Many of the images and instructional resources that we have made available on Tuva have been licensed under a Creative Commons License by their creators. These works have been made available under the Attribution (CC BY) or the Attribution-ShareAlike (CC BY-SA) Licenses.
Our sincere thanks to all the photographers around the world who have captured the beautiful, thought-provoking images, and made them available for us to use for our datasets.
Population and Energy Consumption in Texas: Baytownbert
Population & Energy Consumption in Rhode Island: W. L. Tarbert
Population and Energy Consumption in CA: BenSherman
Games won by the Yankees and Red Sox: Ryosuke Yagi
2012 SAT Scores of 32 Brooklyn High Schools: Photo by Nguyen Dang Hoang Nhu
Varying Population Growth Among Nations: Pavel Novak
Global Food Prices Since 2001: Unknown
Population of the Bronx by Zip Code in 2010: Gryffindor
Population and Energy Consumption in CT: Para
Resident Population in Washington: Mark Wagner
Population & Energy Consumption in PA: Arturo Ramos
Population and Energy Consumption in Florida: Wknight94
Population and Energy Consumption in Georgia: Georgia Tech Research Institute
Population & Energy Consumption in NJ: TruffShuff
Population and Energy Consumption in CO: Steve Wilson
Population & Water Consumption in Arvada, Colorado: ChrisEngelsma
Asthma, Diabetes, & Obesity Rates In the Bronx: Jim.henderson
Tourism in India since 1991: Kumaravels
BMX Dirt-bike Racing: Fabrizio
Top 10 Art Museums In the World - By Attendance: Benh LIEU SONG
Team Breakdown - Nuggets vs. Rockets: Jose Garcia
Top 15 Amusement Parks in North America: Sarah Ackerman
Michigan Economy by Area: Patricia Drury
Life Expectancy in 40 Nations (Simplified): Toshimasa Ishibashi
Life Expectancy in Nations Since 1980: Rod Long
National Happiness Index - Example Indicators: Maureen Didde
Deforestation in the Amazon Jungle: Matt Zimmerman
Population and Energy Consumption in KY: The Pug Father
Life Expectancy in 40 Nations (2020): Aaron Bradford
Salary Differences Between Men & Women in US: Tim Mossholder
Air Pollution from Carbon Monoxide: Marcin Jozwiak on Unsplash
Obesity, ages 2-19 in the US: Peggy Greb, U.S. Department of Agriculture
Winter Olympics: Going Back in History: Jon Wick
Population of Oakland, CA By Race: Basil D Soufi
The Dark Side of Chocolate: John Loo
Public Charity in the United States: Riccardodalben
Becoming Barbie: Tracheotomy Bob
Take the Bully by the Horns: Maryland GovPics
Stop the Trafficking: Imagens Evangélicas
Earth's Overdrawn Account: Vmenkov
Fighting World Hunger: FMSC Distribution Partner - Risen Savior Missions
The AIDS Epidemic in the US: Center for Disease Control
The Powerlessness of Poverty: Jonathan McIntosh
Top US Metros for Fashion Designers: José Goulão
2013-14 National Girls High School Softball: Ralph Arvesen
Soaring High with Falcons: Craig ONeal
Athletic Training Certification in the US: www.localfitness.com.au
Can Plants Save the World?: JLHA3050
Rise of Mobile Phones in South Africa: Simon Berry
Historic Drought in California: National Oceanic and Atmospheric Administration
Global Happiness Project - Survey Data: Tyler Olson
The United States Military: U.S. Department of Defense
The Legacy of Imperialism in Africa: U.S. National Archives and Records Administration
Election of the Indian Parliament: Shahnoor Habib Munmun
The US Economic Boom of the 1950s: David Shankbone
Jewish Migration out of Europe: The Palmach Archive
Welfare Benefits in the United States: U.S. Navy photo by Chief Mass Communication Specialist Steve Johnson
Top 25 NBA Players Of All Time: Photo by Erik Drost CC BY 2.0 DEED
Arctic Sea Ice in March & September: National Snow & Ice Data Center
The Rising Income Inequality in the US: Daniel Case
Income Inequality in the US Since 1947: US Census Bureau
Radio Controlled Cars: Itrados
Rise of Cooking Shows in the US: Scandic Hotels
FIFA World Cup - All Time Rankings: Bet_Noire
US Rare Earth Mining and Sales of Electronics: Martin Röll
History of Wheat Production in Kansas: Takkk
Educational Attainment in US By Gender: COD Newsroom
Atmospheric CO2 and Ocean pH: Toby Hudson
US Medical School Graduates by Sex: Bob211
GMOs, Pesticides, and Bee Population in the US: John Severns
Products Recovered Through Recycling in US: Guinnog
Sea Level Rise in the US: Gryffindor
Tobacco and Jamestown Economy: David from Washington, DC
Population and Energy Consumption in Kansas: Leaflet
NFL 2013 - Team Offense & Defense Statistics: Derrick S.
