chemical reactions Word Searches

Chemical Reactions 2015-12-09

37 Items: wordatomodorionicsaltslightarrowmetalscommongassesenergyformulabubblesChemicalcompoundbalancedmoleculeproductsreactionbalancedEquationscorrosioncarbonatesynthesiscatalysstcombustionexothermiccoefficientprecipitateendothermictemperatureDecompositionconcentrationcharacteristicsdoublerplacementsinglereplacementconservationofmass

Chemical reactions 2017-05-09

35 Items: ionicmahadethanisaacyieldsbeamonmetalssharedashanihuggarproductbalancenorbergvalencehusseinchemicalchemicalcompoundproducesreactantcovalentreactionsequationssubscriptnonmetalsexothermicendothermiccoefficienttransferredelectronpairperiodictablephysicalsciencechemistryiscooltheuniverseislazylawofconservationofmass

Chemical Reactions 2023-03-20

16 Items: atomsmodelscaleproductreactantpropertymoleculecorrosiverearrangesubstancefertilizerboilingpointmeltingpointchemicalformulachemicalreactionextendedstructure

Chemical reactions 2019-09-18

25 Items: AtomAcidmassoxideMetalsyieldsprotonFormulaneutronChemicalCompoundMoleculeReactionBalancedProductsequationEquationsReactantsCorrosionCarbonateelectronssubscriptchemistrycoefficientconservation

CHEMICAL REACTIONS 2021-10-17

26 Items: GASATOMENERGYELEMENTPROTONSNEUTRALPRODUCTDENSITYREACTIONNEUTRONSPOSITIVENEGATIVECOMPOUNDMOLECULECHEMICALSUBSTANCEELECTRONSEXOTHERMICPROPERTIESREACTIVITYSOLUBILITYPRECIPITATEENDOTHERMICBOILINGPOINTMELTINGPOINTFLAMMABILITY

Chemical Reactions 2022-11-10

22 Items: addatomwordsaltslogicmetalscommonchemicalcompoundreactionbalancedformulaereactionproductsmoleculescorrosioncarbonateequationscorrosionrearrangingdecompositioncharacteristics

Chemical Reactions 2023-11-01

26 Items: rateopensolutechangesystemclosedmixturecolloidsolventproductnaturalpolymersolutiondissolvephysicalchemicalreactantreactionresourcesyntheticreplicatesuspensionsolubilityexothermicendothermicdecomposition

Chemical Reactions 2023-11-17

21 Items: atomsaltacidwatercopperalkalielementproductcalciumneutralnitratecompoundmoleculereactionreactantequationhydrogensulphatechlorideindicatorneutralisation

Chemical Reactions 2013-04-09

23 Items: AtomAcidWordIonicSaltsMetalsCommonChemicalCompoundMoleculeReactionBalancedProductsFormulaeEquationsReactantsCorrosionCarbonateCombustionRearrangingDecompositionPrecipitationCharacteristics

Chemical reactions 2019-03-24

20 Items: masslawsatomsreactoxygenenergycarbonreleasereactionproductshydrogenequationperiodictransferchemistryreactantsexothermicsubstancesendothermicConservation

Chemical reactions 2023-05-02

21 Items: gasheatlightcolourrustingburningproductsnewsmellcatalystequationreactantspermanentcorrosionoxidationreactivitycombustionprecipitatenewsubstanceirreversiblefermentationdecomposition

Chemical Reactions 2013-04-09

23 Items: AtomAcidWordIonicSaltsMetalsCommonChemicalCompoundMoleculeReactionBalancedProductsFormulaeEquationsReactantsCorrosionCarbonateCombustionRearrangingDecompositionPrecipitationCharacteristics

Chemical Reactions 2017-02-28

22 Items: fullmassNeonCarbonProtonShellsOrbitsEnergystableatomicnumberElementNeutronvalenceCalciumformulaHydrogenElectronunstableNitrogenscientificconfiguration

Chemical reactions 2018-03-09

24 Items: gasnewheatacidatomlightwatermetalcolourcarbonoxygenrustingdioxidesymbolselementproductsreactionbalancedreactantssubstanceequationscombustionrespirationphotosynthesis

Chemical Reactions 2019-03-27

20 Items: gasatomsphasesolidcoloroxygensodiumliquidsampleproductmeltingboilingpropertyreactanthydrogenchlorinemoleculerearrangesubstancechemistry

