chemistry Word Searches

French School Word Search 2024-11-22

46 Items: PEartlawgymmatheasyhardclassgradeschoolfrenchI loveI hateofficeusefulsciencebiologyphysicshistoryspanishenglishlibrarydiplomauselesshomeworkeducationchemistryeconomicsgeographycafeteriaphilosophypsychologyhumanitiesarchitcturescholarshipI don't likeI really likefashion designsocial studieshigher educationComputer sciencepolitical science...

French Vocab 2024-12-02

46 Items: PEArtLawGymMathEasyHardClassGradeSchoolFrenchI loveI hateOfficeUsefulScienceBiologyPhysicsHistorySpanishEnglishLibraryDiplomaUselessHomeworkEducationChemistryEconomicsGeographyCafeteriaPhilisophyPsychologyHumanitiesScholarshipArchitectureI don't likeI really likeFashion DesignSocial StudiesHigher EducationComputer SciencePolitical Science...

Deutsch I Quiz 4.4 2026-01-27

30 Items: artmathhourmonthmusicMinutesecondto endbiologyto beginchemistryto wake upin the nighthistory, storyto fall asleepdone, finishedin the morningin the eveningsport, gym classcomputer sciencein the afternooninstruction, classsubject, cubby holeto get up, stand upin the late morningbreak, recess, pauseafterschool club (long)afterschool club (short)...

HAPPY LAB WEEK 2024 2024-04-18

12 Items: RBC STANDS FOR?WBC STANDS FOR?DO NOT LEAVE SAMPLES ___!WHAT COLOR IS A EDTA TUBE?STAT TURNAROUND TIME IS __ HOURS?SST TUBES HAVE WHAT KIND OF TEST?SAMPLE TUBES MUST ALWAYS HAVE A ___ ?BODILY FLUIDS ARE WHAT KIND OF HAZARD?ALWAYS WEAR YOUR ___ WHEN HANDLING SAMPLES!IF YOU DON'T KNOW WHAT TO DO, FOLLOW THE___ !...

Photographic Basics 2025-01-16

14 Items: Safety Data SheetsAnother Term for Ghost ImageThe Coated Side of Photo PaperMakes the Latent Image VisibleBath Stops the Development ProcessMakes Photo Light Safe and PermanentLight Sensitive Material in Photo PaperDevelop Turns This Color When ExhaustedThe Color Light that Effects Photo PaperStop Bath Turns This Color When Exhausted...

Our Wedding Word Search 2025-09-28

117 Items: JoyVowFunHugBondGiftKissRingWifeDateGalaHopeLifeRuthAdoreAltarBrideGroomHeartHonorTrustUnityUnionDanceDreamFeastLightMusicPeaceHoseaPeterAlwaysFiancéMutualSpouseCaringDatingGentleLoversTandemWarmthCheersFloralJoyfulLivelySmilesWishesBelovedCherishEmbraceEternalFiancéeForeverHusbandLoyaltyMarriedPromiseRomanceBondingComfortDevotedEngagedPartner...

Chapter 10 Laboratory Procedures 2024-04-16

14 Items: after eatingaka fasted or before eatingcontains RBCs WBCs and plateletsmultiple samples can be collectedno anticoagulent, blood is clottedserum is cloudy or white, high in fatused for morphology, lavender top tubeused for blood chemistry, green top tubeno anticoagulent, layer to separate serumAKA microhematocrit, percentage RBC in blood...

Our Wedding Word Search 2025-09-28

117 Items: JoyVowFunHugBondGiftKissRingWifeDateGalaHopeLifeRuthAdoreAltarBrideGroomHeartHonorTrustUnityUnionDanceDreamFeastLightMusicPeaceHoseaPeterAlwaysFiancéMutualSpouseCaringDatingGentleLoversTandemWarmthCheersFloralJoyfulLivelySmilesWishesBelovedCherishEmbraceEternalFiancéeForeverHusbandLoyaltyMarriedPromiseRomanceBondingComfortDevotedEngagedPartner...

French Vocab 2024-12-02

46 Items: ArtLawGymEasyHardClassGradeSchoolFrenchI loveI hateOfficeUsefulScienceBiologyPhysicsHistorySpanishEnglishLibraryDiplomaUselessHomeworkEducationChemistryEconomicsGeographyCafeteriaPhilosophyPsychologyphysique PEScholarshipArchitectureFashion designSocial studiesHigher educationComputer science(les maths) Mathpas I don’t likePolitical science...

