14 Items: prey • niche • energy • habitat • predator • producer • consumer • ecosystem • herbivore • carnivore • community • adaptation • population • competition

14 Items: birth • group • fossil • migrate • mimicry • survive • resource • ecosystem • adaptation • camouflage • extinction • competition • environment • hibernation

14 Items: rock • fossil • grotto • hiking • reptile • Warbler • catfish • cypress • preserve • wildlife • ecosystem • limestone • stalactite • pollinator

16 Items: floor • cereal • serial • forest • austere • procedure • ecosystem • adjudicate • adjacently • damagingly • exaggerate • understorey • environment • suggestively • conservation • refrigeration

16 Items: dry • land • sand • death • Sahel • cycle • global • warming • gullying • sandstorm • migration • ecosystem • Overgrazing • hydrological • deforestation • Desertification

16 Items: Recycle • Pollution • Ecosystem • FossilFuels • Conservation • Biodegradable • GlobalWarming • Deforestation • NotillFarming • NaturalResources • Nonbiodegradable • HumanInteraction • GreenHouseEffect • EmissionReduction • RenewableResources • WatershedManagement

16 Items: BIOTIC • Social • ECOLOGY • ABIOTIC • AQUATIC • Edaphic • Climatic • ECOLOGIST • ECOSYSTEM • TIDEPOOLS • ECOLOGICAL • COMPONENTS • Autotrophs • TERRESTRIAL • Detritivores • Heterotrophs

20 Items: safe • save • water • reuse • fresh • water • waste • water • sewer • water • world • reduce • ground • energy • reverse • drinking • recycling • ecosystem • pollution • filtration

17 Items: rare • life • cycle • change • global • recycle • ecology • climate • warming • landmill • ecosystem • biohazards • extinction • geothermal • inhabitants • conservation • biodegradable

17 Items: Prey • Flood • Impact • Thrive • Perish • Drought • Organism • Carrying • Capacity • Predator • Producer • Consumer • Community • Ecosystem • Population • Environment • Overpopulation

17 Items: knelt • patch • pride • future • sorted • blooms • beamed • thrive • project • cracked • worried • trenches • sprouted • community • ecosystem • overwhelmed • instructions

17 Items: asia • congo • humid • light • amazon • canopy • carbon • rainfall • emergent • australia • ecosystem • medicines • decompose • understorey • groundlayer • temperature • biodiversity

17 Items: Orbit • Solar • Energy • Carbon • Gravity • Climate • Friction • Ecosystem • Renewable • Magnetism • Atmosphere • Adaptation • Electricity • Evaporation • Biodiversity • Conservation • Photosynthesis

17 Items: ice • sea • gas • graph • energy • nature • climate • wildlife • pollution • wildfires • ecosystem • greenhouse • extinction • enviroment • atmosphere • fossilfuels • globalwarming

17 Items: ecology • species • habitat • zoology • research • trapping • wildlife • ecosystem • mammology • telemetry • biologist • monitoring • endangered • population • ornithology • biodiversity • conservation

15 Items: dry • soil • arid • land • desert • drought • erosion • rainfall • infertile • ecosystem • irrigation • overgrazing • unproductive • climatechange • deforestation

15 Items: sun • apex • energy • foodweb • pyramid • ecology • tertiary • producer • calories • consumer • ecosystem • carnivore • secondary • quartenary • decomposers

15 Items: Crops • Burrow • Climate • BeeHive • Flowers • Attract • Shelter • Sunshine • Rainfall • Ecosystem • Pollution • Butterfly • Temperate • FoodSupply • Environment

15 Items: Reuse • Reduce • Carbon • Energy • Compost • Climate • Recycling • Pollution • Renewable • Ecosystem • Greenhouse • Environment • Conservation • Biodiversity • Sustainability

15 Items: Fox • Prey • Hawk • Grass • Energy • Rabbit • Habitat • Predator • Consumer • Producer • Omnivore • Herbivore • Carnivore • Ecosystem • Decomposer