Chemical Reactions 2020-12-17

24 Items: upnewsizeheatstatelightenzymecolourchangeoxygenspeedsburningfizzingamylasebubblescatalystparticlepressurechemicalphysicalmaterialcatalasetemperatureconcentration

Chemical Reactions 2020-12-17

26 Items: heatfuelacidstatelightfruitenzymeoxygenmetalsburningfizzingamylasebubblescatalystpressurechemicalphysicalcatalasespeedsupfireworksvegetablestemperaturenewmaterialparticlesizecolourchangeconcentration

Chemical Reactions 2021-02-01

31 Items: GasAtomAcidWordFuelSaltsMetalsCarbonEnergyThermalMethaneChemicalCompoundMoleculeReactionBalancedProductsFormulaeEquationEquationsReactantsCarbonateLimewaterCombustionExothermicRearrangingHydrocarbonEndothermicConservationDecompositionCharacteristics

Chemical Reactions 2022-03-28

25 Items: GasAtomIonicSolidPhaseYieldsLiquidMetalsFormulaChemicalBalancedProductsMoleculeCovalentReactionEquationsReactantsSubscriptCorrosionNonmetalsCombustionMetalloidsRearrangingCoefficientPrecipitation

Chemical Reactions 2022-09-26

23 Items: ionatommassclouddoublenumberprotonsingleelementneutronnitratenucleussulfateelectronbalancingcarbonatehydroxidephosphatesynthesispolyatomicreactivityradioactivedecomposition

Chemical Reactions 2021-06-18

17 Items: fuelcolouroxygenthermalproductshydrogenphysicalreactantsoxidationexothermiccombustionreversibleendothermictemperatureconservationeffervescencedecomposition

Chemical Reactions 2022-11-11

17 Items: gasatomsolidliquidproductprotonscompoundmoleculereactantneutronssubstanceelectronspropertiesprecipitatechemicalprocesschemicalreactionsyntheticmaterials

chemical reactions 2019-03-14

16 Items: acidbaseionicredoxbalancecovalentreactionsynthesisreductionoxidationconjugatecombustionchemicalbonddecompositiondoubledisplacementsingledisplacement

Chemical reactions 2019-03-24

16 Items: lawsatomsoxygenenergyreleasereactionproductshydrogenequationperiodictransferchemistryreactantsexothermicsubstancesendothermic

Chemical Reactions 2019-11-08

17 Items: ProductReactantSynthesisCombustionCoefficientPrecipitateDecompositionChemicalChangePhysicalChangeAqueoussolutionChemicalFormulaChemicalequationChemicalreactionSkeletonEquationDoublereplacementSinglereplacementLawofConservationofMass

IPC: Chemical Reactions 2017-10-20

23 Items: AtomBondMassIonicYieldChangeSystemFormulaProductMeltingEquationReactionCovalentMoleculeReactantSubscriptSubstanceExothermicCoefficientEndothermicConservationHeatingcurveSurroundings

Chemical Reactions 2023-03-07

15 Items: atomelementprotonsproductmoleculecompoundreactionpropertyreactantelectronssubstanceboilingpointmeltingpointperiodictablechemicalformula

Chemical Reactions 2014-12-15

15 Items: gasatomsoxygensciencebubbleschemicalhydrogenelementsanalysisreactionschemicalspropertieshypothesisconclusioncharacteristics

Chemical Reactions 2021-03-18

14 Items: fuelsignsoxideoxygencarbonproductbubblingequationhydrogenreactantcombustionexothermichydrocarbonendothermic

Chemical reactions 2013-11-27

13 Items: acidtesttubebasealkalisplintacidicneutralhydrgenignitesreactionchemicalslabratory

Chemical Reactions 2021-03-18

13 Items: oxidesignscarbonoxygenproductburningmonoxidereactanthydrogencompleteefficientcombustionhydrocarbon

Chemical Reactions 2022-08-18

13 Items: frontbreakwatersolutereleaseenzymescreatedproductsprecipitatecoefficientscarbondioxidephysicalchangechemicalreaction