United States House of Representatives: Lawrence Jackson
Mammals Near Extinction: Dave Pape
United States Presidents: White House
US Declaration of Independence: Public Domain
Periodic Table - Meet the Elements: Alchemist-hp
Oscar Winners since 1929: Prayitno
Top 100 Movies Of All Time: hashi photo
2014 West Africa Ebola Outbreak: CDC
Canada Population By Age - 2011 Census: Jphillips23
Provinces of China: J. Patrick Fischer
Apple Production: Sven Teschke
Apple Production: Sven Teschke
Planets - Giants and Dwarfs: NASA
Volcanic Eruptions Around The World: Steven W. Dengler
Tall Buildings Of The World: Nepenthes
History of the Olympics: Berliner Illustrierte Zeitung
World Wildlife Population: Doug Janson
Nearest and Brightest Stars: ESO - Claus Madsen
Properties of Rocks and Minerals: JJ Harrison
Space, Pets, and Lawyers: Heidelberger Life-Science Lab
Lawyers and Honeybees: Björn Appel
Major Cities in Florida: Jon Zander (Digon3)
Gravity Recovery and Climate Experiment: Hannes Grobe, AWI
Major Cities in Alabama: Eric in SF
Degrees Conferred to Women - By Major: Essexknowledge
Thermal Properties of Materials (Part 1): NASA
Thermal Properties of Materials (Part 2): NASA
Periodic Table - Properties of Elements: Marcel
Bay Area Science Festival - 2014: FG Trade
South Dakota - Energy and Population: ChristofferRiemer
US Crime Statistics: 1960 - 2012: Yumi Kimura
Devastating Earthquakes: Esteban Maldonado
Energy Consumption - USA vs. the World: Gretar Ívarsson
Nobel Peace Prize Winners: ProtoplasmaKid
US Aid to Pakistan: United States Coast Guard
Social Progress Index: Justin Ormont
The Mayflower Passengers: Wenceslaus Hollar
Black Friday: Photo by Ivan Samkov via Pexels
The Price of Thanksgiving Dinner: Marcus Quigmire
US Naturalization through the Years: NPS photo by Neal Herbert
Executive Orders and Vetoes by US Presidents: Lawrence Jackson
GMRI Purple Loosestrife Data: Ivar Leidus
Pixar vs DreamWorks: Brian Mcgowan
Global Change: http://www.banksy.co.uk/
Voter Turnout by Year and Age Group: Pete Souza
Homelessness in the United States: Franco Folini
World War II - The Eastern Front: Unknown
Who Receives the Most US Foreign Assistance?: U.S. Navy
World War II - Military Strength and Casualties: United States Marine Corps
The Holocaust and Hitler's Final Solution: United States Holocaust Museum
World War II - Tank and Aircraft Production: Jerry J. Jostwick
Cycles of the Moon, Earth, and Sun: Orion 8
Cuba: 1976 to 2013: Marco Zanferrari
Sunspot Cycle and Space Weather: Hans Bernhard
Annual Newspaper Advertising Expenditures: Khantipol
Census At School - Raw Data: U.S. Army RDECOM
Census At School - Clean Data: U.S. Army RDECOM
Nuclear Power Plants from Around the World: Stefan Kühn
Passengers of the Titanic: F.G.O. Stuart
Heart Rate Survey Data: rosmary
Viruses & Bacteria: Dr Graham Beards
Heights of Political Leaders: The White House
US Slave Trade (Part 1): Unknown
Slave Trade (Part 3): Supportstorm
Land Animal Features: katsrcool (CC BY 2.0)
Notable Asteroids: NASA/JPL-Caltech
China or the USA, Who Eats More Meat?: _BuBBy_
Radiation Exposure: Ed Siasoco
Historic Snowfall in the Northeast: AgnosticPreachersKid
Tornadoes in the Past Decade: Chris Spannagle
Super Bowl Ads and Viewership: istock
Earth's Gravitational Field: Hannes Grobe, AWI
Wild Grass, CO2, & Temperature: Javier martin
Antioxidants in Foods: Jennifer Birgl
Periodic Tides in Hawaii, 96 Hours: Alvesgaspar
Periodic Tides in Hawaii, 660 Hours: Alvesgaspar
Measles Cases & Vaccine Rates: 6 Countries: DFID - UK Department for International Development
Measles Cases Around the World, 2009 - 2012: Cynthia S. Goldsmith
North Atlantic Hurricane Tracks: Creative Commons Attribution-Share Alike 3.0 Unported license
Hurricane Sandy, Her Brothers and Sisters: NASA
Census of Juveniles in Residential Placement: Ammodramus
Densities of Materials: José Manuel Suárez
Copper Wires and Electricity: Averse
Basic Elements: Humans, Earth, & the Universe: ESO/S. Brunier
Speed of Sound: Ensign John Gay, U.S. Navy
Half-life of Isotopes: Department of Energy
Marine Animal Features: Truncatus
Index of Refraction: Zátonyi Sándor
Solar Irradiance: Jessie Eastland
Buoyancy in Water and Mercury: OS2 JOHN BOUVIA
Compressibility Factor of Air: free of copyrights under Creative Commons CC0.
