Teste de chama em laboratório escolar

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 photo of a man with a buzz cut and safety glasses holding a copper wire in a glowing green Bunsen burner flame, laboratory Ver mais

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A young boy with short dark hair and safety goggles observes a bright crimson flame from a spirit burner in a dimly lit laboratory setting.

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 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.

A young woman with ash-blond hair in a ponytail, wearing a white lab coat and safety goggles, examines a purple liquid in a glass flask inside a laboratory fume hood.

A chemistry laboratory bench filled with various glass flasks and bottles under dim blue lighting at night.

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 Latina woman with a black ponytail wearing a white lab coat works with blue chemical crystals and glass beakers on a black slate laboratory bench under cool overhead lighting.

A young man with long dark hair tied back and glasses observes a glowing violet laser inside a metallic vacuum chamber in a laboratory setting.

A smiling man with cornrows and a white lab coat holds a glass flask in a futuristic laboratory filled with holographic molecular diagrams and a DNA helix.

A man with a beard works with a glowing piece of molten glass on a metal table in a glassblowing studio, with a furnace burning in the background.

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 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 cartoon illustration of a middle-aged man with a shaved head and glasses perched on his forehead, wearing a white lab coat, peering intently at a glowing green flask in a dimly lit laboratory.

A man with short platinum-blond hair and a beard is illuminated by the warm glow of a glass furnace in a dark studio.

A young woman with blonde hair in a high ponytail shapes a glowing glass vase with wooden blocks in a sunlit glassblowing studio, with steam rising from the wet tools.

A laboratory benchtop centrifuge with its lid open sits under a bright task lamp, with a rack of test tubes nearby in a dimly lit room.

A young boy with curly hair examines a sample through a microscope on a wooden kitchen table, illuminated by a desk lamp with a view of an Edinburgh cityscape through the window behind him.

An empty glassworks factory at night with glowing orange furnace mouths and glass gathering tools resting on racks and tables.

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 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 smiling female scientist with dark curly hair and safety goggles holds a flask of violet liquid in a well-lit laboratory setting.

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.

A glass distillation apparatus sits on a heating mantle in a laboratory, with yellow vapor rising into a coiled condenser and clear liquid dripping into a collection flask under cool ambient lighting.

A young red-haired boy with freckles leans over a glass beaker on a black lab table in a classroom filled with science equipment and posters.

A glassblower stands in silhouette before a glowing furnace in a workshop, holding a blowpipe with molten amber glass, with finished lamp shades on a shelf nearby and blue winter light visible through the window.

A woman with dark brown skin and a ponytail, wearing glasses and a lab coat, works at a laser bench in a dark laboratory where a green laser beam illuminates her face.

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

A young East Asian woman with long black hair and dewy makeup wears clear safety goggles while working in a dimly lit laboratory with blue accent lighting.

A glassblower wearing a leather apron stands with his back to the camera, holding a blowpipe with a glowing gather of molten glass into the opening of a furnace in a dark workshop.

A woman with a short dark haircut and pearl earrings looks through the eyepiece of a microscope in a dimly lit laboratory.

A young woman with a platinum pixie cut and winged eyeliner looks through a binocular microscope in a dimly lit laboratory illuminated by cool blue LED panels.

A silhouette of a person with a ponytail holds a glassblowing rod in front of a glowing, bright orange glass furnace in a dark workshop.

A young man with tousled dark blond hair and light stubble leans over an electric motor clamped in a vice on an engineering lab bench, surrounded by electronic equipment and spools of wire under cool overhead lighting.

A man with long dark hair tied back works with a glowing glass furnace in a workshop, holding a blue glass rod in the intense orange flames.

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 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.

A man with a beard and glasses wearing a white lab coat and safety goggles on his head stands in a laboratory with a fume cupboard and test tubes in the background.

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.

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.

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.

A young woman with a dark bob haircut, wearing a white lab coat and safety goggles, works at a laboratory bench with a rack of test tubes containing blue liquid under cool overhead lighting.

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

A man with wavy chestnut hair and hazel eyes uses a propane torch to solder a copper pipe joint in a dimly lit basement.

A young man with a buzz cut and moustache works in a dark glassblowing studio, illuminated by the orange glow of a furnace while holding a pipe with molten glass.

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 man with short dark hair and a beard works in a glassblowing studio, shaping a glowing orange gather of molten glass on a blowpipe in front of a lit furnace.

A young man with curly brown hair and freckles works in a dark glassblowing studio, illuminated by the orange glow of molten glass on a blowpipe.

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.

Professor Mortimer in a white lab coat smokes a pipe while operating a complex, glowing green machine in a dimly lit, book-filled laboratory.

A glassblower in silhouette works with a glowing orange glass bauble on a blowpipe in front of a bright, open furnace at night.

A woman glassblower wearing safety glasses and gloves shapes a piece of glowing molten glass with a wooden block in a dimly lit studio.

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

A laboratory Bunsen burner produces a brilliant emerald green flame while a metal loop held by a hand is heated within it, set against a dark, out-of-focus laboratory background.

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.

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 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.

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.

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

A scientist in a white lab coat sits in a wheelchair at a laboratory bench, facing a rack of glass flasks and a lit Bunsen burner, with large windows showing a deep blue dusk in the background.

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A portrait of a middle-aged man with short dark blond hair and a beard, illuminated by the warm orange glow of a furnace in a glassworks studio.

A glass beaker filled with bright orange liquid sits on a magnetic stirrer, showing a prominent vortex created by a spinning stir bar on a laboratory bench.

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A scientist in a white lab coat uses tweezers to hold an acorn over a metal tray in a laboratory setting.