Weathering and Erosion 2017-05-18

20 Items: rockwindwaterearthbreakforcesmallpieceserosionsurfacechemicalsedimentphysicalchemicaltransportreactionsweatheringmechanicalweatheringweathering

chemistry word search 2023-01-30

18 Items: gasfatsbondssolidatomsmatterheliumenergyformulacovalentchemicalperiodicnitrogenchemistryscientistreactionsstructurecrystallizing

Chemical Reactions 2016-03-03

12 Items: pophotgasfizzcoldsolidsmellsafetycolourliquidchemicalreaction

Chemical Reactions 2015-12-17

10 Items: GasesSoundsBeakerBubblesTestTubeOxidationMoleculesSteelWoolScienceLabChemicalReactions

Chemical Reactions Vocabulary 2017-01-10

17 Items: LawMassArrowYieldAtomsProductElementChemicalReactantBalancedEquationEquationEquationsSubscriptUnbalancedCoefficientConservation

Cells A System Vocabulary 2023-02-13

18 Items: dnafatsacidcellscyclelipidsenergyenzymeglucoseaerobicproteinsdivisionreactionsanaerobicorganellesrespirationcarbohydratesdifferentiation

Chemical Reactions 2015-10-19

10 Items: ProductCatalystReactantSynthesisCombustionCoefficientPrecipitateDecompositionSingledisplacementDoubledisplacement

Chemical Reactions Review  2014-05-22

16 Items: GasAcidBaseLawsAtomsDoubleSingleMatterFormalsSynthesisReactionsCombustionPropertiesdisplacementDisplacementDecomposition

Chemical Reactions Word Search 2022-12-06

26 Items: neonshareboronmetalcarbonoxygenheliumsodiumlithiumtransferfluoridehydrogenchlorinenitrogennonmetalmetallicberylliumpotassiumionicbondscovalentbondsseaofelectronsvalenceelectronlewisdotdiagrambalanceequationsdoubledisplacementsingledisplacement

Chemical Reactions and Equations 2016-11-04

26 Items: ofoflawmasssingledoubleenergyenzymeproductchemicalreactionchemicalequationreactantcatalystsynthesisinhibitorcombustionexothermicactivationcoefficientreplacementreplacementendothermicconservationdecomposition

Chemical Reactions in Cells 2014-12-05

19 Items: cellcelllipidelementorganicproteinnucleuscompoundmembraneeukaryoticorganellesautotrophsprokaryoticnucleicacidcarbohydratefermentationheterotrophsphotosynthesiscellularrespiration

Word Search - Chemical Reactions 2015-06-04

17 Items: ScienceEquationProductsChemistryMaterialsOxidationReactantsSubstanceCombustionExothermicHypothesisEndothermicObservationBunsenburnerChemicalreactionCompletecombustionIncompletecombustion

Chemical Reactions in Cells 2014-12-10

17 Items: lipidsenergyelementorganicproteincompoundautotrophlacticacidnucleicacidheterotrophchloroplastsmitochondriafermentationcarbohydratesphotosynthesiscellularrespirationalcoholicfermentation

CHEMISTRY 2014-05-21

36 Items: molebasemassMassbondratioyieldpairsacidsMolarionicPolarSingledoublevalencelimitingreactantelectronisotopeschemicalequationcovalentcovalentcompoundelectronsreactionsDilutionsMolecularpercentagecombustionionizationdisplacementdisplacementstoichiometryNeutralizationelectronegativity

Chemistry 2014-05-21

36 Items: molebasemassMassbondratioyieldpairsacidsMolarionicPolarSingledoublevalencelimitingreactantelectronisotopeschemicalequationcovalentcovalentcompoundelectronsreactionsDilutionsMolecularpercentagecombustionionizationdisplacementdisplacementstoichiometryNeutralizationelectronegativity

Chemical Reactions Word Search 2020-05-11

13 Items: atomsmodelscaleproductelementmoleculepropertyreactantreactionrearrangesubstancechemistryextendedstructure

Reactions 2018-11-13

15 Items: changemeltingmixtureproductrustingchemicaldissolvefreezingphysicalreactantreactioncombustionfiltrationreversiblenonreversible

CHEMICAL 2017-03-03

29 Items: RMMRAMSTPRTPIONMOLEATOMMASSIONICANIONCATIONVOLUMEKELVINPRODUCTFORMULAREACTANTBALANCEDREACTIONPRESSUREPREFIXESMOLARMASSMOLARVOLUMEQUALITATIVECOEFFICIENTTEMPERATUREQUANTITATIVESTOICHIOMETRYAVOGADROCONSTANTMOLECULARFORMULA

