstandardistounderstandthatcellularorganellesworkincoordinationwithoneanothertoformaworkingsystem.Justaslargemulticellularorganismsmustobtainfoodandwater,aswellasremovewaste,singlecells(includingthosewithinmulticellularorganisms)mustcarryoutthesesamefunctions.Organellesprovideawaytodistributetheseparticularresponsibilities,thusincreasingefficiency.Cellsandcellorganellesaremicroscopicinscaleandthereforemustbedemonstratedintheformofmodelsthatdemonstratetheirstructural,functional,proportionalrelationships.Examplesofmodelscouldbedrawnorrepresented
SeventhGrade:ScienceexperimentstonullifytheTheoryofSpontaneousGenerationoflivingthings.Questions:Howarecellslikeorganisms?Howdothepartsofacellororganismworktogether?Howdothedifferentorganellesofacellinteract?Whatcantheorganellesdotogetherthattheycannotdoalone?
unicellular
bytypesofcandyordriedbeansthatbearsimilaritiestothecellpartsspecifiedinappearanceaswellasfunction.Studentscancomparethemainpartsofthecelltothepartsofafactoryorschoolinfunction.Studentscouldconstructamodeldepictingthestructureandfunctionofthecellmembraneanditsroleinmaintaininghomeostasisintheorganism.Microscopesareagreatwaytoexaminetheirowncheekcells.(Theemphasisisonthefunctioninadditiontoidentificationoforganelles(nucleus,chloroplast,mitochondria,cellmembrane,cellwall,vacuole,andcytoplasm).Focusshouldbeoncauseandeffectoforganellesfunctionsbothindependentlyandincoordinationwithotherorganelles/environmentasaworkingsystem.)
SeventhGrade:Science7.LS1.2Conductaninvestigationtodemonstratehowthecellmembranemaintainshomeostasisthroughtheprocessofpassivetransport. ComponentIdea:StructureandFunctionLearningTargets:
● Describehowanorganismmaintainshomeostasisbyrespondingtoastimulusintheenvironment
● Describethemethodsthatmoleculesmoveinandoutofthecellthroughthecellmembrane(diffusionandosmosis)
● Explainthecauseofthemovementofmoleculesinandoutofthecell(TiebacktoLS1.1)CrosscuttingConcepts:
● StabilityandChange-Studentsmakeexplanationsofstabilityandchangediscussingmolecularcomponentsofasystem.
Practices:
● Planningandcarryingoutcontrolledinvestigations-Studentsbegintoinvestigateindependently,selectappropriateindependentvariablestoexploreadependentvariableandrecognizethevalueoffailureandrevisionintheexperimentalprocess.
Phenomena:EggOsmosisDemonstrationIodine&StarchdemoGummyBearOsmosis;Wiltedceleryplaceinwater.Questions:Whatthingsstaythesameinhomeostasis?Whatishappeningbetweenthecellandtheoutsideenvironment?Whatfacilitatesthemovementofmaterialsacrossthecellmembrane?
homeostasisstimuluspassivetransportdiffusionosmosisconcentrationsemi-permeableselectivelypermeablecellmembranehypertonichypotonicfacilitateddiffusion
Thefunctionofthisstandardistobuildanunderstandingfortheprocessesofpassivetransportwithinthecellmembrane.Itisnotnecessarytoelaborateonthevarietyofstructuresembeddedinthecellmembrane.Materialsmoveintothecellbasedontheconcentrationsofmaterialsinsidevs.outsideofthecell.Whenaccompaniedbyparticlediagrams,theclassicdiffusionintoandoutofaneggdemonstrationisasuitableinvestigation.Askingforavarietyofmodelstoshowunderstandingofsimplediffusioncanpushstudentstouncoverflawsinormorefullydeveloptheirownmentalmodels.
7.LS1.3Evaluateevidencethatcellshavestructuralsimilaritiesanddifferencesacrosskingdoms.ComponentIdea:StructureandFunction
Phenomena:MicroscopicimagesofcellsfromdifferentKingdomsand
prokaryoteeukaryoteunicellular
Taxonomicclassificationhasdevelopedashumancapacitytoorganizeandobservepatternswithinlifehasincreased.CarlLinnaeusdevelopedhis
SeventhGrade:ScienceLearningTargets:
● Understandthemethodbywhichorganismsareclassified(taxonomy)● Identifythe6Kingdomsoforganisms● Understandthatorganismsareclassifiedbytypeofcell,numberofcells,
andmodeofnutritionandphysicalcharacteristics(Prokaryote,Eukaryote,Unicellular,Multicellular,Autotroph,Heterotroph)
● Classifyorganismsintooneofthe6Kingdomsbasedontypeofcell,numberofcells,modeofnutrition,andphysicalcharacteristics
● CompareandcontrasttheorganellesoforganismsofdifferentKingdomsCrosscuttingConcepts:
● Pattern- Studentsrecognize,classify,andrecordpatternsindata,graphs,andcharts.