15 Items: Dump • Carbon • Ecology • Biosphere • Ecosystem • Atmosphere • Geothermal • Windenergy • Contaminate • Biodiversity • Energysource • Biodegradable • Carbondioxide • Energyefficient • Greenhouseeffect

15 Items: Waste • Toxins • Runoff • Debris • Ingestion • Ecosystem • Pollution • Degradation • Plasticizers • Entanglement • Microplastics • Contamination • Petrochemicals • Bioaccumulation • Nonbiodegradable

19 Items: Oil • life • Trash • Human • Marine • Sewage • Runoff • Toxins • Animals • Garbage • Quality • Mistakes • Pollution • Ecosystem • Freshwater • Groundwater • Fertilizers • Environmental • Contamination

19 Items: ocean, • river, • desert, • island, • plateau, • volcano, • glacier, • climate, • geology, • mountain, • latitude, • continent, • peninsula, • ecosystem, • longitude, • topography, • population, • cartography, • urbanization

19 Items: dune • tide • beach • cliff • waves • swash • groyne • erosion • wetland • current • solution • abrasion • backwash • attrition • shoreline • estuaries • ecosystem • coastlines • breakwater

19 Items: Rare • Pigs • Goats • Sheep • Quails • Genetic • Habitat • Ecology • Turkeys • Breeding • Ecosystem • Evolution • GuineaPig • Population • Adaptation • Pollination • Biodiversity • Conservation • Sustainability

19 Items: river • reuse • stream • darter • reduce • recycle • mussels • protect • restore • sustain • coexist • crayfish • conserve • pollinate • ecosystem • repurpose • community • greenbrier • environment

18 Items: Niche • Desert • Tundra • Species • Climate • Predator • Survival • Organism • Resources • Ecosystem • Adaptation • Structural • Camouflage • Rainforest • Behavioural • Environment • Competition • Adaptability

18 Items: Trade • Region • Plateau • Climate • Equator • Economy • Erosion • Landform • Scarcity • Consumer • Geography • Pollution • Ecosystem • Environment • HumanResource • Specialization • CapitalResource • OpportunityCost

14 Items: ocean • inform • relyon • impact • severe • plants • decline • seafood • sardines • essential • ecosystem • herbivore • definitely • individual

14 Items: ecology • foodweb • organism • nutrient • producer • consumer • ecosystem • foodchain • competition • bioticfactor • abioticfactor • limitingfactor • invasivespecies • carryingcapacity

14 Items: prey • plants • energy • animals • foodweb • predator • consumer • omnivore • producer • foodchain • carnivore • herbivore • ecosystem • decomposer

14 Items: zoo • lab • ocean • biome • monkey • marine • biology • ecology • zoology • dolphin • wildlife • ecosystem • observation • conservation

14 Items: zoo • lab • ocean • biome • monkey • marine • biology • ecology • zoology • dolphin • wildlife • ecosystem • observation • conservation

13 Items: Art • Fun • Value • Explore • Genuine • Community • Ecosystem • Networking • Recognition • Connections • Authenticity • Collaboration • Participation

13 Items: Biotic • Factor • Abiotic • Species • Limiting • Organism • Community • Ecosystem • Biosphere • Population • Competition • Hierarchical • Organization

20 Items: host • seek • prone • energy • factor • fungus • impact • benefit • maximum • minimum • consume • likewise • category • parasite • ecosystem • decompose • infection • recreation • consequence • photosynthesis

20 Items: Gas • Fuel • Ozone • Carbon • Fossil • Dioxide • Climate • Habitat • Species • Invasive • Resource • Ecosystem • Pollutant • Adaptation • Atmosphere • Endangered • Greenhouse • Mitigation • Biodiversity • Conservation