Chemical Elements and Terms 2023-03-30

45 Items: goldzincleadneonatomyieldionicoxygencoppersodiumsilversulfurcarbonchargecalciumbrominelithiumprotonsnucleuselementhydrogenaluminumchlorinefluorinenitrogencompoundneutronsproductschemicalphysicalcovalentnegativepositivepotassiummagnesiumelectronsreactantschemistrysynthesisreactionssubscriptscombustioncoefficientsperiodictabledecomposition

Reactions Unit 2015-01-23

17 Items: massratiomolesbinaryenergyproductequationreactantreactionbalancingsynthesiscombustionsubscriptsreplacementcoefficientconservationdecomposition

Chemical Bonds and Reactions-2 2023-10-17

12 Items: acidsbasesenergymatterenzymescatalystsexothermicequilibriumendothermiccovalentbondshydrogenboundsactivationenergy

Words in Chemistry, Physics, and Energy 2023-05-22

20 Items: Energy of lightGas to a liquidLiquid to solidEnergy of positionUnit to measure forceBonds between nonmetalsUnit for work and energyMakes reactions happen slowerGroup 17 on the periodic tableDefined as exerting a force over a distance_________ forces do not cause a change in motionChemical reactions that release energy to the environment...

CHEMICAL BONDING 2023-03-08

30 Items: ionsatomsionicanioncationsolidsmoltenforcesvalencebrittleorganicsolventcovalentmoleculenonmetalmetallicfreezingcrystalsmoisturestructuredissolvedinsolublecompoundsradiationexplosionattractivecrystallineelectrolytehybridizationelectroneutrality

CHEMICAL ELEMENTS 2023-11-25

30 Items: IronGoldZincLeadNeonRadonHeliumCarbonOxygenSilverCopperSodiumNickelSulfurIodineCobaltMercuryUraniumLithiumArsenicCalciumHydrogenChlorineAluminumTitaniumPotassiumMagnesiumManganesePalladiumPhosphorus

Plant Photosynthesis and Respiration 2017-10-17

13 Items: visibleglucosesunlightreactionsorganelleproducersthylakoidsrespirationChlorophyllcarbohydratesphotosynthesislightdependentlightindependent

Unconscious Reactions 2023-12-06

33 Items: gaglovechokesmilefrownangerimmunecringedreamscryingblinkingsweatingresponsesneezingmemoriescoughinglaughingreflexeswakingupbreathingheartbeatdigestionovulationdepressiongoosebumpsmetabolismsalivationmetabolismcelldivisionmusclememoryeyemovementsnervoussystembodychemistry

Unit 8 Chemical Reactions Word Search Chem1 2019-11-14

18 Items: DoubleProductReactantSynthesisCombustionCoefficientreplacementPrecipitateDecompositionChemicalchangePhysicalchangeAqueoussolutionChemicalformulaChemicalequationChemicalreactionSkeletonequationSinglereplacementLawofconservationofmass

Wellbeing 2021-11-18

16 Items: sleepbuildhealthcopingimproveactivityphysicalwellbeingreactionsbreathingstrategiesconfidencemindfulnessconnectednessunderstandingassertiveness

reactions 2023-01-30

12 Items: ratearearedoxthermalcatalystcatalystreductionoxidationexothermicendothermicdecompositionneutralisation

Science 2019-09-04

20 Items: earthspacecellsatomsplantshumansenergybiologyphysicsanimalsplanetschemistrychemicalsreactionsradiationlaboratoryecosystemsenvironmentdissectionsperiodictable

Mental Health #5 2021-12-02

20 Items: losshurtgriefnormalimpactcrisissupportfriendsservicethoughtsfeelingsReachoutemotionsreactionsBeyondBluesupportingoverwhelmingunpredictableSaneAustraliarelationships

emotions 2023-06-10

17 Items: angersharepanicscaredbeliefsexcitedemotionsfeelingsjealousypersonalhappinessreactionsterrifiedbitternessunderstandcontentmentexperiences

