1433 results for: 13-15 years

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Multi ethnic students listening to their teacher during a lesson in a classroom at the university

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Multi ethnic students listening to their teacher d...

Side view of two male and female african students chatting relaxed in the campus sitting on a bench

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Side view of two male and female african students ...

Young student handing her exam to the professor in a university classroom, surrounded by the

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Young student handing her exam to the professor in...

Distracted african woman looking up while using laptop sitting outside the university campus

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Distracted african woman looking up while using la...

Young woman using laptop in university classroom, participating in an engaging lesson with her

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Young woman using laptop in university classroom, ...

A man jogging on hilly trails in a serene natural park

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A man jogging on hilly trails in a serene natural ...

Displeased person holding her nose isolated. Disgust young girl covering nose. Woman covering nose

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Displeased person holding her nose isolated. Disgu...

Distracted african young man enjoying nature hiking in the forest

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Distracted african young man enjoying nature hikin...

Two happy university students are studying together in a classroom, taking notes and using a

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Two happy university students are studying togethe...

Rubble of the Dresden Frauenkirche by George Bähr, burnt out after the bombing raid of 13 February

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Rubble of the Dresden Frauenkirche by George Bähr,...

Rubble of the Dresden Frauenkirche by George Bähr, burnt out after the bombing raid of 13 February

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Rubble of the Dresden Frauenkirche by George Bähr,...

Low angle view photo of male and female african american university friends using phones walking

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Low angle view photo of male and female african am...

Teenage girl portrait .Expression of happiness, winning attitude and sticking out tongue

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Teenage girl portrait .Expression of happiness, wi...

African american students studying with laptop together sitting in the grass outside the campus

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African american students studying with laptop tog...

Teenage girl listening to music outdoors with headphones

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Teenage girl listening to music outdoors with head...

Teenage girl sitting in a park with a worried expression and a lost look while holding headphones

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Teenage girl sitting in a park with a worried expr...

Tennage girl dancing on the street. Copy space

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Tennage girl dancing on the street. Copy space

African female student with braided long hair using laptop outside the campus in a sunny day

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African female student with braided long hair usin...

Fit male engaging in a push-up workout at an outdoor gym.

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Fit male engaging in a push-up workout at an outdo...

Focused female african university student using laptop sitting on outdoors staircases in the campus

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Focused female african university student using la...

Latin teenager in a the street saying no with her hand. Stop concept. Rejection concept.

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Latin teenager in a the street saying no with her ...

Tennage girl dancing on the street. Copy space

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Tennage girl dancing on the street. Copy space

Teenage girl sitting in the park looking happy in wonder at her phone screen

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Teenage girl sitting in the park looking happy in ...

Thirteen-year-old boy with earphones, headphones, Cologne, North Rhine-Westphalia, Germany, Europe

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Thirteen-year-old boy with earphones, headphones, ...

Thirteen-year-old boy, swimming pool

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Thirteen-year-old boy, swimming pool

Snowboarder, 15 years old, Tegelberg, near Füssen, Allgäu Alps, Allgäu, Bavaria, Germany, Europe

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Snowboarder, 15 years old, Tegelberg, near Füssen,...

Snowshoe hiker, Allgäu Alps, Allgäu, Bavaria, Germany, Europe

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Snowshoe hiker, Allgäu Alps, Allgäu, Bavaria, Germ...

Multi ethnic university students walking together on brick stairs, engaging in study sessions and

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Multi ethnic university students walking together ...

Young chemistry students wearing lab coats performing experiment using test tubes and other

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Young chemistry students wearing lab coats perform...

Focused student pinning a paper on a bulletin board in a university hallway, with another student

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Focused student pinning a paper on a bulletin boar...

Multi ethnic university students wearing lab coats conducting a chemistry experiment using colorful

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Multi ethnic university students wearing lab coats...

Two female students carrying backpacks and laptops are walking down a school hallway, engaged in

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Two female students carrying backpacks and laptops...

Diverse group of high school students walking together down a bustling school hallway, carrying

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Diverse group of high school students walking toge...

Multi ethnic group of high school students attending a lesson, a girl is raising her hand to ask a

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Multi ethnic group of high school students attendi...

Cheerful university students are actively participating in a class, engaging in discussions and

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Cheerful university students are actively particip...