20 Items: reuse • energy • reduce • natural • recycle • topsoil • omnivore • renewable • ecosystem • pollution • herbivore • fossilfuel • solarenergy • consumption • nonrenewable • conservation • biodegradable • globalwarming • sustainability • greenhouseeffect

20 Items: prey • soil • cycle • biotic • matter • biomass • abiotic • predator • producer • consumer • herbivore • carnivore • scavenger • nutrients • ecosystem • decomposer • succession • equilibrium • sustainability • photosynthesis

20 Items: biome • fauna • mammal • zoology • ethology • poaching • predator • ecosystem • migration • sanctuary • scavenger • camouflage • endangered • habitation • endothermic • hibernation • ornithology • territorial • biodiversity • conservation

20 Items: earthsci • greentech • renewable • ecosystem • ecoimpact • biodiverse • carbonfoot • geomapping • atmosphere • ecoresearch • ecofriendly • climatehope • weathertech • cleanenergy • greenplanet • climatetech • climatestudy • conservation • oceanography • sustainability

20 Items: tree • fear • voice • school • friend • eclair • skewer • secret • teacher • silence • demerit • healing • vespiary • ingrates • artichoke • marinated • ecosystem • melancholy • impeccable • gelatinous

20 Items: care • flora • fauna • purity • harmony • renewal • ecology • balance • rebirth • serenity • vitality • ecosystem • recycling • renewable • resilience • protection • conservation • biodiversity • preservation • sustainability

20 Items: taiga • tundra • desert • alpine • climate • aquatic • savanna • wetland • estuary • mangrove • ecosystem • grassland • chaparral • coralreef • vegetation • adaptation • terrestrial • biodiversity • temperateforest • tropicalrainforest

20 Items: polar • depot • scott • krill • museum • treaty • awkward • quality • species • natural • whaling • glacier • plateau • drilling • pristine • decision • protocol • ecosystem • enthusiasm • opportunity

20 Items: Birch • Maple • Roots • Trunk • Mulch • Xylem • Willow • Linden • Phloem • Redwood • Compost • Tillage • Chestnut • Sycamore • Deciduous • Nutrients • Ecosystem • Coniferous • Fertilizer • Chlorophyll

20 Items: DATA • FALCON • GLOBAL • MONTHS • FRAGILE • AOTEAROA • DARKNESS • SCOTTBASE • KNOWLEDGE • ICESHEETS • DISCOVERY • ECOSYSTEM • ANTARCTICA • SCIENTISTS • INVESTIGATE • ENVIRONMENT • INSTRUMENTS • STEWARDSHIP • SUSTAINABLE • CONSERVATION

20 Items: bony • phenom • frenzy • talent • corner • dribble • dunking • yelling • scraping • pressure • harmless • shoelaces • ecosystem • pirouetted • recruiting • committing • scholarship • detrimental • expectations • specialization

20 Items: biome • session • decision • illusion • petition • Yanomami • anaconda • obsession • ecosystem • cassowary • aggression • confession • persuasion • indigenous • sustainable • development • subscription • urbanisation • comprehension • deforestation

20 Items: REUSE • RIVER • DARTER • NATURE • REDUCE • STREAM • COEXIST • MUSSELS • PROTECT • RECYCLE • RESTORE • SUSTAIN • CONSERVE • CRAYFISH • COMMUNITY • ECOSYSTEM • POLLINATE • REPURPOSE • GREENBRIER • ENVIRONMENT

20 Items: reuse • toxic • reduce • ecology • erosion • habitat • natural • organic • recycle • wetland • landfill • resource • decompose • ecosystem • pollutant • renewable • disposable • environment • solarenergy • globalwarming

20 Items: FoodWeb • Ecosystem • FoodChain • Symbiosis • Mutualism • Resources • Predation • Structural • Functional • Camouflage • Parasitism • Adaptations • Behavioural • Competition • Commensalism • Extremophiles • Intraspecific • Interspecific • Interdependence • CarryingCapacity