Ideal Gas Law Applied to Different Gases: Brocken Inaglory
Ideal Gas Law: Bob Cahalan, NASA
Earthquakes from 2000 to 2003: Esteban Maldonado
Avogadro's Law: Sanjay Acharya
Boyle's Law of P & V: Photo by Crystal Kwok on Unsplash
Charles's Law of V & T: Tiddly Tom
Gay-Lussac's Law of P & T: Evan Mason
Tracking a Weather Balloon: https://creativecommons.org/licenses/by/2.0/
Arby's Menu: Photo by Fernando Andrade on Unsplash
Top Home Run Hitters of 2014: Richard Anderson
Baseball Physics in Motion - 1: Caitlin Conner
Baseball Physics in Motion - 2: Ben Hershey
Periodic Table - Forty Elements: Ed Uthman, Houston, Texas, USA
National Health and Nutrition Examination Survey: Almonroth
Annual Freshwater Withdrawals: By Sianid poisen - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=77228902
How Many M&Ms in Each Bag?: Evan-Amos
Estimated Numbers of HIV Diagnoses by Race: National Institutes of Health (NIH)
Sea Ice and Snow Cover, 2000 - 2015: Acaro
Global Temperature Anomalies, 1880 - 2014: Giorgiogp2
Numbers of HIV by Transmission Type: LGBT Free Media Collective
Estimated Numbers of HIV Diagnoses by Sex: Jonrawlinson
Populations of Males & Females: chensiyuan
Top 50 Metropolitan Areas: Getfunky
World Population: Past & Future: McKay Savage
NAFTA Job Loss from 1993 to 1996: AlexCovarrubias
US Trade with Mexico and Canada: AlexCovarrubias
Chesapeake Bay: Underwater Bay Grass: NASA Goddard Space Flight Center
Estimated Streamflow: Chesapeake Bay: Nora lives
Fish Caught in Maryland: Pedro Ramirez Jr./U.S. Fish and Wildlife Service
Police Serving their City: Nick.Allen
Demographics of Divorce: Ammodramus
Sleeping Habits by Age Group: epSos .de
Sleeping Habits of 12 States: Aaron Jacobs
Sleeping Habits by Marital Status: U.S. National Archives and Records Administration
US Population and Vehicles: Nandaro
American Colleges & Universities, 1993: sach1tb
American Baseball League Salaries, 2003: Keith Allison
Pizza Sizes and Toppings: Scott Bauer
Body Temperature & Heart Rate: Berthold Werner
Used GM Cars: Photo by Ivana Cajina
Sleeping Habits by Race/Ethnicity: Samantha Marx
Sleeping Habits of Males and Females: Jacob Bøtter
Sleeping Habits by Employment Status: Jeffrey Bary
Sleeping Habits by Educational Attainment: MC Quinn
Teacher Salary & Test Scores, 2001: U.S. National Archives and Records Administration
Communication Tech Adoption, USA: Simon A. Eugster
Transportation Tech Adoption, USA: Maxim Melnikov
Miss America: New York World-Telegram and the Sun staff photographer: Al Ravenna
Baby Weights & Gestation Length: Andrew Vargas
Roller Coasters Around the World: Jonrev
Teacher Salary & Test Scores, 2013: Jirka Matousek
NBA 2014-2015 Season: Chensiyuan
Marvel vs DC Movies: Yulia Matvienko
Low Birth Weight Study: Din Jimenez
Cereal Placement on Store Shelves: Photo by Franki Chamaki on Unsplash
Rock n' Roll Hall of Fame: brett jordan
Password Security Survey: Brian Ronald
Life's Biggest Regrets: Gordon Joly
Top Internet Browsers: Fabio Lanari
Social Political Views, Gallup Poll: Public Domain
Economic Political Views, Gallup Poll: Official White House Photo by Pete Souza
Access to Supermarkets in Philadelphia: Eric Hunt
NYC Employment Data 2014: Luca Bravo
Projectile Motion of a Steel Marble: Lucasbosch
El tiempo de San José: "AeropuertoJuanSantamaría". Licensed under Public Domain via Commons - https://commons.wikimedia.org/wiki/File:AeropuertoJuanSantamar%C3%ADa.jpg#/media/File:AeropuertoJuanSantamar%C3%ADa.jpg
Río Barranca: Christian Frausto Bernal
US Census (1900-1990): U.S. Census
Weather Over Kansas by Balloon: ARM Mobile Facility (AMF1)
Pencil Sharpener: Alexander Klink
Role of Women through American History: Burke & Atwell, Chicago (Photographer)
Book Measurements (Part 1): Ginny
Microwave Heating: Photo by Erik Mclean on Unsplash
Cuban Migration To Florida : US Census (1950-1990): Nightscream
California Gold Rush: US Census (1850-1900): G.F. Nesbitt & Co.