Happy teacher assisting college students learning and preparing exam in university classroom

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Happy teacher assisting college students learning ...

University students in lab coats conducting a chemistry experiment, using lab equipment and

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University students in lab coats conducting a chem...

Teenage student giving a presentation in a modern classroom with a teacher and diverse group of

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Teenage student giving a presentation in a modern ...

Diverse group of university chemistry students conducting an experiment in a laboratory,

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Diverse group of university chemistry students con...

Young male scientist pouring blue liquid into laboratory glassware while smiling during an

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Young male scientist pouring blue liquid into labo...

University teacher using tablet explaining lesson to two students sitting at desk in classroom

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University teacher using tablet explaining lesson ...

Professor explaining lesson to diverse university students sitting at desk, helping them with their

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Professor explaining lesson to diverse university ...

Female professor engaging students in a lesson within a university classroom, fostering an

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Female professor engaging students in a lesson wit...

Cheerful professor is teaching a lesson to a diverse group of university students in a modern

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Cheerful professor is teaching a lesson to a diver...

Group of diverse high school or university students walking down school hallway between classes

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Group of diverse high school or university student...

Chemistry teacher showing test tube with chemical reaction to students during experiment in

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Chemistry teacher showing test tube with chemical ...

Multi ethnic university students clapping in classroom after a presentation of a shy student, with

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Multi ethnic university students clapping in class...

University professor pointing at a student raising hand to answer a question during a lesson in

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University professor pointing at a student raising...

Diverse group of high school students walking together down a bustling school hallway after class,

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Diverse group of high school students walking toge...

Two female students chatting during break time in university corridor, holding laptop and backpack

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Two female students chatting during break time in ...

Happy multiethnic students running through a university hallway, celebrating friendship and

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Happy multiethnic students running through a unive...

Smiling chemistry teacher showing colorful test tubes and beakers while explaining chemical

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Smiling chemistry teacher showing colorful test tu...

Multi ethnic university students attending class and following lesson in classroom, teacher

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Multi ethnic university students attending class a...

Happy diverse college students chatting and laughing together in university hallway, enjoying their

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Happy diverse college students chatting and laughi...

Female college student pinning an important notice on a bulletin board in a busy campus hallway,

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Female college student pinning an important notice...

Multi ethnic group of university students attending a chemistry lesson in a laboratory, teacher

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Multi ethnic group of university students attendin...

Cheerful female students are walking out of the classroom after their lesson at the university

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Cheerful female students are walking out of the cl...

Cheerful diverse university students running joyfully through the school hallway after class,

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Cheerful diverse university students running joyfu...

Sporty young man with wakeboard, jump over obstacle, jump, water sports, water skiing and wake

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Sporty young man with wakeboard, jump over obstacl...

Young man jumping into the water with a wakeboard, Water ski and wake park, Water sports, Stráž pod

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Young man jumping into the water with a wakeboard,...

Young man jumping and flying with wakeboard, water sports and water skiing in the wakepark

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Young man jumping and flying with wakeboard, water...

Young man jumping with wakeboard into the lake, water sports, water skiing in wakepark, Stráž pod

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Young man jumping with wakeboard into the lake, wa...

Thirteen-year-old boy with earphones, headphones, Cologne, North Rhine-Westphalia, Germany, Europe

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Thirteen-year-old boy with earphones, headphones, ...

Larches glowing, autumn in the Talai forest, St. Valentin auf der Haide, Vinschgau, South Tyrol,

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Larches glowing, autumn in the Talai forest, St. V...

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Handsome stylish man in brown trenchcoat and pink ...

Young man jumping with wakeboard into the lake, water sports, water skiing in wakepark, Stráž pod

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Young man jumping with wakeboard into the lake, wa...

Young man jumping with wakeboard over the lake, water sports, water skiing in wakepark, Stráž pod

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Young man jumping with wakeboard over the lake, wa...

Boy with wakeboard and helmet in front of the jump and jump start

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Boy with wakeboard and helmet in front of the jump...

Cheerful and friendly girl face looking and smiling at the camera. Portrait of friendly latin girl

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Cheerful and friendly girl face looking and smilin...

Rubble of the Dresden Frauenkirche by George Bähr, burnt out after the bombing raid of 13 February

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Rubble of the Dresden Frauenkirche by George Bähr,...