Chemistry 2026-01-19

1 Item: Alkaline, PH Scale, Stomach acid, Combustion, Synthesis, Equilibrium, Elements, Chemistry, Atoms

120 random words 2025-01-21

120 Items: napearrunactfaxaskdayjetclayshedurgeablelootusermistgainplugwormhatemassinchwakepartnavydormlakedulltheftpanicgiantplantswordatticstaffswarmthankapplerouteVenusguiltproudwomanfruittitleeagleforcemarshbeardbreedyearndevotenarrowenginefinishthroneprayerbrokenmiserycopperdenialgravelcancerdoublebridgedefinecontentcaptaindisplaycrusadepostureterrify...

mixed 2025-05-01

122 Items: buscardogcatpigyatewizztaxilegogoatlambrungrangtrainguardfaultleedsplanegreenblackwhitemathsblankqueenbleekplacemusicpianocelloviolabrasssignaldundeeticketenginedieselyellowspookyburialguitarrailwaystationjourneydelayedjubileetauntonsaltasheasyjetenglishsciencephysicsbiologybeetleshamstertrumpetstringsbakerloovictorianorthernpenzanceplyomuth...

Random word search for Mr. Scully 2026-01-27

123 Items: anbycatanticesunbadlionsockdarkrockmilemealdutytestrentloseruinheadAIDSwearparkhangbombrareballdrawrockrearzebrahippoplantkittyfalsechainpettysmellradiolayerheartweighenemyscalemuggyswellshoutcoachpanictrailschoollitterdegustmosquechargerevealgarliccandlelistenmethodsmoothwonderrevivetrenchrejecthunterunlikemakeupsciencespanishgirafeeglaciermusical...

gg no re 2026-02-17

35 Items: timecellatomvirusfungiplanetquasarprotonorgansbananaphysicsneutronorganicjupiterbiologyelementgeneticasteroidelectronmoleculevelocityskeletalbacteriaastronomychemistrylymphaticaminoacidEquipment used to measure volume of a liquidA cylindrical glass container for laboratory usePiece of equipment used to hold multiple test tubes...

"one of us is lying" 2024-05-28

10 Items: Simon's best frienddied from a peanut allergythe cause of Simon's deaththe name of the detention groupcharges the four students are facingexposed for cheating on the chemistry testsaccused of doing steroids to enhance his gameswhat the four kids are required to do after Simon's deathexposed for cheating on her boyfriend Jake with his best friend TJ...

Redox Vocabulary (paired with Holt PDF Textbook) 2023-05-01

15 Items: site of reductionsite of oxidationelectric potentialThe gain of electronsThe disintegration of metalsone half of the overall redox reactionaccept electrons easily and are reducedtwo electrodes separated by an electrolyteThe loss, wholly or in part, of one or more electronscause reduction to happen and are themselves oxidized...

Atomic Wordsearch 2025-08-12

11 Items: A noble gas with atomic mass 39.9First element of the periodic tableA vertical column on periodic tableA horizontal row on the periodic tableThe branch of science relative to atomssimplified atomic structure by Niels Bohratomic model proposed by JJ Thomson in 1904Found in our bones, number 20 of periodic table...

Palabras al Azar 2023-03-07

20 Items: a sneaky animalan extoic fruitMan's best friendthe color of an applemoisture for the skina device you play withword describing an injurya color on the Honduras flagwhat people drive on an dailytrips people take to get awayword describing having to waittype of support to help you seeword describing a tiring feelinga subject dealing with chemistry...

Merit Badges 2024-09-02

134 Items: ArtLawGolfPetsChessMusicRadioStudyHikingEnergyNatureRowingSafetySportsCookingCampingCyclingArcheryBuglingDogCareFishingGeologyPotteryReadingSkatingTextileTheaterWeatherWeldingFirstAidSwimmingAviationBasketryCanoeingClimbingDraftingForestryKayakingMedicinePaintingPlumbingRoboticsWoodworkAstronomyAthleticsBirdStudyChemistryDentistryGardeningGenealogy...

