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    Students examining liquid in test tube, conducting scientific experiment in laboratory classroom — Stock Photo
    Students examining liquid in test tube, conducting scientific experiment in laboratory classroom
    Eager girl students raising arms behind microscopes in laboratory classroom — Stock Photo
    Eager girl students raising arms behind microscopes in laboratory classroom
    Focused boy student assembling computer in classroom — Stock Photo
    Focused boy student assembling computer in classroom
    High school students taking exam at desks in classroom — Stock Photo
    High school students taking exam at desks in classroom
    Curious girl student examining molecular structure — Stock Photo
    Curious girl student examining molecular structure
    Portrait confident young man outside sunny building — Stock Photo
    Portrait confident young man outside sunny building
    High angle close-up of artist drawing hand in art class. — Stock Photo
    High angle close-up of artist drawing hand in art class.
    Focused high school girl student taking exam — Stock Photo
    Focused high school girl student taking exam
    Portrait smiling, confident junior high school girl in classroom — Stock Photo
    Portrait smiling, confident junior high school girl in classroom
    Teenage boys in high school art class — Stock Photo
    Teenage boys in high school art class
    Preteen girl lying on blanket on green meadow in garden and reading book. — Stock Photo
    Preteen girl lying on blanket on green meadow in garden and reading book.
    Junior high school student raising hand, asking a question during lesson in classroom — Stock Photo
    Junior high school student raising hand, asking a question during lesson in classroom
    Young woman writing in book — Stock Photo
    Young woman writing in book
    Rear view of teenage student girl walking in city during autumn — Stock Photo
    Rear view of teenage student girl walking in city during autumn
    Portrait close up of a Caucasian male field hockey player, wearing a white team strip, standing on a hockey pitch looking to camera on a sunny day — Stock Photo
    Portrait close up of a Caucasian male field hockey player, wearing a white team strip, standing on a hockey pitch looking to camera on a sunny day
    Portrait of smiling, confident junior high student using computer in computer lab — Stock Photo
    Portrait of smiling, confident junior high student using computer in computer lab
    High school students talking on stair landing — Stock Photo
    High school students talking on stair landing
    Portrait of a Caucasian female field hockey players, training before a game, standing on a hockey pitch, looking at camera, with her teammates standing in a row behind her on a sunny day — Stock Photo
    Portrait of a Caucasian female field hockey players, training before a game, standing on a hockey pitch, looking at camera, with her teammates standing in a row behind her on a sunny day
    Schoolboy using digital tablet — Stock Photo
    Schoolboy using digital tablet
    Young female college student studying in cafe — Stock Photo
    Young female college student studying in cafe
    Happy high school students and teacher clapping in debate class — Stock Photo
    Happy high school students and teacher clapping in debate class
    Confident young male basketball player shooting the ball and gesturing, celebrating — Stock Photo
    Confident young male basketball player shooting the ball and gesturing, celebrating
    College students taking test at desks in classroom — Stock Photo
    College students taking test at desks in classroom
    University students studying in library — Stock Photo
    University students studying in library
    Focused junior high school student doing homework in classroom — Stock Photo
    Focused junior high school student doing homework in classroom
    Serious, sweating basketball player holding basketball overhead — Stock Photo
    Serious, sweating basketball player holding basketball overhead
    Side view of a Caucasian female and male high school student couple hanging out, standing in their school playing field, the boy piggybacking the girl, with classmates hanging out and talking in the background — Stock Photo
    Side view of a Caucasian female and male high school student couple hanging out, standing in their school playing field, the boy piggybacking the girl, with classmates hanging out and talking in the background
    Teacher talking to high school students sitting in common room — Stock Photo
    Teacher talking to high school students sitting in common room
    High school girl student taking exam at desk in classroom — Stock Photo
    High school girl student taking exam at desk in classroom
    Tables in empty classroom — Stock Photo
    Tables in empty classroom
    Young male basketball player dribbling the ball, playing game in gymnasium — Stock Photo
    Young male basketball player dribbling the ball, playing game in gymnasium
    Teenagers with video camera and microphone vlogging — Stock Photo
    Teenagers with video camera and microphone vlogging
    Front view of a multi-ethnic group of teenage school pupils standing together in a classroom and smiling to camera at break time — Stock Photo
    Front view of a multi-ethnic group of teenage school pupils standing together in a classroom and smiling to camera at break time
    Teen Boy Leaps from High Cliff Into Dark Pool of Water — Stock Photo
    Teen Boy Leaps from High Cliff Into Dark Pool of Water
    Boy student using microscope, conducting scientific experiment in laboratory classroom — Stock Photo
    Boy student using microscope, conducting scientific experiment in laboratory classroom
    Mixed race girl walking on a cactus trail with her long hair flying. — Stock Photo
    Mixed race girl walking on a cactus trail with her long hair flying.