Practices:● Engaginginargumentfromevidence- Studentspresentanargumentbasedon
empiricalevidence,models,andinvokescientificreasoning.
identifypresenceofanucleus.Showphotoofoceanlife,scientistsclassifynewlifeaccordingtowhatisalreadyknownbasedoncellstructureandotherfeatures.Questions:Howarecellssimilaranddifferentfromoneanother?Whataresimilaritiesanddifferencesbetween6Kingdoms?HowsimilaranddifferentareProkaryoticandEukaryoticatthemicroscopicscale?Howsimilarand
multicellularautotrophheterotrophArchaeaBacteriaProtistaFungiPlantaeAnimaliataxonomy
originalclassificationsystemconsistingoftwobiologicallysignificantfamilies:plantsandanimals.(Linnaeusalsoincludedanowdefunctsystemforclassificationofminerals.)Understandingoflifecyclesandthefieldsofmicroscopyhaveledtofurtherexpansionofthesekingdomstothesixcurrent,widely-accepted,kingdoms:Archaea,Bacteria,Protista,Fungi,Plantae,andAnimalia.CurrentrevisionstothesekingdomsbroughtonbyadvancesingenesequencinghaveraisedquestionsastothevalidityofKingdomProtistaduetothelackofsimilaritybetweenorganismswithinthiskingdom.Activitiesmayincludecomparingrealplantandanimalcellsforpresenceofanucleus,cellwall,structuralorientationofcells,andpresenceofchloroplastsusingacompoundlightmicroscope.Studentscanuseexamplesofprokaryoticandeukaryoticorganismsandpointoutthepresenceofthenucleusdistinguishestheeukaryotesfromtheprokaryotes.Students
SeventhGrade:SciencedifferentareProkaryoticandEukaryoticatthemacroscopicscale?Whataresomesimilaritiesanddifferencesamongunicellularandmulticellular?
shouldbeabletodifferentiateandclassifyorganismsintothesixcurrentkingdoms.Studentsshouldunderstandbasicphysicalcharacteristicsofeachkingdom,i.e.beingunicellularormulticellular,howfoodisobtained.(Focusisonstructuralandfunctionaldifferencesatacellularlevelbetweendomainsandkingdomsaswellastheintroductionofincreasinglymorecomplexcellstructurefromprokaryotictoeukaryoticorganisms.)
7.LS1.4 Diagramthehierarchicalorganizationofmulticellularorganismsfromcellstoorganism. ComponentIdea:StructureandFunctionLearningTargets:
● Definecell,tissue,organ,andorgansystem● Differentiatebetweencells,tissues,organs,andorgansystems● Explaintheinterconnectednessofcells,tissues,organsandorgansystems
CrosscuttingConcepts:
● Systemsandsystemmodels- Studentsevaluatethesub-systemsthatmaymakeupalargersystem.
Practices:
● Developingandusingmodels-Studentscreatemodelswhichareresponsiveandincorporatefeaturesthatarenotvisibleinthenaturalworld,buthaveimplicationsonthebehaviorofthemodeledsystemsandcanidentifylimitationsoftheirmodels.
Phenomena:Studentsareshowna3-Dimageofaplantand/oranimal’scell,tissue,organorsystem.Forexample,ananimal’seyeismadeofmillionsofcellsandmanylayersoftissues.Questions:Whatarethekeypartsofanorgansystem?
celltissueorganorgansystemorganismhierarchicalorganization
Priorto7.LS1,studentshavenotbeenintroducedtoCellTheory.7.LS1.3introducesstudentstothevariouskingdomsoflife.Thisstandardexaminesdeeperlevelsoforganizationwithinvarioustypesofmulticellularorganisms.Celltypesaredifferentiatedasaresultoftheirvaryingfunction.Thisstandardmaybedemonstratedbyhavingstudentscreaterepresentationsofthehierarchicalorganizationofmulticellularorganismsbuildingfromcellstoorganstoorgansystemsupthroughentireorganisms.
SeventhGrade:ScienceCantheorgansystembephysicallyisolatedinordertostudyit?Howdothepartsoftheorgansystemworktogether?Whatcantheorgansdotogetherasasystemthattheycannotdoalone?
Considerthefollowingexample:cardiacmusclecellingroupsformtissuesoftheheart,arteriesandveins,andthecirculatory/cardiovascularsystem.Effectivelycoveringthisstandardsetsafoundationforsuccessinhighschoolbiologywherestudentsmakeconnectionsbetweentheprevalenceofcertainorganellesindifferentcelltypesbasedonthefunctionofthosecells.