Kimetsu Gakuen!! 2025-04-24

133 Items: ArtRuiMathGotoSumiKiyoNahoEnmuMizuZuhaYunaDoumaMusicCivicsTamayoHealthMakomoManagiTakadaSabitoPlacesYahabaRokuroHistoryBiologyEnglishCherukaParentsKotetsuKengYinPotionsSumaUzuiLawGroupStudentsCuteShopAkiraYinKokushiboChemistryLibrarianMakioUzuiKieKamadoSweetShopRumorClubDramaClubLowermoonsKanaeKochoTengenUzuiTennisClubAoiKanzakiUmeShabana...

Camp Tucker Week 7 - Science Week Word Search - 2 2025-07-17

132 Items: DNAATOMCELLDATAFACTHEATIDEALAWSLIFEMASSCLAIMEARTHFORCEGENESGRAPHLIGHTMODELPHASEPLANTSCALESOUNDSPACEANIMALBEAKERBONDEDBOTANYBURNERENERGYFOSSILFUNNELLIVINGMAGNETMATTERMOTIONRECORDRETORTTHEORYTISSUETRACESANALYZEBIOLOGYBURETTECLIMATECUVETTEDIAGRAMDIORAMAELEMENTGEOLOGYGRAVITYMEASUREMINERALMIXTURENATURALOBSERVEPHYSICSPIPETTEREMAINSRESULTSSCIENCEZOOLOGY...

Atoms & Molecules 2025-11-06

14 Items: The study of matterAtoms joined by sharing electronsMade when atoms join with other atomsAbbreviations for the names of elementsType of reaction where molecules combineAnything that has mass and takes up spaceThe number of protons in an atom's nucleusAn atom that has gained or lost an electronA system of classifying the various elements...

education 2025-10-27

19 Items: Synonym of test.The study of numbers.To study for an exam.A mark on an exam or course.School after primary school.The opposite of public school.The days and times of classes.The opposite of pass (a test).After an exam, you get the _____.University graduates have a _____.A period of time in a school year.The study of novels, plays, poetry....

Merit Badge Word Search 2024-05-23

138 Items: artlawgolfpetschessmusicradioenergyhikingnaturerowingsafetysportsarcherybuglingcampingcookingcyclingdogcarefishinggeologypotteryreadingskatingtextiletheaterweatherweldingaviationbasketrycanoeingclimbingdraftingfirstaidforestrykayakingpaintingplumbingroboticsswimmingwoodworkanimationastronomyathleticsbirdstudychemistrydentistrygardeninggenealogy...

Merit Badge Word Search 2024-05-23

138 Items: artlawgolfpetschessmusicradioenergyhikingnaturerowingsafetysportsarcherybuglingcampingcookingcyclingdogcarefishinggeologypotteryreadingskatingtextiletheaterweatherweldingaviationbasketrycanoeingclimbingdraftingfirstaidforestrykayakingpaintingplumbingroboticsswimmingwoodworkanimationastronomyathleticsbirdstudychemistrydentistrygardeninggenealogy...

Word Search puzzle grade 6 2024-12-06

20 Items: A new idea or creationPowers your home and devicesA story about someone’s lifeA home for animals or plantsA giant reptile from the pastThe study of stars and planetsA mountain that erupts with lavaTurning waste into something newThe force that keeps us on EarthAn exciting journey or experienceA group of people living together...

Bestselling Titles at People's Book! 2023-09-19

16 Items: "The ___" by Zadie Smith"Tom ___" by Ann Patchett"Yellowface" by P. F. ___"Demon ___" by Barbara Kingsolver"Lessons in ___" by Bonnie Garmus"The Very Hungry ___" by Eric Carle"The ___ of Water" by Abraham Verhese"Llama Llama Red ____" by Anna Dewdney"I Have Some ____ for you" by Rebecca Makkai"Chain Gang All ___" by Nana Kwame Adjei-Brenyah...

Dancing Word Search 2025-10-19

18 Items: Casper is a ______Here, kitty kitty kittyWerewolves are also ___________Festive word from Daphne's recapMammals associated with vampiresNature's crime scene in AntarcticaThe word for being scared of fearsA multi-limbed fictitious sea monsterBreak this, get seven years of bad luckThe mess a spider leaves in the corners...

Mole Day 2023-10-23

10 Items: a mole is like a chemical '_____'a single unit of an ionic compoundthe mass of one mole of a substancea single unit of a covalent compounda unit used in chemistry to count particlesthe smallest particle of a substance that is not bondedthe scientist that the number 6.022x10^23 is named after...