20 Items: reuse • toxic • reduce • ecology • erosion • habitat • natural • organic • recycle • wetland • landfill • resource • decompose • ecosystem • pollutant • renewable • disposable • environment • solarenergy • globalwarming

20 Items: reuse • toxic • reduce • ecology • erosion • habitat • natural • organic • recycle • wetland • landfill • resource • decompose • ecosystem • pollutant • renewable • disposable • environment • solarenergy • globalwarming

20 Items: reuse • toxic • reduce • ecology • erosion • habitat • natural • organic • recycle • wetland • landfill • resource • decompose • ecosystem • pollutant • renewable • disposable • environment • solarenergy • globalwarming

20 Items: ferry • canary • cymbal • pyramid • pyjamas • bursary • library • journey • lullaby • equator • industry • cyclical • hysteria • auxiliary • gymnasium • ecosystem • demography • psychology • distinctive • deforestation

20 Items: Solar • Planet • Energy • Matter • Algebra • Culture • Biology • Decimals • Latitude • Invention • Fractions • Ecosystem • Longitude • Experiment • Atmosphere • Government • Electricity • Measurement • Constitution • Photosynthesis

20 Items: atom • neon • xenon • carbon • energy • element • foodweb • glucose • organic • digital • molecule • periodic • nitrogen • chemical • reaction • ecosystem • dissection • heavymetals • respiration • photosynthesis

20 Items: Prey • Mammal • Insect • Scales • Talons • Reptile • Habitat • Predator • Feathers • Omnivore • Amphibian • Nocturnal • Ecosystem • Migration • Carnivore • Herbivore • Camouflage • Vertebrate • Endangered • Hibernation

20 Items: Space • Orbit • Storm • Earth • Energy • Matter • Fossil • Magnet • Volcano • Seasons • Animals • Weather • Planets • Gravity • Habitat • Ecosystem • Scientist • Experiment • Hypothesis • Microscope

20 Items: Plain • River • Ocean • Human • Region • Valley • Desert • Climate • Plateau • Glacier • Equator • Culture • Landform • Mountain • Latitude • Physical • Geography • Elevation • Ecosystem • Freshwater

20 Items: Green • Reuse • Carbon • Energy • Reduce • Future • Climate • Compost • Habitat • Balance • Renewable • Recycling • Ecosystem • Resources • Emissions • Pollution • Environment • Conservation • Biodiversity • Preservation

20 Items: BACTERIA • BIOSPHERE • NUTRITION • ECOSYSTEM • BLACKHOLE • CHROMOSOME • MICROSCOPE • EXPERIMENT • RESPIRATION • NUCLEICACID • FOSSILFUELS • CHLOROPHYLL • MITOCHONDRIA • IMMUNESYSTEM • BIOMOLECULES • REFORESTATION • GLOBALWARMING • TRANSPIRATION • PHOTOSYNTHESIS • ENDOPLASMICRETICULUM

20 Items: Benedict • pathogen • Antibody • Ecosystem • Symbiosis • Digestive • Mutualism • Amphibians • Oesophagus • Defecation • Absorption • Biodiversity • Dicotyledons • Commensalism • Assimilation • Phagocytosis • Immunisation • Saprophytism • Invertebrates • Transpiration

20 Items: pang • muted • lurked • greasy • raging • ordeal • Brother • despair • savages • chamber • humanity • palpable • orphaned • ecosystem • delusions • instincts • exhaustion • memorandum • wastelands • nothingness

19 Items: prey • beak • raptor • talons • energy • foodweb • barnowl • snowyowl • consumer • producer • omnivore • owlpellet • carnivore • foodchain • ecosystem • nutrients • decomposer • silentswoop • trophiclevel

19 Items: Glacier • Succeed • Whaling • Decision • Economic • Evidence • Icebound • Pemmican • Pristine • Depletion • Ecologist • Ecosystem • Geologist • Longitude • Permanent • Ecotourism • Sufficient • Conatradict • Extravagant

