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    Curious, focused boy examining computer chip in classroom — Stock Photo
    Curious, focused boy examining computer chip in classroom
    Male teacher and girl students conducting scientific experiment at microscope in laboratory classroom — Stock Photo
    Male teacher and girl students conducting scientific experiment at microscope in laboratory classroom
    Young child girl feeding farm animals pony and alpaca — Stock Photo
    Young child girl feeding farm animals pony and alpaca
    High school girl students with hands raised during lesson in classroom — Stock Photo
    High school girl students with hands raised during lesson in classroom
    Portrait happy, confident junior high girl students — Stock Photo
    Portrait happy, confident junior high girl students
    Interior of a library with rows of bookshelves, a seat and books and a laptop computer on a floor — Stock Photo
    Interior of a library with rows of bookshelves, a seat and books and a laptop computer on a floor
    A school of Moorish Idols; (Zanclus cornutus); Makena, Maui, Hawaii, United States of America — Stock Photo
    A school of Moorish Idols; (Zanclus cornutus); Makena, Maui, Hawaii, United States of America
    Side view close up of a young African schoolboy sitting at his desk and turning around, looking to camera and smiling during a lesson in a township elementary school classroom. — Stock Photo
    Side view close up of a young African schoolboy sitting at his desk and turning around, looking to camera and smiling during a lesson in a township elementary school classroom.
    Close-up of climbing wall in elementary school gym — Stock Photo
    Close-up of climbing wall in elementary school gym
    Young male basketball players playing basketball on court in gymnasium — Stock Photo
    Young male basketball players playing basketball on court in gymnasium
    Fish swimming over healthy coral reef — Stock Photo
    Fish swimming over healthy coral reef
    Portrait confident girl student using computer in library — Stock Photo
    Portrait confident girl student using computer in library
    Bearded man practicing archery in school — Stock Photo
    Bearded man practicing archery in school
    Portrait confident girl student researching at computer in library — Stock Photo
    Portrait confident girl student researching at computer in library
    Junior high girl students walking in library — Stock Photo
    Junior high girl students walking in library
    Front view of a group of female Caucasian field hockey players, training before a game, working out on a field hockey pitch, doing push ups, with their coach in the foreground, on a sunny day — Stock Photo
    Front view of a group of female Caucasian field hockey players, training before a game, working out on a field hockey pitch, doing push ups, with their coach in the foreground, on a sunny day
    Myanmar (Burma), Yangon region, Yangon, Shwedagon Pagoda, novice ordination for boys who enter temporarily into a monastery — Stock Photo
    Myanmar (Burma), Yangon region, Yangon, Shwedagon Pagoda, novice ordination for boys who enter temporarily into a monastery
    Three Siblings Jump Off Of A Large Rock At The Beach — Stock Photo
    Three Siblings Jump Off Of A Large Rock At The Beach
    Portrait confident young male basketball player dribbling the ball on court in gymnasium — Stock Photo
    Portrait confident young male basketball player dribbling the ball on court in gymnasium
    Schoolboy playing with friends at playground — Stock Photo
    Schoolboy playing with friends at playground
    Girl writing in book — Stock Photo
    Girl writing in book
    A man in a field with a backpack and a tent — Stock Photo
    A man in a field with a backpack and a tent
    Young people looking at screen. — Stock Photo
    Young people looking at screen.
    Two Children trick or treating on Halloween — Stock Photo
    Two Children trick or treating on Halloween
    Side view of a mixed race male soccer coach standing with his foot on a football, pointing and instructing a multi-ethnic group of boy soccer players on a soccer pitch in the sun during a soccer training session — Stock Photo
    Side view of a mixed race male soccer coach standing with his foot on a football, pointing and instructing a multi-ethnic group of boy soccer players on a soccer pitch in the sun during a soccer training session
    Close up of wooden cube with question mark — Stock Photo
    Close up of wooden cube with question mark
    Full length of cute elementary boy walking amidst hens in pen at organic poultry farm. childhood, homesteading and poultry farming. — Stock Photo
    Full length of cute elementary boy walking amidst hens in pen at organic poultry farm. childhood, homesteading and poultry farming.