U1-1 2025-08-02

10 Items: A dried grape.To make liquid fly about in drops.Grown or produced without artificial chemicals.Firm, dry, and easily broken; or, fresh and clean.To scatter small drops or particles over something.To keep something in its original state or in good condition.A meal consisting of several dishes from which guests serve themselves....

Becoming a High School Student 2026-02-09

20 Items: 学期to complete a goalwill be remembereda large, major testto help in some wayscience studying living thingsfeeling worried about somethingto be successful on a test/coursein science, a way to test an ideascience studying matter and energyone of the areas of study at schoolto undergo an event, situation, etc.to not be successful on a test/course...

Nuclear Chemistry 2026-02-25

1 Item: GAMMA, BETA, ALPHA, ELECTROMAGNETIC, WAVES, HAZARDOUS,DIAGNOSTIC, IMAGING,ALZHEIMER, RADIOACTIVE, PLUTONIUM, THERAPY, IRIDIUM, URANIUM, RADON,NUCLEAR, CHEMISTRY

SHAMMY CREATION 2025-11-17

150 Items: GOLDCOZYMYDADFANCYOCEANSILLYGOOFYFUNNYBEACHBLUEYBINGOSILKYHONEYJESUSWASABISHAMMYDRAGONDISNEYSHARKSWICKEDMOVIESMUSEUMMAKEUPTONINGGINGERTRAVELFAMILYTIKTOKUROLOGYFASHIONREADINGHOBBIESVAMPIRECOOKOUTBLANKETSHAMPOOMIRACLEBUBBLESDOGGIESROMANCEGOODINGHIGHWAYMASCARAYOUTUBEBARGAINBIOLOGYDOLLARSRADIANTBLOSSOMWORSHIPCASHIERSTYLISHFLOWERSCANDLESWEATHERPAYMENT...

Happy Mole Day 2024-10-25

1 Item: October Mole holiday chemists chemistry students chemistry enthusiasts Avogadro constant mole atoms mass law calculate molecules numbers happy mole day six two twenty three chart

School 2026-01-29

159 Items: gymmathdesksexamslogicbinderdebatedrillseraserethicsmemoryrecessrulersguidesalgebrabiologybluepencrayonsfoldersgradinghistorylabcoatlecturelibrarylockersmarkerssolvingrespectsciencesurveysartclassassemblybackpackgymclasshallwayshandoutshomeworkidentityjournalsmidtermsplannersscissorsseminarssyllabustheoriescafeteriacasefileschemistryclassroom...

Engineering Word Search 2024-09-27

20 Items: Increase in speed or rate.The main body of an aircraft.Something that a chicken laysThe matter from which something is made.A stoppage or sudden cessation of motion.The speed, or time that it takes to land.A subject concerning numbers and equations.Make something on a large scale using machinery.The action or process of moving, or being moved....

Rocks and Minerals 2025-11-28

5 Items: Which rock cycle process alters minerals when hot fluids percolate through rock, changing chemistry without melting?What metamorphic rock develops from basalt under medium-grade metamorphism and contains amphibole aligned into bands?...

Popular Subjects 2023-08-18

1 Item: Psychology, Sociology, Radiology, Literature, Art, Chemistry, Biology, History, Science, Architecture, Law, Politics, Philosophy

word search 2025-03-26

11 Items: Which species are sequential hermaphrodites?The 'jumping gene' found by Barbara Mc ClintockWhat does traditional vaccine development rely on?What remains a persistent issue for a career in STEM?Mary Anning's discoveries created public interest in...What is the name of the first women to win a Nobel Prize in Chemistry?...

Science 2026-01-20

1 Item: laboratory experiments research chemicals maths space elements biology chemistry physics solar system inventions medicine

Seton Science 4 Ch 8 Review 2025-05-20

20 Items: germ freehelp given to accident victimsinventor of a vaccine for polioa strip of cloth used to cover a cutblood cells surround germs and kill themtubes that connect your ear with your throatopen this when you expect to hear a loud noisemicroscopic animals some of which cause malariadrugs that kill germs by preventing their growth...