20 Items: rays • host • Prey • plover • whales • sharks • Remora • anemone • leeches • Habitat • Predator • clownfish • crocodile • symbiosis • organisms • Mutualism • Symbiosis • Ecosystem • parasitism • commensalism

19 Items: HOST • IMMUNE • OBESITY • BACTERIA • GUTBRAIN • DIGESTION • INTESTINE • SYMBIOSIS • NUTRIENTS • DIVERSITY • ECOSYSTEM • MICROBIOME • PROBIOTICS • PREBIOTICS • MICROFLORA • ANTIBIOTICS • HOMEOSTASIS • FERMENTATION • INFLAMMATION

13 Items: Humans • Plants • Region • Animals • Species • Bacteria • Ecosystem • Reproduce • Extinction • Endangered • Consumption • Biodiversity • Conservation

13 Items: eco • earth • grass • ocean • oxygen • animals • conserve • ecosystem • renewable • fossilfuels • icineration • zeroemission • thecanopyproject

13 Items: Trees • Timber • Logging • Climate • Habitat • Wildlife • Ecosystem • Endangered • Biodiversity • Conservation • Deforestation • Reforestation • Sustainability

13 Items: Art • Fun • Value • Explore • Genuine • Community • Ecosystem • Networking • Recognition • Connections • Authenticity • Collaboration • Participation

13 Items: paper • water • nature • science • recycle • plastic • conserve • aluminum • preserve • ecosystem • naturalresource • renewableresource • nonrenewableresource

13 Items: NATIVE • SPREAD • DAMAGE • PLANTS • INFEST • SPECIES • HABITAT • CONTROL • INVASIVE • PREDATOR • DISTRUPT • ECOSYSTEM • FOODCHAIN

20 Items: carbon • biomes • tundra • ecology • foodweb • hydrogen • paradigm • ecosystem • fungicide • herbicide • foodchain • pesticides • fertilizer • environment • insecticide • borealforest • biodiversity • photosynthesis • acidprecipitation • cellularrespiration

20 Items: cause • biotic • effect • change • energy • factors • abiotic • succeed • climate • pyramid • primary • survival • tertiary • consumer • producer • ecosystem • secondary • connecting • population • relationships

20 Items: coral • ocean • sonar • acidic • impact • ashore • trouble • fishing • farming • harmful • species • diverse • survive • offshore • pollution • Caribbean • ecosystem • population • environment • manufacturing

20 Items: hill • cave • path • size • sale • bush • beach • cliff • label • stream • valley • habitat • bargain • receipt • barcode • protest • discount • ecosystem • recycling • waterfall

20 Items: topsoil • aquifer • biomass • recycle • habitat • mineral • landfill • biosphere • depletion • ecosystem • renewable • extraction • fertilizer • agriculture • reclamation • biodiversity • biodegradable • deforestation • sustainability • hydroelectricity

20 Items: atom • plates • fossil • science • sunrays • climate • periodic • research • question • chemical • genetics • cellular • electron • ecosystem • experiment • hypothesis • microscope • metamorphic • ultraviolet • photosynthesis

20 Items: tree • fear • voice • school • friend • eclair • skewer • secret • teacher • silence • demerit • healing • vespiary • ingrates • artichoke • marinated • ecosystem • melancholy • impeccable • gelatinous

20 Items: scene • rushed • echoed • thrive • special • project • revival • clutched • sprouted • nurtured • bustling • trenches • guidance • brimming • concerned • ecosystem • excitement • beneficial • rejuvenated • contribution

20 Items: biotic • biomes • abiotic • autotroph • ecosystem • carbonsink • decomposer • fossilfuel • homeostasis • assimilation • biodiversity • commensalism • conservation • pioneerspecies • climaxcommunity • denitrification • keystonespecies • invasivespecies • primarysuccession • secondarysuccession