Traffic Accident Factors (US 2014): Transport For NSW (https://www.transport.nsw.gov.au/)
Global Gas Prices (1996 - 2012): Tewy
Mercury Levels In Tuna: Danilo Cedrone (United Nations Food and Agriculture Organization)
Penobscot Bay Temperatures: Yentpacrr
US Milk Production By Region & State: USDA
US Gas Prices (1996–2012): Mike Mozart
New England Ice-out Dates: Ken Gallager
STD Morbidity - US Northeastern Region: Center for Disease Control
Household Electricity Consumption By State: Kristoferb (talk)
Vostok Ice Core and Climate Change: NASA
Atlantic Hurricanes: U.S. National Oceanic and Atmospheric Administration
NFL Football Helmet Physics: http://www.flickr.com/photos/span112/2930036427/
Ocean Acidification Over Time: Albert Kok
Temperatures and Precipitation for Washington: AgnosticPreachersKid
Precipitation in Washington and Maine: Acadia National Park, ME
Old Faithful Eruption Times: Flicka
Flight Time And Distance: Wo st 01
Book Measurements (Part 2): Horia Varlan
Resources And Recycling: Andreas Feininger
Atmospheric Carbon Dioxide: Karolina Grabowska
Ring of Fire Earthquakes (1890–2011): Gringer
Flow Rates in Two US Rivers: Photo by Glen Chambers, CC by 2.0. The image has not been altered.
Washington Weather: Cory Barnes
Historic Mineral Prices: Ra'ike
Snow Pack Study — Old Town, Maine: Emmanuel Boutet
Air Quality & Weather In Four US States: katgrigg
Air Pollution & Populations: Alexandrowicz, John L
Chromosome Counts For Species: Haggblom Lissa
Lake Temperature and Dissolved Oxygen: 3268zauber~commonswiki
Global Sea Level Rise: Adityamadhav83
Environmental Impact of Foods: Petr Kratochvil
Flow Of River Nile At Dongola: NASA
Sudan Household Survey Data: COSV
Sudan Population And Housing Census Data (2008): Karl Grobl/Education Development Center Inc.
Lake Chemistry: Blueeyedgabriel
Day Lengths In US Cities: Nicolas Raymond
Automobile Mileage Ratings (2012): M 93
Wave Height And Sediment Load: Brocken Inaglory
Loons And Mercury: Art Weber/U.S. Fish and Wildlife Service
Trends in Cancer Death Rates (1930–2011): Dr. Cecil Fox
Animal Gestation Periods And Lifespans: Gunner Ries Amphibol
Marathon Winning Times (2010-2016): Adrian Grycuk
African Elephant Populations: Thomas Breuer
Oldman River Sediment Load: Eddie Carle
Ozone Hole Size and CFCs: NASA
Coral Reef Bleaching in the Caribbean: 2006-2016: David Darom
Tide and Moon Cycles: JesseW900
Bylot Island Ecology: Ansgar Walk, CC BY-SA 2.5 <https://creativecommons.org/licenses/by-sa/2.5>, via Wikimedia Commons
Amylase Production (Part 2): A2-33
Preferences of Boys and Girls: Lars Bo Nielsen via Unsplash
Salinity and Temperature in an Estuary: Maine EPSCoR
Phytoplankton in the Gulf of Maine: Dave Townsend, University of Maine School of Marine Science
Life Expectancy In The US Since 1960: Vera Kratochvil
Light Moving Through Materials: By MarcellusWallace (Own work) [CC BY 3.0 (http://creativecommons.org/licenses/by/3.0)], via Wikimedia Commons
الحقيبة المدرسية: woodleywonderworks
Properties of Stars: Brightness and Temperature: European Space Agency (ESA/Hubble)
US Government Nutrition Program (2016-17): National Institute Of Health
Effect of Soil Salinity on Plant Growth: Photo by Tim McCabe, USDA Natural Resources Conservation Service.
