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A young male teacher with curly black hair and glasses wears a white lab coat while holding a bubbling green flask in a brightly lit science classroom with students wearing safety goggles.

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A chemistry teacher with wavy dark hair and a goatee, wearing a white lab coat and safety glasses, demonstrates a dry ice experiment to students in a school laboratory.

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A man with salt-and-pepper hair and a beard gestures toward a blank whiteboard in a chemistry laboratory filled with glassware and lab benches under bright fluorescent lighting.

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A man with a shaved head, dark skin, a full beard, and round glasses wears a white lab coat and stands with his hands in his pockets in front of a large chalkboard in a chemistry classroom.

A young boy with a buzz cut works at his desk in a bright, sunlit German primary school classroom while his classmates study and a teacher writes on the chalkboard in the background.

A female scientist in a white lab coat and safety goggles works at a laboratory bench, holding a test tube and writing in a notebook.

A smiling East Asian female teacher with shoulder-length black curly hair stands in a classroom holding a wooden pointer, with students sitting at desks in the background in front of a green chalkboard.

A dimly lit laboratory scene featuring a glowing fume hood and various glass beakers and flasks on a dark workbench.

A woman with a shaved head and dark skin, wearing a white lab coat and safety goggles, examines a petri dish in a high-tech laboratory with glowing blue equipment.

A young woman with long braids and a plum lip performs sign language in a bright primary school hall while children sit on benches behind her.

A young girl with braided hair works on a small wheeled robot in a bright classroom, while three other children build robots at the same table.

A young boy with short black hair stands in the foreground of a bright Tokyo primary school classroom, signing with his hands to a group of classmates sitting at their desks.

A young man with a red buzz cut and safety goggles on his forehead smiles while wearing a lab coat in a laboratory setting with blurred glassware in the background.

A group of students work on tablets at a white table in a bright, modern classroom with pale wood walls and a large screen displaying a glowing blue globe.

A young woman with red hair and freckles wearing a white lab coat and blue nitrile gloves works with a beaker behind a glass shield in a laboratory setting.

A bearded man in a dark cardigan stands in a sunlit classroom, holding a piece of chalk while facing a large, mostly blank chalkboard.

A young woman with chestnut hair and tan skin, wearing a white lab coat and safety goggles, pours a steaming liquid from a beaker into a flask in a brightly lit chemistry laboratory.

A laughing teacher with a short beard stands in a classroom pointing at a chalk drawing of a camel on a green board while his students laugh at their desks in bright morning light.

A female teacher with a ponytail stands at a chalkboard in a classroom, drawing a circle around a triangle while students sit at desks facing her, illuminated by natural light from windows on the right.

A smiling man with a white beard and glasses, wearing a white lab coat and safety goggles pushed up on his forehead, holds a flask containing green liquid in a laboratory setting with soft window lighting.

A smiling teacher with a wooden pointer stands in the center of a classroom filled with students sitting at wooden desks, illuminated by bright window light.

A woman with long red hair wearing a white lab coat works at a laboratory bench with glassware and Bunsen burners in a brightly lit science center.

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A man wearing safety glasses and a white lab coat observes a bubbling purple liquid in a flask inside a laboratory fume hood.

A teacher with dark hair in a bun stands in a bright, modern classroom with a green plant wall, overseeing students sitting at hexagonal desks using tablets.

A young man with curly hair stands in a bright, modern seminar room, looking at a large whiteboard covered in diagrams while illuminated by natural light from high windows.

A flat illustration of a young woman with short curly hair and deep brown skin wearing a white lab coat, standing in a laboratory filled with glass flasks and a microscope under cool blue lighting.

A South Asian woman with long black hair and safety glasses works in a laboratory, using a pipette to transfer liquid into a multi-well plate under blue light.

A woman with curly auburn hair wearing a white lab coat and blue gloves examines a petri dish containing a small piece of tissue in a laboratory setting with cool-toned lighting.

A group of elementary school students work on tablets at colorful, curved desks in a bright, modern classroom with large windows.

A flat illustration of a young woman with copper-red hair, freckles, and safety goggles wearing a lab coat and holding a beaker in a laboratory setting with scientific equipment.

A smiling woman with a black bob and a navy blazer stands at a wooden lectern in a university lecture hall, addressing a room of students with natural light streaming from high windows.

A group of children sit in a row in a sunlit classroom, playing recorders while facing away from the camera.

A man with dark skin, a beard, and cornrows sketches a large chalk apple on a blackboard inside a rustic stone classroom with tall windows overlooking apple trees.

An older man with grey hair and a beard, wearing a tweed jacket, stands in a sunlit classroom next to a chalkboard.

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A smiling man with Latin American features, wearing a white lab coat and safety goggles, holds a conical flask containing amber liquid in a bright, modern laboratory.

A Southeast Asian woman with a dark brown bob and round glasses, wearing a white lab coat and safety goggles, smiles while holding up a round flask containing blue liquid in a brightly lit laboratory.

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An empty science classroom features dark wooden tables with stools placed upside down on top of them, illuminated by natural light streaming through large windows.

A collection of laboratory glassware, including round-bottomed flasks and a condenser column, sits on a black worktop backlit by a low window, casting bright caustics and light reflections.

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An empty school science laboratory is illuminated by bright daylight streaming through tall windows on the left, featuring long black-topped lab benches equipped with sinks, microscopes, and glassware.

A young woman with dark skin and long braids, wearing a white lab coat and safety goggles, stands in a laboratory next to a fume hood containing glowing blue glassware.

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A teacher with a short haircut and a hoop earring walks between wooden desks in a sunlit classroom in Kumasi, while students sit at their desks in the foreground.

A young East Asian boy with a hearing aid sits at a desk in a sunlit classroom, looking forward while other students are blurred in the background.

A young girl with braided brown hair and safety goggles conducts a science experiment with a bubbling flask in a classroom, while a classmate sits at a nearby desk, rendered in a two-tone pink and teal risograph style.

A glowing blue chemical reaction occurs inside a round-bottom flask suspended by a clamp stand in a dimly lit laboratory.

A flat vector illustration of a young man with curly brown hair, an undercut, and freckles, wearing a lab coat and holding a round glass flask in a laboratory setting, rendered in a limited emerald green and white color palette.

A Southeast Asian woman with long dark hair, wearing a white lab coat and safety goggles, smiles while holding a test tube containing glowing green liquid in a brightly lit laboratory.

A middle-aged man with a buzz cut and safety glasses performs a flame test experiment in a school laboratory, holding a copper wire in a Bunsen burner flame that glows bright green.

A man with deep brown skin and a close-cropped fade, wearing a white lab coat and safety goggles, looks through a microscope in a brightly lit laboratory.

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A round-bottomed flask filled with a vibrant blue liquid sits inside a heating mantle in a laboratory setting, with condensation visible on the glass neck.

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A scientist wearing a knitted kippah works at a laboratory bench with a blue burner flame and glass flasks under bright overhead lighting.