20 Items: vieques • ecosystem • puertorico • marinelife • ecotourism • coastalarea • biodiversity • conservation • nightkayaking • glowinthedark • naturereserve • marinebiology • bioluminescence • dinoflagellates • aquaticorganisms • naturalphenomenon • tourismdestination • sustainabletourism • environmentaleducation • environmentalprotection

20 Items: polar • depot • scott • krill • museum • treaty • awkward • quality • species • natural • whaling • glacier • plateau • drilling • pristine • decision • protocol • ecosystem • enthusiasm • opportunity

20 Items: Change • Carbon • Oceans • Energy • Impact • Climate • Warming • Methane • Melting • Glaciers • Heatwave • Emissions • Pollution • Ecosystem • Greenhouse • Temperature • Biodiversity • Conservation • Deforestation • Sustainability

20 Items: REI • Snow • Pass • Gear • Poles • Shoes • Views • Guides • Winter • Trails • Explore • Exercise • December • Mountain • Cascades • Adventure • Evergreen • Ecosystem • Snoqualmie • Experience

20 Items: lianas • wholly • ancient • bettong • fossils • logging • anaconda • petition • physical • piranhas • alkaloids • chemicals • ecosystem • efficient • symbiosis • aggression • persuasion • evaporation • fascinating • urbanisation

20 Items: Boom • Bribe • Erode • Desert • Mining • Permit • Profit • Quartz • Binding • Dredger • Mineral • Activist • Concrete • Corrosion • Ecosystem • Hierarchy • Microchip • Renewable • BlackMarket • Nonrenewable

20 Items: Earth • Trees • Green • Clean • Ocean • Reuse • Nature • Planet • Energy • Reduce • Recycle • Climate • Habitat • Compost • Wildlife • Pollution • Ecosystem • Environment • Conservation • Sustainability

20 Items: ozone • forest • carbon • nature • recycle • climate • habitat • compost • organic • wildlife • pollution • ecosystem • renewable • rainforest • extinction • greenhouse • conservation • biodiversity • deforestation • sustainability

20 Items: solar • compost • recycle • organic • habitat • conserve • emission • windmill • greening • renewable • ecosystem • hydration • pollution • biosphere • rainwater • footprint • plantation • ecofriendly • sustainable • biodegradable

20 Items: nymph • enemy • pigeon • allies • meadows • carrier • Genghis • katydids • critters • harmless • backpack • mountain • ecosystem • lifeguard • orthoptera • messengers • California • grasshopper • fascinating • surroundings

20 Items: Rags • Waste • Reuse • Pants • Jeans • Dress • Shirt • Socks • Reduce • Crafts • Recycle • Climate • Jackets • Scissors • Creative • Ecosystem • Refashion • Pollution • Environment • Conservation

20 Items: Bison • Magma • Caldera • Geysers • Aquifer • Tourism • Grizzlies • Tectonics • Ecosystem • Wildfires • Geothermal • OldFaithful • Supervolcano • Thermophiles • Hydrothermal • Biodiversity • Conservation • ThermalPools • LavaCreekTuff • Reintroduction

20 Items: Reef • Fish • Deep • Waves • Tides • Coral • Whale • Shark • Trench • Dolphin • Seaweed • Coastal • Habitat • Seafloor • Plankton • Saltwater • Pollution • Ecosystem • Submarine • Exploration

20 Items: Finite • Overuse • Habitat • Renewable • Resources • Ecosystem • Pollution • Recycling • Emissions • Management • Extraction • Consumption • Fossilfuels • Agriculture • Degradation • Nonrenewable • Conservation • Biodiversity • Deforestation • Sustainability

21 Items: Poles • Spheres • Equator • Habitat • Sunlight • Biosphere • Organisms • Pollution • Ecosystem • Atmosphere • WaterCycle • Irrigation • Lithosphere • Hydrosphere • EarthSystems • Biodiversity • Conservation • Conservation • Sustainability • NaturalResources • Interconnectedness