Opposite Sides Of A Ruler: Thespaceface
Calcium and Blood Pressure: Jesse K. Alwin, U.S. Marine Corps
Age and Sign Readability: Photo by Andrew Valdivia on Unsplash
Forbes Boiling Points: Creative Commons
Wolf and Elk in Yellowstone: Yellowstone National Park from Yellowstone NP, USA
Lynx and Snowshoe Hare in Canada: Eric Kilby
Temperature Conversions: Tobias1983
Sea and Land Temperature Change: Kevin Gill
Light Absorption by Plant Pigments: Mindmatrix
Exercise Effects: Cat from Sevilla, Spain
Electoral College Results (1804 - 2020): Ibagli
Household Energy Consumption in Canada: DAR56
Cost of Fuel Consumed for Electric Power Generation in Canada: WinterE229 WinterforceMedia
Household Energy Consumption and Income in Canada: Guilhem Vellut from Vancouver, Canada
Electric Power Generation in Canada: Siemens
San Francisco Weather in October: capnvynl
Climate in Global Cities: Wikimedia Commons, by SuperJumbo 21
Smartphone Data Plans: tookapic
US Income Tax Brackets for Singles (2016): United States Department of the Treasury
The Growth of Sugar Kelp: NOAA
Ochre Sea Star Populations: Jerry Kirkhart from Los Osos, Calif. - Pisaster ochraceus (purple sea star or ochre sea star)
Atlantic Seafloor Magnetic Polarization: NOAA
Earth's Magnetic Fields: Dr. Gary A. Glatzmaier, Los Almos National Laboratory - US Dept. of Energy
Polar Sea Ice Extent: http://nsidc.org/
October Weather in US Cities: Alfred Schrock
Owl Limpet Populations: By Jerry Kirkhart - originally posted to Flickr as Owl Limpet, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=8673345
Eastern Pacific Sea Surface Temperatures: NASA
Electricity Use and State Population: Lesekreis
California Condors: Scott Frier - U.S. Fish and Wildlife Service
The Growth of Sugar Kelp (Part 2): Bjørn Christian Tørrissen
Galapagos Finch Population and Seed Counts: Putney Mark
Rainfall on Daphne Major (1974-1990): Sam LaRussa
Galapagos Finch Characteristics: John Gould
Water on Earth: Brocken Inaglory
Specific Heat of Common Materials: Public Domain CC0
Aquatic Organisms in Acidic Environments (Simplified): Connor Long
Hourly Buoy Temperatures in October: Yentpacrr
Primary Energy Consumption: Naotake Murayama
Comparison of ICBMs: U.S. Navy
Presidential Pardons: Gerald R. Ford Presidential Library
USA Economic Recessions: Library of Congress
Corpus Christi and Hurricane Harvey: By Official U.S. Navy Page from United States of AmericaU.S. Navy photo/U.S. Navy - An infrared satellite image of Hurricane Harvey, a category 2 hurricane., Public Domain, https://commons.wikimedia.o
Daylight Hours & Temperature Around the World: By Tesseract2 - Own workThis file was created with Blender., CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=22582618
Mitosis Phases in Onion Root Tip Cells: Doc. RNDr. Josef Reischig, CSc.
Thanksgiving Week Gas Prices: By Unisouth (Own work) [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0) or GFDL (http://www.gnu.org/copyleft/fdl.html)], via Wikimedia Commons
2018 New Year Dataset: State Population Changes: Ondrejk
Ocean Air and Water Temperatures: Ken Walker
Annual US Wildfires: By Unknown - nps.gov, Public Domain
Extinctions and Human Population: Yathin S Krishnappa
Giant Kelp Growth: NOAA National Ocean Service
Sixth Mass Extinction: By Rita Greer - The original is an oil painting on board by Rita Greer, history painter, 2012. This was digitized by Rita and sent via email to the Department of Engineering Science, Oxford University, where it was subsequently uploaded to Wikimedia.