    Teacher explaining to junior high students — Stock Photo
    Teacher explaining to junior high students
    Portrait smiling, enthusiastic junior high school girl student with braces in classroom — Stock Photo
    Portrait smiling, enthusiastic junior high school girl student with braces in classroom
    Teacher talking with students in classroom — Stock Photo
    Teacher talking with students in classroom
    Front view of a teenage Caucasian boy and a teenage African American girl in a high school classroom sitting a desk, using a tablet computer, with teenage classmates sitting at desks working in the background — Stock Photo
    Front view of a teenage Caucasian boy and a teenage African American girl in a high school classroom sitting a desk, using a tablet computer, with teenage classmates sitting at desks working in the background
    Portrait smiling high school girl in stairway — Stock Photo
    Portrait smiling high school girl in stairway
    Focused high school girl student taking exam at desk in classroom — Stock Photo
    Focused high school girl student taking exam at desk in classroom
    Happy young college students using computer together in library — Stock Photo
    Happy young college students using computer together in library
    Focused young male college student studying in cafe — Stock Photo
    Focused young male college student studying in cafe
    Side view of a Caucasian teenage girl sitting on the edge of the stage holding a script in an empty school theatre during rehearsals for a performance — Stock Photo
    Side view of a Caucasian teenage girl sitting on the edge of the stage holding a script in an empty school theatre during rehearsals for a performance
    Portrait smiling, confident young male basketball player team celebrating, gesturing thumbs-up — Stock Photo
    Portrait smiling, confident young male basketball player team celebrating, gesturing thumbs-up
    High school girl students studying in classroom — Stock Photo
    High school girl students studying in classroom
    High school boy student taking notes, writing in notebook in classroom — Stock Photo
    High school boy student taking notes, writing in notebook in classroom
    Side view close up of a teenage Caucasian boy in a school classroom sitting at desk, concentrating, looking out of the window, leaning his head on his hand — Stock Photo
    Side view close up of a teenage Caucasian boy in a school classroom sitting at desk, concentrating, looking out of the window, leaning his head on his hand
    Portrait confident young female college student in computer lab — Stock Photo
    Portrait confident young female college student in computer lab
    Side view low section of female field hockey player, during a field hockey game, shooting a ball, holding a hockey stick, with her teammates and opponents in the background, on a sunny day — Stock Photo
    Side view low section of female field hockey player, during a field hockey game, shooting a ball, holding a hockey stick, with her teammates and opponents in the background, on a sunny day
    Junior high school students in classroom — Stock Photo
    Junior high school students in classroom
    Front view of a teenage African American female high school student reading to a multi-ethnic class of teenagers in a school classroom sitting at desks listening and concentrating, their male Caucasian teacher standing and listening in the background — Stock Photo
    Front view of a teenage African American female high school student reading to a multi-ethnic class of teenagers in a school classroom sitting at desks listening and concentrating, their male Caucasian teacher standing and listening in the background
    Pensive relaxed kid hanging on rope climbing net on playground in bright light — Stock Photo
    Pensive relaxed kid hanging on rope climbing net on playground in bright light
    Side view of a Caucasian teenage male high school student and a Caucasian male teacher standing on the stage in an empty school theatre preparing before a performance, holding scripts and practicing together, backlit by spotlights — Stock Photo
    Side view of a Caucasian teenage male high school student and a Caucasian male teacher standing on the stage in an empty school theatre preparing before a performance, holding scripts and practicing together, backlit by spotlights
    Three Siblings Walk On the Beach At Low Tide During Sunset — Stock Photo
    Three Siblings Walk On the Beach At Low Tide During Sunset
    Front view close up of a Caucasian teenage boy musician with brown shirt sitting in front of a window playing a French horn alone at school — Stock Photo
    Front view close up of a Caucasian teenage boy musician with brown shirt sitting in front of a window playing a French horn alone at school
    Side view close up of a Caucasian female field hockey player, preparing before a game, standing in a changing room, with her teammates standing in a row behind her — Stock Photo
    Side view close up of a Caucasian female field hockey player, preparing before a game, standing in a changing room, with her teammates standing in a row behind her
    Boys Cover their Noses to avoid the Sulphur Smell at Great Salt Lake. — Stock Photo
    Boys Cover their Noses to avoid the Sulphur Smell at Great Salt Lake.
    Young woman looking away — Stock Photo
    Young woman looking away