Science Word Search 2025-02-07

100 Items: pHDNALabAtomGeneCellLensWaveDataAcidBaseBiomeVirusPlateOceanForceSpeedLightSolarEnergyProtonFossilEnzymeOpticsFusionTheorySampleAtomicBiologyPhysicsQuantumGravityNeutronSpeciesMicrobeProteinNucleusGeologyVolcanoWeatherClimateKineticCircuitCurrentVoltageFissionReagentSolventIsotopeMoleculeElectronOrganismBacteriaRibosomeTectonicVelocityFriction...

united 2022-12-08

66 Items: rosesagebiomecamelbridgeantigenacologybiologybiofuelbiotechbiomassparsleyaerologyairplaneaccepterantibodybackbonebiometerbroadwaybrooklynconsumercompounddolphinscardamomlavenderaerospaceanabolismastronomyacidulantbiospherebiologistchinatownchemistryatmosphereabsolutismabsorptionantibioticabsorbancecapitalismcryospherecardiologyaerodynamic...

Adhd Word Search 2025-02-03

200 Items: BBWFatMiaADHDDOOMDebtKronLolaMigsSOMATAFETokiBendyEddieFancyFurryHenryINFRAKylieMoneyMusicNoiceNyoomPlumpSteamTexasUngreValveYipeeArthurAutismBatmanCancerChubbyCircusCloverCodingDanielEuropeFamilyFetishGamingHuggerHunterLithumMentalNathanNissanPRUNESPortalPostalRobloxSchoolScoobyStampyTARDISTophatTuxedoAlfarexAmericaBrendanCameronCandaceCookies...

Replay Word Search 2022-09-20

192 Items: one321365realjojoa-yolifecluenotefireevilviewlove1of1isayjumpcødeareakindamigograzehitmehellogetitstartasideshineorgelalivedxdxdprismshiftaboabretrodriveyou&ireplaybetterseesawkissyobounceoddeyesaviorwantedrescuemelodyclosergetdownthenameluciferup&downwowowowhonestyspoilerrunawaypicassoromancetriggerholdyouuneedmeourpagetonightseasonsinmyroom...

Cat Word Search 2025-10-14

200 Items: upcatdogarmtoeairgayredoilsunlionmarsareszuescoldwarmearsnoseeyeskneesnowrainfireaxisstarkitelefteastwestdownsidebackdeadcodebluepinkgreylimekiwiwinebeermathjailohioutahperumoonringcubeovaltreeleafzebrahippocupidvenusearthfuzzybootsshirtsockspantsheelsmouthstormwaterrightnorthsouthfrontalivesupergreenblackbrownwhitelemonappleolivevodkaromangreek...

Word Search 2025-10-14

200 Items: upcatdogarmtoeairgayredoilsunlionmarsareszuescoldwarmearsnoseeyeskneesnowrainfireaxisstarkitelefteastwestdownsidebackdeadcodebluepinkgreylimekiwiwinebeermathjailohioutahperumoonringcubeovaltreeleafzebrahippocupidvenusearthfuzzybootsshirtsockspantsheelsmouthstormwaterrightnorthsouthfrontalivesupergreenblackbrownwhitelemonappleolivevodkaromangreek...

Nobel Prize Winners of India 2025-08-22

9 Items: He and his team won the Nobel Prize in Economics in 2019.He was the winner of the Nobel Prize for Physiology/Medicine in 1968.He was the first Asian to be awarded the Nobel Prize in Literature in the year 1913.She was the first Indian woman to receive the Nobel Prize for Peace in the year 1979....

Chem 1 Unit 1 Vocab 2026-01-12

13 Items: _______ a measured that reflects the amount of matter______ the study of matter and the changes it undergoes_______ is a measure of the amount of space that matter occupies________ the amount of mass per unit volume; a physical property._______ a set of controlled observations that test the hypothesis...