Influenza Strains: Cynthia Goldsmith Content Providers(s), CDC/ Dr. Erskine. L. Palmer; Dr. M. L. Martin [Public domain]
Human Enzymes: By Yishuzhang (Own work) [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons
La contaminación del aire: Alexandrowicz, John L
Calidad del aire y clima en 4 estados de EE. UU.: katgrigg
Producción de amilasa, parte 2: A2-33
Huracanes atlánticos: U.S. National Oceanic and Atmospheric Administration
Polarización magnética del fondo marino atlántico: NOAA
Elementos básicos: humanos, tierra y el universo: ESO/S. Brunier
BMX Carreras de bicicletas: Fabrizio
Ecología de la Isla Bylot: Ansgar Walk, CC BY-SA 2.5 <https://creativecommons.org/licenses/by-sa/2.5>, via Wikimedia Commons
Cóndores de California: Scott Frier - U.S. Fish and Wildlife Service
¿Las plantas pueden salvar el mundo?: JLHA3050
Cromosoma Cuenta por Especie: Haggblom Lissa
Clima en las ciudades de Estados Unidos: Wikimedia Commons, by SuperJumbo 21
Arrecifes de Coral Blanqueamiento: David Darom
Ciclos de la luna, la tierra y el sol: Orion 8
Duración de los días en las ciudades de los Estados Unidos: Nicolas Raymond
Densidades de materiales: José Manuel Suárez
Terremotos devastadores: Esteban Maldonado
Dinosaurios: ScottRobertAnselmo
El campo gravitacional de la tierra: Hannes Grobe, AWI
Campos Magnéticos de la Tierra: Dr. Gary A. Glatzmaier, Los Almos National Laboratory - US Dept. of Energy
Cuenta de Sobregiro de la Tierra: Vmenkov
Elementos en la tabla periódica - Parte I: Alchemist-hp
Elementos en la tabla periódica - Parte II: Alchemist-hp
Efectos de ejercicio: Cat from Sevilla, Spain
Flujo de río Nilo en Dongola: NASA
Recuento de poblaciones y semillas de pinzones en Galápagos: Putney Mark
Cambio global: Brocken Inaglory
Calentamiento Global y Hielo Marino del Ártico: National Snow & Ice Data Center
OGM, plaguicidas y población de abejas en los EE. UU.: John Severns
Gases de efecto invernadero: Toby Hudson
Nevada histórica en el noreste: AgnosticPreachersKid
¿Cómo afectan los diferentes materiales a las ondas de luz?: By MarcellusWallace (Own work) [CC BY 3.0 (http://creativecommons.org/licenses/by/3.0)], via Wikimedia Commons
Índice de refracción: Zátonyi Sándor
Liebre de lince y raquetas de nieve en Canadá: Eric Kilby
Niveles de mercurio en el atún: Danilo Cedrone (United Nations Food and Agriculture Organization)
Estrellas más cercanas al sistema solar: ESO - Claus Madsen
Física del casco de fútbol NFL: http://www.flickr.com/photos/span112/2930036427/
Asteroides notables: NASA/JPL-Caltech
Acidificación del océano a lo largo del tiempo: Albert Kok
Carga de Sedimentos del Río Oldman: Eddie Carle
Tamaño del orificio de ozono y CFC: NASA
Temperaturas de la bahía de Penobscot: Yentpacrr
Planetas - Gigantes y enanos: NASA
Radiacion solar: Jessie Eastland
Velocidad del sonido: Ensign John Gay, U.S. Navy
Tiempo de reacción de mensajes de texto: Ed Brown as Edbrown05
La Física de Lanzar una Béisbol: Caitlin Conner
Tendencias en las tasas de mortalidad por cáncer (1930-2011): Dr. Cecil Fox
Tendencias de la tabla periódica: Ed Uthman, Houston, Texas, USA
Erupciones volcánicas en todo el mundo: Steven W. Dengler
Núcleo de hielo Vostok y cambio climático: NASA
Hierba silvestre, CO2 y temperatura: Javier martin
Lobo y alce en Yellowstone: Yellowstone National Park from Yellowstone NP, USA
Población Mundial de Vida Silvestre: Doug Janson
Montañas Rusas de Todo el Mundo: Jonrev
Dióxido de carbono atmosférico: Karolina Grabowska
New Mexico Big Horn Sheep Populations: Kim Keating, USGS photo
Cougar Mortality: National Park Service, K. Fink
Cambio de temperatura del mar y la tierra: Kevin Gill
Sound of a Whistle: Paul Vernon
Marine Debris Old version: ceridwen / Jetsam man at Aber Rhigian beach / CC BY-SA 2.0
Water Use in US States (2015): Vitaly
The World's Forests: Daniel Case
Visits to National Parks: Grand Canyon National Park
Hanging Slinky: Roger McLassus
Mercy Education World Wide: Prepper2
Fuel Economy of 2023 Cars and Trucks: Photo by myenergi on Unsplash
Heights of Women (NHANES): Olia Danilevich
Electricity Generation in the US: Photo by Ben, Out with the Old, In with the New CC BY-SA 2.0
IRIS Seismic Monitor Dataset: Image by Incorporated Research Institutions for Seismology (IRIS)
Residential Electricity Consumption in U.S. States: File:1995 Chunghsin I-70-S watthour meter.jpg - Wikimedia ...