    Curious kids playing with large dominos in science center — Stock Photo
    Curious kids playing with large dominos in science center
    Curious girl playing in science center — Stock Photo
    Curious girl playing in science center
    Toasted sesame seeds with salt in a mortar (top view) — Stock Photo
    Toasted sesame seeds with salt in a mortar (top view)
    University student using microscope — Stock Photo
    University student using microscope
    Junior high girl students entering library — Stock Photo
    Junior high girl students entering library
    Kids playing at interactive exhibit in science center — Stock Photo
    Kids playing at interactive exhibit in science center
    Two friends smiling in city — Stock Photo
    Two friends smiling in city
    Father cleaning son with napkin while drawing with kids in living room at home. — Stock Photo
    Father cleaning son with napkin while drawing with kids in living room at home.
    Student drawing on chalkboard in classroom — Stock Photo
    Student drawing on chalkboard in classroom
    Teachers talking at library — Stock Photo
    Teachers talking at library
    School of small fish swimming under pure ocean water with coral reefs on bottom — Stock Photo
    School of small fish swimming under pure ocean water with coral reefs on bottom
    Portrait smiling female college student studying — Stock Photo
    Portrait smiling female college student studying
    Happy child playing in water at a park — Stock Photo
    Happy child playing in water at a park
    Scientist female with sample and tool in a lab — Stock Photo
    Scientist female with sample and tool in a lab
    Teacher and students touching large globe in science center — Stock Photo
    Teacher and students touching large globe in science center
    Teenagers and teacher talking in community center — Stock Photo
    Teenagers and teacher talking in community center
    Girl sitting at table and browsing the cellphone while doing homework assignment at home — Stock Photo
    Girl sitting at table and browsing the cellphone while doing homework assignment at home
    College students studying together at computers in library — Stock Photo
    College students studying together at computers in library
    Schoolboy using mobile phone near chalkboard in classroom — Stock Photo
    Schoolboy using mobile phone near chalkboard in classroom
    High school students talking during debate class in classroom — Stock Photo
    High school students talking during debate class in classroom
    Over the shoulder view of a mixed race male soccer coach kneeling and instructing a multi-ethnic group of boy soccer players sitting on a playing field in the sun during a soccer training session — Stock Photo
    Over the shoulder view of a mixed race male soccer coach kneeling and instructing a multi-ethnic group of boy soccer players sitting on a playing field in the sun during a soccer training session
    Smiling, enthusiastic teenage girls drinking water and cheering in dance class in studio — Stock Photo
    Smiling, enthusiastic teenage girls drinking water and cheering in dance class in studio
    Rear View of Teen Boy Playing Gaming Computer on a Messy Desk — Stock Photo
    Rear View of Teen Boy Playing Gaming Computer on a Messy Desk
    Europe, Grece, Plain of Thessaly, Valley of Penee, World Heritage of UNESCO since 1988, Orthodox Christian monasteries of Meteora perched atop impressive gray rock masses sculpted by erosion — Stock Photo
    Europe, Grece, Plain of Thessaly, Valley of Penee, World Heritage of UNESCO since 1988, Orthodox Christian monasteries of Meteora perched atop impressive gray rock masses sculpted by erosion
    Smiling female science teacher leading lesson at whiteboard in classroom — Stock Photo
    Smiling female science teacher leading lesson at whiteboard in classroom
    Composition of wooden tables in empty room near big windows — Stock Photo
    Composition of wooden tables in empty room near big windows
    Portrait of a mixed race male soccer coach standing on a playing field in the sun with arms crossed looking to camera during a soccer training session, with a multi-ethnic group of boy soccer players in the background, backlit — Stock Photo
    Portrait of a mixed race male soccer coach standing on a playing field in the sun with arms crossed looking to camera during a soccer training session, with a multi-ethnic group of boy soccer players in the background, backlit
    Portrait of a smiling girl in a summer dress — Stock Photo
    Portrait of a smiling girl in a summer dress
    Young beautiful woman with laptop — Stock Photo
    Young beautiful woman with laptop
    Schoolboys playing at schoolyard — Stock Photo
    Schoolboys playing at schoolyard
    Full length teen girl walking in paddock and carrying horse blanket while taking care of animals after training in equestrian school — Stock Photo
    Full length teen girl walking in paddock and carrying horse blanket while taking care of animals after training in equestrian school
    Close-up of girl writing on blackboard in classroom — Stock Photo
    Close-up of girl writing on blackboard in classroom
    Young woman reading book by locker — Stock Photo
    Young woman reading book by locker