7.LS1.5Explainthatthebodyisasystemcomprisedorsubsystemsthatmaintainequilibriumandsupportlifethroughdigestion,respiration,excretion,circulation,sensation(nervousandintegumentary)andlocomotion(musculoskeletal). ComponentIdea:StructureandFunctionLearningTargets:
● Defineandprovideexamplesofhomeostasis● Explainthefunctionofthemajorbodysystems:digestion,respiration,
excretion,circulation,nervous,integumentary,andmusculoskeletal.● Identifythemajororgansofeachbodysystem
Phenomena:Discusswhythebodyshiversincoldenvironment,sweatsafterworkout.Snakeswarminginthesun.Digestionof
bodysystemequilibriumhomeostasisdigestiverespiratoryexcretory
Studentshavealreadystudiedbothinternalandexternalstructuresandhowthesestructuressupportessentiallifefunctions.Itisveryimportanttoseethisstandardasacontinuationofdiscussionsofstructure.Itmaybehelpfulbyaddressingthebodysystemasananalogtoanecosystem:Thebodyconsistsofanumberof
SeventhGrade:Science● Explainhowtheinterdependenceofmajororgansystemsworkto
maintainequilibriumandsupportlifeinanorganism(TiebacktoLS1.1,LS1.4)CrosscuttingConcepts:
● Systemsandsystemmodels- Studentsevaluatethesub-systemsthatmaymakeupalargersystem.
Practices:Constructingexplanationsanddesigningsolutions-Studentsformexplanationsusingsource(includingstudentdevelopedinvestigations)whichshowcomprehensionofparsimony(beingconcise),utilizequantitativeandqualitativemodelstomakepredictions,andcansupportorcauserevisionsofaparticularconclusion.
foodQuestions:Whatbodysystemsarerequiredtosuccessfullyrunamile?Whichbodysystemsworktogethertodigestfood,andhowaretheyorganized?Howdotherespiratoryandcirculatorysystemsworktogether?Drawapicturethatshowshowtheorgansworktogethertomakeupanorgansystem?
circulatorynervousintegumentarymuscularskeletalinterdependence
individualpieceswithinterconnectedfunctions.Systemsoforgansincreasetheefficiencyofthesefunctions.Interdependencebetweenthesystemsmightbeaddressedbyconsideringeffectsofexerciseonthevariousbodysystems.Energydemandsareheightened,requiringincreasedinputsfromtherespiratoryandcirculatorysystemstosupportthatactivityofthemusculoskeletalsystem.(Lymphatic,endocrine,immune,andreproductivesystemsaregreatforenrichment,butbeyondthescopeofthisstandard.)
7.LS1.6Developanargumentbasedonempiricalevidenceandscientificreasoningtoexplainhowbehavioralandstructuraladaptationsinanimalsandplantsaffecttheprobabilityofsurvivalandreproductivesuccess.ComponentIdea:Growthanddevelopmentoforganisms
Phenomena:PepperedMothexperimentBirdsand
adaptationbehavioraladaptation
Asageneralconcept,3.LS1.1asksstudentstoconsiderinternalandexternalstructuresthatcancontributetoreproductivesuccessandsurvival.This
SeventhGrade:ScienceLearningTargets:
● Defineadaptation● Differentiatebetweenstructuralandbehavioraladaptations● Provideexamplesofstructuralandbehavioraladaptationsinplantsand
animalsthataffectreproductivesuccessandsurvivalrate(besuretoincludeavarietyofexamples)
● Explainhowanorganism’sadaptationaffectsitssurvivalrateandreproductivesuccess
(TiebacktoLS1.7,LS3.1)CrosscuttingConcepts:
● CauseandEffect-Studentscaninferandidentifycauseandeffectrelationshipsfrompattern.
Practices:Engaginginargumentfromevidence- Studentspresentanargumentbasedonempiricalevidence,models,andinvokescientificreasoning.
Worms(coloredtoothpickexperiment)Questions:Howdoesanorganism’sadaptationstotheenvironmentpromotereproductivesuccess?Giveexamplesofstructuralandbehavioraladaptationsinplantsandanimals.Howcanyoutestwhetheranorganism’sadaptationaffectsitssurvivalrate?Canflowersbemaleorfemale?Howcanasmallchangeinananimal’sadaptationhave
structuraladaptationempiricalevidenceprobability
standardconveysthesameideabutwithgreatercomplexity.Thirdgraderepresentedastudent’sfirstencounterwiththeideathatorganismshaveanyinvisibleinternalstructure,thereforeexampleswereverysimpleandisolated.Whilethestructuresaddressedinpriorstandardsplayedaroleinmeetingthegeneralneedsoflivingorganisms,thisstandardfocusesspecificallyonadaptationsconnectedtoreproductivesuccesses.Examplesofreproductiveadaptationsinplantsmightinclude:brightflowers,nectar,hardshells,andpollenorseeds.Animalbehaviorsassociatedwithreproductivesuccessshouldalsobediscussed.Thesebehaviorsmayincludenestbuilding,herding,andvocalization.Someplantsarereliantonanimalsaspartoftheirreproductivestrategythroughinteractionssuchasseedscarification.(Studentsshouldnotbeledtomemorizeasmanyexamplesaspossible.Incontrast,studentsshouldbeprovidedopportunitiestoutilizedeductivereasoningtocreatetheir
SeventhGrade:Scienceabigeffectonsurvivalrates?
explanations.)