Ridgecrest Earthquake Waves: Atomicdragon136
Digging Dinosaur Data!: ScottRobertAnselmo
Thick and Thin Books: Image by Karolina Grabowska from Pexels
Land Animals: katsrcool (CC BY 2.0)
Different Roller Coasters: Jonrev
HIV-AIDS: Annual Global & Regions: C. GoldsmithContent Providers: CDC/ C. Goldsmith, P. Feorino, E. L. Palmer, W. R. McManus / Public domain
Shopping Carts: Boudewijn Huysmans
Arsenic in Well-Water: Diverse Health Services Wordpress Newsletter (via Unsplash)
Spinning Storms: U.S. National Oceanic and Atmospheric Administration
Peppered Moths: Photo by Wolfgang Hasselmann on Unsplash
Nutritional Values of Food: Carissa Gan
Gene Expression: Public Domain
Genome, Genes, and Chromosomes: National Cancer Institute
Air Pollution & World Population (Simplified): Alexandrowicz, John L
Climate by the Month: mbruxelle via Adobe Stock
Daylight Hours In Four US Cities (Elementary): John Smith
Energy Use in California (Simplified): New Africa
Starlight, Star Bright: Robert
Streamflow and Sediment (Elementary): Creaturart
Daylight Hours Around the World (Simplified): Polarpx
Long-term Atmospheric Change: Vital
Jiminy Cricket Chirps: Vladimir Wrangel
Changing Ocean Chemistry: Rafael
Who's Using the Water?: Chaucharanje
Recycling Materials: Creative Commons
Cricket Chirps & Temperature: PetrP
Coral Reef Bleaching: borisoff
Tides Around the World: Commonwealth of Australia (Geoscience Australia) 2016
SST Around the World: Jaynes Gallery/Danita Delimont
Climate Action Tracks: Backwoodsdesign
Variants and Mutations of a Virus in the US: By Initial author: nextstrain.org — manually edited, En rouge - Own work using: file retrieved as Raw download at clades.svg, 2022-04-30, from https://github.com/nextstrain, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=117812694
US Federal Deficit by the Year: Nick Youngson CC BY-SA 3.0 Pix4free
Sunrise & Sunset Tables of the Past: Stacei Browne, "Slides provided courtesy of Pearson Education for Educational Purposes. Copyright, Pearson Education, 2009"
Climate Model Temperature Projections: Romolo Tavani
Sunrise & Sunset Tables of the Past (Simplified): Stacei Browne, "Slides provided courtesy of Pearson Education for Educational Purposes. Copyright, Pearson Education, 2009"
Global Carbon Budget: (Ted Eytan | CC BY-SA 2.0)
Food Calories: Plant and Animal: Alexander Raths
Global Prices of a Basket of Food: Kitreel
Orangutan Population Estimates: Creative Commons Attribution-Share Alike 4.0 International
Squirrel Census NYC: Wildlife NYC, City of New York
Peaks of Influenza-like Illnesses in US: Welcome Collection CC BY 4.0
Eclipses 2010-2030: Christin Lola
Sandhill Crane Migration Count since 1967: Frank Schulenburg, CC Attribution-Share Alike 4.0 Int.
NYT: Word of the Day: Claudio Divizia
Yearly Sunlight, Precipitation, & Temperature in California: Livansh
Eggs by the Dozen: Price Change: Beat Bieler
Demographics of US Cities & Their Police Officers: Dean Moses
LA Affordable Housing Projects 2003-2022: Wonderopolis, © National Center for Families Learning
Snowy Cities: AgnosticPreachersKid
Long Term Temperature & Precipitation: Stephen F. Adams. Courtesy of the New Bedford Whaling Museum
A Century of Weather Records: Photo by NOAA on Unsplash
Measuring Kids: Free for commercial use, DMCA
Taylor Swift's Reputation Tour (2018): Photo by Raphael Lovaski on Unsplash
100 Best YA Books of All Time: Photo by Matias North on Unsplash
Lunchtime Grocery List: clipart-library.com
Pet Adoption: Stanze B. from Pixabay
Beach Debris: The image is released free of copyrights under Creative Commons CC0.