Happy Pharmacy Week 2025-10-09

1 Item: Tech, Buyer, Prescription, Medication, Biology, Capsule, Injection, Tablet, Chemistry, Dose, Interactions, Effects, Adverse, Pharmaceutics, Potassium, Vancomycin, Famotidine, Diltiazem, Ativan, Morphine, Prozac, Celecoxib, Albuterol, Zolpidem, Ibuprofen,

VOCABULARY STAGE 3 2025-10-03

1 Item: Biology Literature Chemistry Poetry University amazing degree languages course exchange match game championship race singer artirst journalist musician photographer actor designer police officer firefighter pilot highway railroad luggage passengers goods

Walter, Word Search 2025-04-30

1 Item: goodman, skyler, mike, lawyer, wexler, pinkman, fring, chicken, breakfast, cancer, peekaboo, pollos, minerals, purple, meth, blue, nacho, chicanery, smoke, chemistry, winner, flynn, namaste, hamlin, ding, salud, ernesto, cocobolo, hummer, skateboard, bing

Suspensions Word Search 2025-03-26

35 Items: ion with (-) chargealso known as basesgas with pungent ordereasily absorbs moisturesubatomic with (+) chargecontraction of surface agentsion with (+) electrical chargeparticles with negative chargemixture of 2 or more substancessimplest form of chemical matterrapid oxidation of heat and lightsubatomic particles with no charge...

Scientific Revolution and Enlightenment 2026-01-06

26 Items: The study of light.The study of living organisms.Newton’s explanation of gravity.Proposed the heliocentric theory.Rules explaining how objects move.The study of matter and its properties.Tool used to observe very small objects.Tool used to observe distant objects in space.Promoted empiricism and evidence-based science....

Brainstorming Word Search 2025-06-11

12 Items: describe properties or occurrences in ways that do not rely on numbersmeasurements, which by definition consist of both a number and a unit.a conclusion or opinion that is formed because of known facts or evidencethe goal is to solve a problem by building or improving a product or process....

Section 3 Unit 15 (46) Word Search 2 2024-02-16

30 Items: (η) the physics(η) the science(το) the cause, reasonto discover, uncover, invent(η) the chemistry (fig or lit)(η) the (genre) science fiction(η) the method, system, fashion(το) the sample, specimen, tokento research, investigate, search(η) the energy, action, potential(ο) the (male) astronaut, cosmonautanalog, proportional, proportionate...

Melanie and Nathanyal 2025-09-21

50 Items: Nate’s dream carTheir street nameName of their dogNate’s high schoolBride’s first nameGroom's middle nameBride’s middle nameMelanie’s high schoolDay of their proposalMelanie’s Toyota modelMonth they got engagedNate’s gaming platformNate’s Ford truck modelNate’s type of chemistryWord on Melanie’s tattooCity they love living in...

Gases Word Search_S2b 2024-11-20

21 Items: The Kelvin scaleThe SI unit of pressureTending to vaporize easily.An instrument used to measure atmospheric pressure.Average distance a molecule travels between collisionsThe pressure due to any individual component in a gas mixture.An instrument used to determine the pressure of a gaseous sample,...

Gases Word Search 2024-09-20

21 Items: The Kelvin scaleThe SI unit of pressureTending to vaporize easily.An instrument used to measure atmospheric pressure.Average distance a molecule travels between collisionsThe pressure due to any individual component in a gas mixture.An instrument used to determine the pressure of a gaseous sample,...

Rocks and Minerals Word Search SWHS INVITATIONAL 2025 2025-12-03

20 Items: Which mineral is a common mafic silicate found in basalt and gabbro with two cleavages near 90°?Which fine-grained extrusive igneous rock has felsic composition, often showing porphyritic texture?Which mineral is extremely soft (hardness 1), feels soapy, and forms from metamorphism of ultramafic rocks?...

Unit 3 Vocabulary Crossword 2023-02-23

25 Items: The chromosomes duplicated in ____.The Mona Lisa is famous for her ____ smile.It was a very hot day so Joe walked at a ____ pace.Alice in the Looking glass has many ____ characters.The term ‘Karen” often refers to a rather litigious woman.Sherlock Holmes’s ____ is what made him such a good detective....

Unit 45-46 2024-02-07

50 Items: technological(color) copper(color) silver(η) the science(το) the plasticof or made of glassof or made of plastic(η) the temperature, heat(το) the cement, concrete(η) the (female) scientistof or made of stone or rock(ο/η) the (m or f) scientist(ο/η) the (m or f) biologist(η) the chemistry (fig or lit)(η) the (genre) science fiction...

Engineers A to Z 2023-01-24

26 Items: Investigate force and motion by working in teams to complete design challenges and build ramps and pathways!Introduction. Genetic engineers alter, splice, eliminate, and rearrange genes in order to modify an organism or groups of organisms....