7.LS1.7Evaluateandcommunicateevidencethatcomparesandcontraststheadvantagesanddisadvantagesofsexualandasexualreproduction. ComponentIdea:GrowthandDevelopmentofOrganismsLearningTargets:(Priortobeginningthisstandard,remindstudentsofthecelltheory:allcellscomefrompre-existingcells)
● Definesexualandasexualreproduction● Provideexamplesoforganismsthatreproducesexuallyandasexuallyin
bothplantsandanimals● Differentiatebetweenthegeneticmaterialinoffspringoforganismsthat
reproducesexuallyandasexually● Compareandcontrasttheadvantagesanddisadvantagesofsexualand
asexualreproductionCrosscuttingConcepts:
● CauseandEffect- Studentsinferandidentifycauseandeffectrelationshipsfrompatterns.
Practices:Obtaining,evaluating,andcommunicatinginformation- (Observe)Studentscanevaluatetext,media,andvisualdisplaysofinformationwiththeintentofclarifyingclaimsandreconcilingexplanations.Studentscancommunicatescientificinformationinwritingutilizingembeddedtables,charts,figures,graphs.
Phenomena:Givestudentsscenariosthatshowabenefitandconsequenceofbothsexualandasexualandseeiftheycanclassifyandexplain(ex.PotatoBlight,parthenogenesis,vegetativepropagationexamples,differentvarietiesofsamespecies)Questions:Whatdifferencesandsimilaritiesbetweensexualandasexualreproduction?Howdoessexualandasexualreproductionaffectreproduction
asexualreproductionsexualreproductiongenesDNAparentoffspringgeneticmaterialgametezygotevariationvegetativepropagationparthenogenesisbuddingbinaryfission
Discussionsofthisstandardshouldfocusontheincreasetobiodiversityandvariationwithinaspeciesthatoccursasaresultofsexualreproduction.However,asexualreproductionoccursatamorerapidrateanddoesnotrequireamate.Studentsshouldexaminethebenefitsandchallengesassociatedwitheachreproductivestrategy.Regardlessofstrategyitisimportanttonotethatbothprocessestransfergeneticinformationtooffspring,whichservestoexplainpatternsintheappearanceofoffspringandparentsorwithinaspeciesasexploredinearliergrades.
SeventhGrade:Sciencerates?complexityoftheorganism?differencesingeneticinformation?Whenwouldasexualreproductionbemoreadvantageoustothesurvivalofaspeciesthatsexualreproduction?
biodiversity
7.LS1.8Constructanexplanationdemonstratingthatthefunctionofmitosisformulticellularorganismsisforgrowthandrepairthroughtheproductionofgeneticallyidenticaldaughtercells.ComponentIdea:GrowthandDevelopmentofOrganismsLearningTargets:(Priortobeginningthisstandard,remindstudentsofthecelltheory:allcellscomefrompre-existingcells)
● Explaintheneedforcellstodivide● Identifyandexplainthemainstagesofthecellcyclebasedonthe
movementanddivisionofDNA.● Describethestagesofmitosisbasedonchromosomalmovement● Explaintheoutcomeofcelldivisioninregardstothedivisionofgenetic
material
Phenomena:Howdoesaskinnedknee“heal”itself?Humanskincelldivisionproducingtwonewcellsthatareidenticaltooriginal.Timelapseofmitosis,andaskwhatishappening?
cellcyclemitosisdaughtercellidenticalgrowthrepairdevelopmentinterphaseprophase
Inordertogroworheal,bothmulticellularorganismsusetheprocessofmitosis.Theresultofmitosisisasetofcellsidenticaltotheparentcell.Inlatergrades,studentswillexplorehowinteractionswiththesecellswiththeirsurroundingsresultinvariationamongsttheseotherwiseidenticalcells.Themass/matterthataccountsforthegrowthofplantsisobtainedfromtheairduringtheprocessofphotosynthesis.Animals
SeventhGrade:Science(TiebacktoLS1.1,LS1.4)CrosscuttingConcepts:
● EnergyandMatter- Studentsdemonstrateconservationofmassinphysicalandchemicalchanges.
Practices:
● Constructingexplanationsanddesigningsolutions-Studentsformexplanationsusingsource(includingstudentdevelopedinvestigations)whichshowcomprehensionofparsimony,utilizequantitativeandqualitativemodelstomakepredictions,andcansupportorcauserevisionsofaparticularconclusion.
Starfishregeneratingdamagedarms.Questions:Inwhattypesofcellsdoesthisoccur?Whenisitnecessaryforcellstodivide?Whatstagesdocellsundergoinordertodivide?Howdoeschromosomalmovementchangethroughtheprocessofmitosis?Wheredonewcellscomefrom?Howdoesyourbodyhealitself?
metaphaseanaphasetelophasecytokinesischromosomeDNAreplication
obtainthismatterbyeatingeitherplantsorotheranimals.(Aspartofthisparticularcomponentidea,thefocusofthisstandardshouldbeontheprocessofcellgrowth,andnotontheinheritanceofDNAascoveredinLS3.)