This week in science 2019-09-17

15 Items: labworkbondsatomstablebubblescolourselementsmixturesperiodiccompoundschemistrychemicalsreactionsexperiment

Carbon family 2013-09-17

23 Items: tinleadlifecarbonmetalscarbonSiliconvalenceofcellssilicondioxidesiliconcarbideabundantgermaniumelectronsnonmetalsconductorreactionschemistrysilicatesmetalloidselectricity

Chemical Elements 2023-11-09

20 Items: neonzincboroncobaltsodiumsulfurarseniccalciumkryptonaluminumchlorinefluorinehydrogennitrogenrubidiumseleniumvanadiumgermaniummagnesiumphosphorus

Chemical Engineering 2024-02-19

21 Items: gasionsaltmassatomvaporsolidfusionmatterprotonliquidcelsiusnucleusneutronelementfreezingdissolveelectronevaporatemalleablecondensation

Surviving Word Search 2024-04-20

23 Items: fungalsunbathenitratessunlightfilteredmineralsdetectedsurvivingmoleculesreactionschemicalsmeasuringproducingdaffodilsinvisibleadditionalphosphatesincreasingparticularneighboursextractingrespirationphotosynthesis

CHEMICAL WORDSEARCH 2023-03-09

20 Items: oreionacidgroupmetalminingethicsalkalienergycobaltlithiumbatteryextractelectricelectronceramicselectrodereactivitydepressionsustainable

Chemical Elements 2023-04-26

30 Items: neonironzincboronargonheliumcarbonoxygensodiumsulfurcobaltnickelcopperlithiumsiliconcalciumhydrogennitrogenfluorinechlorinescandiumtitaniumvanadiumchromiumberylliummagnesiumpotassiummanganesephosphorusaluminum-(or-aluminium)

Chemical Elements 2023-11-09

20 Items: neonzincboroncobaltsodiumsulfurarseniccalciumkryptonaluminumchlorinefluorinehydrogennitrogenrubidiumseleniumvanadiumgermaniummagnesiumphosphorus

Chemical Science  2014-02-12

23 Items: atomsspacegasesvolumematterenergyatomictheoryforcescarbonoxygendensitymixturescompoundelementsmoleculechemistrysaturatedpropertiesionicbondspuresubstancecovalentbondschemicalreactions

Chemical Elements 2024-03-20

20 Items: neonboronargonheliumcarbonoxygensodiumsulfurlithiumsiliconcalciumhydrogennitrogenfluorinealuminumchlorineberylliummagnesiumpotassiumphosphorus

Chemical Equilibrium 2013-11-21

15 Items: VOLUMECATALYSTPRESSUREEXOTHERMICENDOTHERMICTEMPERATURECONCENTRATIONREACTIONQUOTIENTCHEMICALEQUILIBRIUMEQUILIBRIUMCONSTANTREVERSIBLEREACTIONSIRREVERSIBLEREACTIONSLECHATELIERSPRINCIPLEHOMOGENEOUSEQUILIBRIUMHETEROGENEOUSEQUILIBRIUM

Chemical Safety 2024-01-16

19 Items: msdsoshatoxicwaterflushglovesfunnellabelshazardscontactcleaneraerosolsslipperychemicalslubricantsventilationpoisonousgassafetyglasseschemicalsafety

reversible reactions 2016-10-19

13 Items: heatequalHaberenergyforwardsbackwardsreversibleexothermicconditionsendothermicequilibriumsurroundingsconservation

online study  2022-04-26

12 Items: mutezoomlinkscamerachatboxinternetreactionsheadphonetechnologywhite-boardshare-screenbreakout-rooms

online study  2022-04-26

12 Items: mutezoomlinkscamerachatboxinternetreactionsheadphonetechnologywhite-boardshare-screenbreakout-rooms

Self-awareness 2023-06-05

7 Items: valuesfeedbackgratitudeemotionalreactionsempatheticpersonality

Chemistry Word Search 2015-12-14

25 Items: openmasssoutealloysmetalssystemclosedsystemmixturesolventsolubleelementssubstancechemistryreactionssolutionsinsolublecompoundsnonmetalsexothermicendothermicchromatogrampuresubstanceperiodictablechromatography

Photosynthesis and Respiration Word Search 2017-10-17

8 Items: reactionsreactionsthylakoidrespirationchlorophyllphotosynthesislightdependentlightindependent

15 2022-12-24

15 Items: chartcerealcesiumcentriccenozoiccerebrumchemicalcentimetercerebellumcementationcentripetalcharacteristiccharles-darwinchemical-formulacentripetal-force