Atlantic Hurricanes (Simplified): U.S. National Oceanic and Atmospheric Administration
Old Faithful Eruptions: Flicka
October Weather in US Cities (Simplified): Alfred Schrock
Mammal Life Cycles: Holger Detje from Pixabay
50 States of Recycling: Alabama to Missouri: jpgon via Adobe Stock
50 States of Recycling: Montana to Wyoming: jpgon via Adobe Stock
Urban Heat Islands in the US: Free for commercial use, DMCA
Green River, Sometimes Brown River: mypubliclands, CC BY 2.0 <https://creativecommons.org/licenses/by/2.0>, via Wikimedia Commons
Sandhill Crane Migration Count (Simplified): Frank Schulenburg, CC Attribution-Share Alike 4.0 Int.
Project: School Rules Survey (Responses): Image by Lockie from Pixabay
Great Salt Lake Since 1847: Photo by Urvish Oza on Unsplash
Tracking a Weather Balloon in Indiana: https://creativecommons.org/licenses/by/2.0/
Candy Choices: rochelle hartman
Aquatic Organisms in Acidic Environments: Connor Long
Project: Egg Drop Engineering Student Data: btylke
NFL American Football Conference: Photo by Sgt. Ray Casares, Public Domain
Mountaintops of North America: Public Domain
Active Mines in the US: Farragutful, CC BY-SA 4.0
Rock Resources in the US: https://creativecommons.org/licenses/by-nc/2.0/
Dog Growth Chart: Image by Pablo Villalon from Pixabay
Starlight: By Elop using Stellarium - Own work, based on a Screenshots with Stellarium, CC BY-SA 3.0
January Shadow Length: Image by StockSnap from Pixabay
Seasonal Shadow Length: mandritoui via Adobe Stock
Daylight Hours for Two Cities: Polarpx via Adobe Stock
Properties of Metals: Pituk via Adobe Stock
Plant Structure and Function: Image by kmarius from Pixabay
Global Climate Regions: dmutrojarmolinua via Adobe Stock
Mammal Reproduction: CC BY-SA 2.0 DEED, Ted Bobosh
How Americans Spend Their Free Time: Image by Monika Robak from Pixabay
Black American Firsts: National Archives
Gravity Force PhET Lab Sim: PhET Interactive Simulations
Black American Congresspeople: Currier and Ives
Baseball Physics (Simplified): Caitlin conner
Net Primary Productivity in Different Biomes: US Forest Service, Curlew National Grassland
Pay Gap Between Men & Women in the US: Open Clipart
Primary Energy Production in the US: Crux Fundgrube CC A 2.5
Water Use by Country - Top 70: Photo by Ethan Adhikary Utpal
Fossils of the World - Cambrian to Present: tamifreed via Adobe Stock
Household Electricity Use in the US: Pamela Au vis Adobe Stock
Feathers and Beaks: Pixabay- CTolman
NCAA D1 Basketball Career Scoring Leaders: compiled by ABrickley
NCAA D1 Women's Basketball Career Scoring Leaders: By John Mac - https://www.flickr.com/photos/johnmac612/52757080997/, CC BY-SA 2.0, https://commons.wikimedia.org/w/index.php?curid=130261353
Cicada Brood Emergence: Gerry/ Adobe Stock Images
New York City & Long Island EV Charging Stations: stux via Pixabay
5th Grade School Supply List: Image by Vinicius Imbroisi from Pixabay
Fractions with Thick and Thin Books: Image by Karolina Grabowska from Pexels
Lunchtime Grocery Prices: clipart-library.com
Historical Rainfall in Karpathos, Greece: Used with permission.
Ios Port Arrivals and Departures 2010-2023: Port of Ios by Gerald Smith
Santorini Island Arrivals 2012-23: Used with permission by Gerald Smith
Santorini Island Hotel Stays: Used with permission by Kelly Wheatcroft
Imperial Bromeliad Germination: "Alcantarea imperialis, Jardin Botanique de Montréal" by Montréalais from Wikimedia, CC BY 3.0
Why People Don't Vote: Image by Gerald Atlman, Pixabay
Social Media Use in 2021: pixabay
Magnetic Force: Walls.io/Pexels
Seed Dispersal: Skyler Ewing/ Pexels
Flooring Materials: Leaf, Tiles, Floor by Mac231 from Pixabay
Three Thousand Utah Households: Photo by Samuel Sweet/ Pexels