SeventhGrade:Science7.LS1.9Constructascientificexplanationbasedoncompiledevidencefortheprocessesofphotosynthesisofcellularrespiration,andanaerobicrespirationinthecyclingofmatterandflowofenergyintoandoutoforganisms.ComponentIdea:OrganizationforMatterandEnergyflowinOrganismsLearningTargets:
● Describetheexchangeofgasesbetweenplantsandanimals● Understandthatwater,oxygen,carbondioxide,andglucosearemadeof
chemicalsandhavechemicalformulas● Identifythereactantsandproductsofphotosynthesis● Identifythereactantsandproductsofcellularrespiration● Explaintherearrangingofatomsintheprocessesofphotosynthesisand
cellularrespiration● Explaintheprocessofanaerobicrespiration
(TiebacktoLS1.1,PS1.1,PS1.2,PS1.4)CrosscuttingConcepts:
● Systemsandsystemmodels- Studentsdevelopmodelsforsystemswhichincludebothvisibleandinvisibleinputsandoutputsforthatsystem.
Practices:
● Planningandcarryingoutcontrolledinvestigations-Studentsbegintoinvestigateindependently,selectappropriateindependentvariablestoexploreadependentvariableandrecognizethevalueoffailureandrevisionintheexperimentalprocess.
Phenomena:Bodyusinganaerobicrespirationduringhardexercise,thusproducinglacticacidandachingmuscles.Fermentationwithyeast,elodeaphotosynthesis/respirationwithplantsinajarwithacandle.Questions:HowdoestheenergyanathleteusecomefromtheSun?HowisATPutilizedandmadeinorganisms?Howdoorganismsobtainandusethematterand
photosynthesiscellularrespirationaerobicrespirationanaerobicrespirationinterdependencereactantproductConservationofMatterwater(H2O)carbondioxide(CO2)glucose/sugar(C6H12O6)ATP/chemicalenergysunlight/lightenergy
Studentsshouldcarryoutinvestigationstogenerateevidencefortherequirementsofpathwaysutilizedtoobtainenergyandmatter.Evidencecanbeobtainedbyobservingstomataontheundersideofplantleaves,observingchangestowaterpH(duetodissolvedgases)asaresultofphotosynthesisinplantssuchasElodea,observingbyproductsofrespiration.Thefocusshouldbeontheinterconnectednessofplantsandanimalsinthecyclingofmatter.Processesinsideoforganismsrearrangeatomsofthefoodmaterialsandreleasestoredchemicalenergy.(Thisstandardshouldnotfocusonmemorizingtheequationforphotosynthesis.)
SeventhGrade:Scienceenergytheyneedtogrowandlive?Howdoplantsreceivetheenergytheyneedtogrowandlivewithouteatingfood?
fermentationheterotrophautotrophchloroplastmitochondria
SeventhGrade:Science
LifeScienceCoreIdea:LS2Ecosystems:Interactions,Energy,andDynamics
PrerequisiteLearning:1.LS2.1-3,2.LS2.1-2,3.LS2.1,4.LS2.1-5,6.LS2.1-7 PercentofTime:4.5%(1week)
StandardandLearningTarget PhenomenaPromptsandEssentialQuestions
Vocabulary TeacherBackgroundKnowledge/Clarificatio
nStatement
7.LS2.1Developamodeltodepictthecyclingofmatter,includingcarbonandoxygen,includingtheflowofenergyamongbioticandabioticpartsofanecosystem.ComponentIdea:CyclesofMatterandEnergyTransferinEcosystemsLearningTargets:
● Explaintheexchangeofgasesbetweenplantsandanimals● Provideexamplesoftheexchangeandcyclingofmatterbetweenbioticand
abioticfactorsintheenvironment(orbiotictobiotic,orabiotictobiotic)thatdemonstratethatthesameatomsarereusedinnature
(TiebacktoLS1.9)CrosscuttingConcepts:
● EnergyandMatter- Studentsdemonstrateconservationofmassinphysicalandchemicalchanges.
Practices:
● Developingandusingmodels-Studentscreatemodelswhichareresponsiveandincorporatefeaturesthatarenotvisibleinthenaturalworld,buthaveimplicationsonthebehaviorofthemodeledsystemsandcanidentifylimitationsoftheirmodels.
Phenomena:Alivingforestwithanimals,plants,wateranddecayingmaterial,usingandreusingmatterandstartingcyclingofmatteragain.Questions:Howaregasesexchangedbetweenplantsandanimals?Howisthisrelationshipbeneficialtoeachorganism?
bioticabioticphotosynthesiscellularrespirationConservationofMatterdecomposerfoodchainfoodweb
Standard7.LS1.9providesanopportunitytogatherevidenceforthecyclingofmatterbetweenlivingorganisms.While7.LS2.1certainlydrawsonthissameevidence,discussionsshouldbeexpandedtoincludeabioticfactorsaswell.Thismightincludedecompositionorcombustionreleasingmatterfromnon-livingsystems,suchaswaterways,andpermittingitsreincorporationintolivingsystems.Decomposerscanbreakdownfecalmaterialfromlivingorganisms,makingthosematerialsavailableonceagain.Thesameatomsareusedoverandoveragainbylivingsystems;newatomsarenotcreated.