Chemical Solutions 2020-11-25

16 Items: polaralloysolutesolventmixturesolutiondilutionmolaritymolalitynonpolardissolvedsolvationsolubilityhomogeneoushydrogenbondconcentration

Chemical Building Blocks 2017-09-17

28 Items: GasSolidMatterLiquidOxygenCarbonSoluteDiluteMixtureElementBoilingMeltingSolventFreezingNitrogenSolutionHydrogenDiffusionParticlesConductionConvectionFiltrationEvaporationSublimationCondensationConcentratedCarbonDioxidePureSubstance

Anger Managment 2015-10-02

27 Items: ValuesCopingMoralsChangeChoicesExcusesHonestyPassiveGrudgesFeelingsEmotionsIntegrityAssertiveAwarenessReactionsChallengesDisciplineAggressivePerceptionBoundariesInfluencesResentmentMotivationForgivenessConsequencesCommunicationAccountability

Chemical Bonding 2017-10-31

12 Items: IonLoseGainIonicMetalsSharingPositiveNegativeCovalentElectronsNonmetalsAttraction

Chemical Bonding 2020-04-13

14 Items: ionionicoctetdoublemetalscovalentnonpolarmetallicpositivenegativenonmetalssymmetricalhydrogenbondelectronegativity

Physical/Chemical 2014-03-02

15 Items: IONACIDBASEALLOYSOLUTEMIXTURECOLLOIDSOLVENTPRODUCTSOLUTIONCOMPOUNDALKALINITYSUBLIMATIONPRECIPITATENEUTRALIZATION

Chemical Change 2023-11-02

15 Items: productreactantsynthesisopensystemexothermiccoefficientprecipitateendothermicreplacementclosedsystemconservationdecompositionphysicalchangechemicalchangechemicalequation

CHEMICAL ELEMENTS 2020-02-27

15 Items: NEONBORONHELIUMCARBONOXYGENSODIUMLITHIUMSILICONHYDROGENNITROGENFLUORINEBERYLLIUMMAGNESIUMALUMINIUMPHOSPHORUS

Changes in Matter 2024-01-04

15 Items: Chemical _______ is another term for chemical change.A chemical _______ is used to describe chemical changes._____________ properties can be observed using your senses.A ______ change causes a substance to change its state of matter.Washing your hands with ______ is an example of a chemical change....

Types of Chemical Reactions 2023-06-14

5 Items: 1 product2 productsone the reactant is oxygentwo elements switched placedone element replaces one element

Balancing Chemical Equations 2018-04-05

19 Items: atomsarrowequalsymbolformulaelementchemicalreactionproductsbalancedmoleculechemicalequationreactantsinventorysubscriptunbalancedcoefficientconservation

Physical and Chemical 2021-11-21

25 Items: pHDensityproductToxicityreactantMagnetismDuctilityOxidationSynthesisSolubilityReactivityprecipitateConductivityMalleabilityFlammabilityMeltingpointsBoilingpointsFreezingpointsPhysicalchangeChemicalchangeHeatofcombustionChemicalreactionChemicalequationExothermicreactionEndothermicreaction

Chemical Chaos 2023-03-06

13 Items: colorbubblealcoholcabbagevinegarchemicaldishsoapperoxidephysicalbakingsodacitricacidplasticbagtemperature

Metals and reactions 2019-01-31

17 Items: acidironzincmetaloxidewateroxygencopperalkalihydrogenphysicalchemicalequationhydroxidemagnesiumreactivityconservationofmass

Chemical Compounds 2018-10-11

10 Items: dnaacidlipidenzymeelementproteinnucleiccompounddoublehelixcarbohydrate

Chemical Word Search 2023-10-09

20 Items: liqidsolarhybridfallacypowdersprotonssyringesymptomvoltagevisiblechemicalparticlepressuresympathyuniverseelectronshydraulichypothermiasynchronisehypothetically

Photosynthesis SC.8.L.18.1 2023-01-02

12 Items: An organism that makes its own foodEnergy stored in chemical bonds and released through chemical reactionsA colorless, odorless, tasteless liquid that living things need to surviveA gas produced by animals during respiration that plants use for photosynthesisA gas produced by plants during photosynthesis that animals use for respiration...