Young man jumping with wakeboard over jump into the lake, water sports, water skiing in wakepark,

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Young man jumping with wakeboard over jump into th...

Young man jumping with wakeboard over jump and obstacle, water sports, water skiing in wakepark,

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Young man jumping with wakeboard over jump and obs...

Thirteen-year-old boy with skateboard in front of graffiti, Cologne, Germany, Europe

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Thirteen-year-old boy with skateboard in front of ...

Young man on wakeboard falls in the water, Water ski and wake park, Water sports

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Young man on wakeboard falls in the water, Water s...

Water sports with wakeboard, two men riding side by side in the lake, camera in hand, water skiing

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Water sports with wakeboard, two men riding side b...

Sporty young man with helmet and waistcoat on wakeboard in lake, water sports, water skiing in

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Sporty young man with helmet and waistcoat on wake...

Young man jumping and flying with wakeboard, water sports and water skiing in the wakepark

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Young man jumping and flying with wakeboard, water...

Portrait of a young athletic man with curly brown hair in front of a grey wall, looking into the

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Portrait of a young athletic man with curly brown ...

Söllereck toboggan at the valley station of the Söllereck cable car, Oberstdorf, Allgäu, Bavaria,

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Söllereck toboggan at the valley station of the Sö...

A boy doing a one-handed handstand on a grassy field with the sun shining brightly in the clear

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A boy doing a one-handed handstand on a grassy fie...

Figure of eight knot tied with a climbing rope, Belove Stene climbing area, island of Krk, Croatia,

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Figure of eight knot tied with a climbing rope, Be...

Children go wakeboarding together on the lake, water sports, water skiing and wake park

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Children go wakeboarding together on the lake, wat...

Hikers marvel at the melting Kjenndalsbreen glacier and a mountain lake surrounded by steep rock

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Hikers marvel at the melting Kjenndalsbreen glacie...

Sporty young man with wakeboard, jump over obstacle, jump, water sports, water skiing and wake

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Sporty young man with wakeboard, jump over obstacl...

Young man with wakeboard at the jump start, water sports in the wakepark

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Young man with wakeboard at the jump start, water ...

Young man jumping and flying with wakeboard, water sports and water skiing in the wakepark

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Young man jumping and flying with wakeboard, water...

Young man jumping with wakeboard over jump into the lake, water sports, water skiing in wakepark,

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Young man jumping with wakeboard over jump into th...

Snowshoe hiker, Allgäu Alps, Allgäu, Bavaria, Germany, Europe

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Snowshoe hiker, Allgäu Alps, Allgäu, Bavaria, Germ...

Rubble of the Dresden Frauenkirche by George Bähr, burnt out after the bombing raid of 13 February

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Rubble of the Dresden Frauenkirche by George Bähr,...

Young man riding wakeboard in lake, Leisure and water sports, Germany, Europe

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Young man riding wakeboard in lake, Leisure and wa...

Rubble of the Dresden Frauenkirche by George Bähr, burnt out after the bombing raid of 13 February

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Rubble of the Dresden Frauenkirche by George Bähr,...

Young man with wakeboard in lake, water sports, water skiing in wakepark

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Young man with wakeboard in lake, water sports, wa...

Young man with helmet and wakeboard, tying shoes in front of jump start, water sports

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Young man with helmet and wakeboard, tying shoes i...

Young man jumping and flying with wakeboard, water sports and water skiing in the wakepark

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Young man jumping and flying with wakeboard, water...

Young man with wakeboard in lake, water sports, water skiing in wakepark

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Young man with wakeboard in lake, water sports, wa...

Young man on wakeboard in splashing water, water skiing and wakepark, water sports, Stráž pod

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Young man on wakeboard in splashing water, water s...

Young man on wakeboard in splashing water, cheerful, water skiing and wakepark, water sports

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Young man on wakeboard in splashing water, cheerfu...

Young man jumping with wakeboard, water sports, water skiing in wakepark

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Young man jumping with wakeboard, water sports, wa...

Young man with wakeboard, jump in lake, water sports, water skiing in wakepark

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Young man with wakeboard, jump in lake, water spor...

Young man jumping and flying with wakeboard, water sports and water skiing in the wakepark

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Young man jumping and flying with wakeboard, water...

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