SeventhGrade:Science LifeScience
CoreIdea:LS3Heredity:InheritanceandVariationofTraits
PrerequisiteLearning:K.LS3.1,2.LS3.1,5.LS3.1-2 PercentofTime:18%(4weeks)
StandardandLearningTarget PhenomenaPromptsandEssentialQuestions
Vocabulary TeacherBackgroundKnowledge/Clarificati
onStatement
7.LS3.1Hypothesizethattheimpactofstructuralchangestogenes(i.e.,mutations)locatedonchromosomesmayresultinharmful,beneficial,orneutraleffectstothestructureandfunctionoftheorganism. ComponentIdea:VariationofTraitsLearningTargets:
● ExplainthatDNAistheblueprintforlife● ExplainhowDNAcontainchromosomesthatcodeforgenes
○ TiebacktoLS1.1,NucleuscontainsDNAthatcodesforproteinsthatcarryoutcellfunctionorserveasbuildingblocksforlife.
● Explainhowandwhenmutationsform,andprovideexamples● Explainhowamutationcouldbeharmful,helpful,orneutralinhelpingan
organismsurvivebyprovidingexamples○ Differentiatebetweenstructuralandfunctionaltraits
(TiebacktoLS1.7,LS1.6)CrosscuttingConcepts:
● CauseandEffect-Studentsbegintounderstandtherelationshipbetweengenesandvariationoftraitsandpredicttheimpactofthischange.
● StructureandFunction- Studentsbegintoattributeatomicstructureand
Phenomena:Dandelionsinayardmaybegeneticallyidentical.Differentcoloredbeetlesshowvariation.Questions:Whatistherelationshipbetweenproteinsandmutations?Howcanyouhaveadifferenthaircolorthan
MutationMitosisMeiosisDNAchromosomegeneproteinsallele
Tofullydevelopthisstandard,studentsmustbeinformedoftheroleofDNAintheproductionofproteinsandtheroleoftheseproteinsindeterminingaphenotype.Studentscanexamineorresearchaparticularchromosomeorgeneonthatchromosometoshowthatitmakesaproteintoexhibitatrait.Thisisoftenbestaccomplishedusingamonogenetictrait.Forexample,tyrosinaseandcanbeexploredwithrespecttoitsroleintheproductionofmelaninwhereamutationtothatproteincanresultinthealbinismcondition.Anexamplemightalsoshowahumankaryotypewithgenesdisplayedassectionsofachromosome.(Theprocessesoftranscriptionand
SeventhGrade:Scienceinteractionsbetweenparticlestothepropertiesofamaterial.
Practices:
● Obtaining,evaluating,andcommunicatinginformation-(Observe)Studentscanevaluatetext,media,andvisualdisplaysofinformationwiththeintentofclarifyingclaimsandreconcilingexplanations.Studentscancommunicatescientificinformationinwritingutilizingembeddedtables,charts,figures,graphs.
eitherofyourparents?Ifmutationisnotbeneficialtoanorganism,howwillthatbereflectedinthepopulation?
translationareabovethisstandard.)
7.LS3.2Distinguishbetweenmitosisandmeiosisandcomparetheresultingdaughtercells.ComponentIdea:VariationofTraitsLearningTargets:(Priortobeginningthisstandard,remindstudentsofthecelltheory:allcellscomefrompre-existingcells)
● Identifyanddescribethestepsofmeiosis● Compareandcontrastthepathwayofgeneticmaterialbetweenmitosisand
meiosis● Compareandcontrasttheresultingdaughtercellsofmitosisandmeiosis
(TiebacktoLS1.8)CrosscuttingConcepts:
● CauseandEffect- Studentsinferandidentifycauseandeffectrelationshipsfrompatterns.
Practices:
● Developingandusingmodels-Studentscreatemodelswhichareresponsiveandincorporatefeaturesthatarenotvisibleinthenaturalworld,buthaveimplicationsonthebehaviorofthemodeledsystemsandcanidentifylimitationsoftheirmodels.
Phenomena:TotieintoStarWarspopularculture,providetheexampleoftheCloneArmyTrooperstoSkywalkerfamily(DarthVaderandLuke)Questions:Whydosiblingslooksimilarbutnotidentical?Iscanceramutation?Describechromosomalmovementinmitosisandmeiosis.Explaingenetic
mitosismeiosisgenesdaughtercellsparentcellsbodycellssexcells
Theprocessofsexualreproductionproducesonesetofgeneticinformationforanoffspring(withtwocopiesofmostgenes)whereeachparenthascontributedhalfofthegeneticinformation(onecopyofeachgene).Thefocusofthisstandardisnotonthememorizationofthespecificnamesofphasesofcellreproduction,butondevelopinganunderstandingofhowdaughtercellscomparebetweeneachprocess.Thestagesofeitherprocessmaybeusedinsupportduringinstruction.Forexample,studentscouldtraceasinglechromosomethroughtheprocess,noticingthateachofthenewsexcellsproducedaregeneticallydifferentfromtheparentcellbasedontwodivisionsandhalftheDNA.(Thisstandarddoesnotanticipatethatstudentswillmemorizethenamesofthephasesofmitosis/meiosis.)
SeventhGrade:Sciencediversityinmitosisvs.meiosis.
7.LS3.3Predicttheprobabilityofindividualdominantandrecessiveallelestobetransmittedfromeachparenttooffspringduringsexualreproductionandrepresentthegenotypicandphenotypicpatternsusingratios.ComponentIdea:VariationofTraitsLearningTargets:
● Understandtheconnectionbetweenchromosomes,genes,andinheritedtraits
● Differentiatebetweendominantandrecessivealleles,andhowtheyareexpressedinoffspring
● Givenagenotypeorphenotype,predicttheprobabilityofexpressedtraitsinoffspringbyusingaPunnettsquare
● RepresentgenotypicandphenotypicpatternsusingratiosCrosscuttingConcepts:
● Pattern- Studentsrecognize,classify,andrecordpatternsformacroscopicphenomenabasedonmicroscopicstructure.
Practices:
● Analyzingandinterpretingdata-Studentsshouldcreateandanalyzegraphicalpresentationsofdatatoidentifylinearandnon-linearrelationships,considerstatisticalfeatureswithindataandevaluatemultipledatasetsforasinglephenomenon.
Phenomena:Whydoesachildhavesimilarfeaturesofbothoftheparents?Showapictureofanparentsandoffspringthatlookremarkablydifferentortwooffspringthatlookremarkablydifferentfromthesameparents.Questions:Ifbothofmyparentshavebrowneyes,whyaremyeyesblue?
Punnettsquarephenotypegenotypedominantrecessiveallelehereditytraitgeneticsgenepurebredhybridhomozygousheterozygousprobability
Itisimperativethatthisstandardisnotmerelyanexerciseofprobability,butconfirms7.LS3.1and7.LS3.2.Anallelemaybeconsidereddominantifasinglecopyofthatallele(fromoneparent)producessufficientamountsofagivenproteintoproducetherelatedphenotype.Forexample,asinglecopyofthetyrosinasegenecanproduceenoughofthetyrosinaseenzymetoresultintheproductionofmelaninbymelanocytes.Otherpossibleexamplesmightincludepeaplantflowercolor,seedshape,seedsize,orvisiblyacquiredtraits.(Thisstandarddoesnotincludetheideaofcodominance,incompletedominance,polygenicinheritance,orgeneticlinkage.)
SeventhGrade:Science EarthandSpaceScience
CoreIdea:ESS3EarthandHumanActivity
PrerequisiteLearning:K.ESS3.1-3,3.ESS3.1-2,4.ESS3.1-2,6.ESS3.1-3 PercentofTime:9%(2weeks)
StandardandLearningTarget PhenomenaPromptsandEssentialQuestions
Vocabulary TeacherBackgroundKnowledge/Clarificati
onStatement
7.ESS3.1Graphicallyrepresentthecompositionoftheatmosphereasamixtureofgasesanddiscussthepotentialforatmosphericchange.ComponentIdea:GlobalClimateChangeLearningTargets:(TeachconcurrentlywithESS3.2)
● DemonstratethechemicalmakeupofEarth’satmosphericgasesusingagraph
● Usingevidence,demonstratehowhumanshaveaffectedthecompositionofEarth’satmosphere(examples:fossilfuels,greenhousegases,nitrogen)
CrosscuttingConcepts:
● StabilityandChange- Studentsmakeexplanationsofstabilityandchangediscussingmolecularcomponentsofasystem.
Practices:
● Analyzingandinterpretingdata-Studentsshouldcreateandanalyzegraphicalpresentationsofdatatoidentifylinearandnon-linearrelationships,considerstatisticalfeatureswithindataandevaluatemultipledatasetsforasinglephenomenon.
Phenomena:Showpiegraphsoftimeswhenthecompositionoftheatmospherevariedfromitscurrentcomposition.(refertoNASAwebsiteforgraphs)andaskstudentstopostulatecausesforfluctuationsinthisdataovertime?Questions:Whatisaircomposedof,
NitrogenOxygenCarbonDioxideArgonMethaneGreenhousegasesFossilfuelsozoneatmosphere
Theatmosphereis~78%nitrogen,~21%oxygen,~1%argon,watervapor,carbondioxide,andothertracegases.StudentsshouldexamineboththemajorandtracegasesmakingupEarth’satmosphere.Discussionsregardingthepotentialforatmosphericchangeshouldcenteronhownaturalbiogeochemicalcyclesandhumanimpactsdetermineitscomposition.Discussionofatmosphericchangeshouldincludeidentificationofgreenhousegasesandthemechanismbywhichthesegasesaffectclimatechange.(Emphasisisnotbasedonmemorizationofatmosphericcomposition.)
SeventhGrade:Scienceandhowisitbeingalteredhumanactivity?Whataregreenhousegases?Howdohumanactivitiesaffectearth’sclimate?WhatistheevidenceforGlobalWarming?WhataresomeimpactsofGlobalWarming?
7.ESS3.2Engageinascientificargumentthroughgraphingandtranslatingdataregardinghumanactivityandclimate. ComponentIdea:GlobalClimateChangeLearningTargets:(TeachconcurrentlywithESS3.1)
● Provideexamplesofhowhumanactivityhasimpactedclimate○ Carbondioxideintheatmosphere,temperaturechangeonEarth,
greenhousegaspresenceovertime,useofrenewableandnonrenewableresources,sealevelchangesovertime
● Usingevidence,demonstratetheimpacthumanshavehadonclimate
Phenomena:Photothatshowssmog.Humanactivitiesthatinvolveburningfuelscancauseairpollution.Photoshowingmeltedwaterpouringoff
greenhousegaseselectromagneticradiation(UVrays)CFCsclimatechange
Theabilitytocomprehendhumanimpactsontheatmosphereandclimatedependsonbothtranslatinghistoricalandpresent-daydataaswellasinterpretingdatageneratedthroughmodels.Datasetscanincludelevelsofcarbondioxideintheatmosphere,thetemperatureoftheearth,levelsofenergyuse,efficiencyofenergyuse,glaciallandareas,ocean
SeventhGrade:ScienceCrosscuttingConcepts:
● Pattern-Studentsrecognize,classify,andrecordpatternsindata,graphs,andcharts. Practices:
● Engaginginargumentfromevidence-Studentspresentanargumentbasedonempiricalevidence,models,andinvokescientificreasoning.
iceberg,orsatelliteimageofArcticorMountKilimanjarofrom1970’sversuspresent.Questions:Howhavehumanactivitiesaffectedtheglobalclimate?Engagestudentsingeneratingquestionsaboutthephenomenonofglobalclimatechange.
globalwarminggreenhouseeffectfossilfuelsdeforestation
waterlevels,areasofpolarice,andareasofforestedland.Humanactivitiesincludethereleaseofgreenhousegases.Extensionofthisdiscussionshouldaddresstheuseofscientificunderstandingandengineeringtodrivefuturedecisionmaking.
SeventhGrade:Science
Engineering,Technology,andtheApplicationofScienceCoreIdea:ETS2LinksamongEngineering,Technology,Science,andSociety
PrerequisiteLearning:K.ETS2.1,1.ETS2.1,2.ETS2.1-2,3.ET2.1,4.ETS2.1-3,5.ETS2.1-3 PercentofTime:4.5%(1week)
StandardandLearningTarget PhenomenaPromptsandEssentialQuestions
Vocabulary TeacherBackgroundKnowledge/Clarificatio
nStatement
7.ETS2.1Examineaproblemfromthemedicalfieldpertainingtobiomaterialsanddesignasolutiontakingintoconsiderationthecriteria,constraints,andrelevantscientificprinciplesoftheproblemthatmaylimitpossiblesolutions.ComponentIdea:InterdependenceofScience,Technology,Engineering,andMathLearningTargets:
● Definebiomaterials● Provideexamplesofscientificadvancesindevelopingbiomaterials,
highlightingbenefitsandconstraintsoftheuseofmaterials● Analyzeengineeringdesignsolutionsthatcanbeemployedtohelppeople
withhumangeneticdisordersormutations(TieinwithLS1.5)CrosscuttingConcepts:
● Scale,Proportion,andQuantity-Studentsrecognizethatphenomenaarenotnecessarilyobservableatallscales.
Practices:
● Constructingexplanationsanddesigningsolutions- Studentscandesignaswellastestdevicesmeanttomeetspecificdesigncriteria,withtheobjectiveofincreasingtheeffectivenessofmultiplesolutions.
Phenomena:Photographthatshowstherelationshipbetweenathleteandprosthetic.Cheeseproductionandfermentation.Selectivebreedingorgeneticengineering.Questions:Whatarethecostsandbenefits(environmental,financial,andsocialimpacts)of
biomaterialsbioengineering
Fieldssuchasmaterialsciencesdependheavilyontheadvancementofscientificunderstanding.Theon-goingadvancementofthesefieldsispushedbyprogressinscience.Thedevelopmentofnewbiomaterialsalsorequiresconsiderationforthelongtermeffectsofmedicalmaterialsthatmaybeusedinternally,suchasheartvalves.Findingsolutionsformaterialuseinthebodyisdifficult.Bioengineersmustconsiderstrength,flexibility,durability,andchemicalinactivitydependingonitsrole.Studentsshouldthinkaboutchemicalandphysicalpropertiesofmaterialsandchemicalreactivitywhileengineeringdesignsolutionsthatcanbeemployedtohelppeoplewithhumangeneticdisordersormutations.