No people closeup of unrecognizable orange liquid bubbling and evaporating in glass flask during chemical experiment in school lab
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Scientist hand filling pipette from flask making laboratory experiment closeup. Serious lab technician putting sample under microscope
Close-up of chemical poured into flask in laboratory.
Bottle and liquid nitrogen in a laboratory. Chemical experiment. Flask with water and dry ice boiling chemical experiment
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Close up of Rotating scientific Equipment, flasks with test tubes in Chemical laboratory
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scientist mixing two clear transparent liquids in a beaker Spbd. Pouring liquid into flask using pipette. medical pharmaceutical experiment in laboratory. scientific expertise. lab equipment.
Medium shot of female Biracial lab worker taking flask with purple liquid from shelf showing it to female Caucasian colleague
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Laboratory technicians handling flasks and glassware.
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Medium slowmo of Biracial schoolboy in lab coat making chemical experiment by putting brown powder and transparent liquid into glass flask and having lab smoke from flask as reaction
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Close-up rear shot of multiethnic male and female chemists standing in laboratory, examining flask with purple permanganate solution, discussing colour, checking for residue
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Milk in a flask in laboratory
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Unrecognizable scientist mixing liquids in flasks near computer while researching vaccine during pandemic in laboratory
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Close-up of chemical flask with H2O inscription which fogged up. Laboratory glass material.
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Timelapse of diverse team of scientists working with flasks and computer in laboratory at daytime
Close-up shot of camera in tripod filming young female scientist in white coat and glasses sitting at desk in lab, demonstrating flasks with bright chemical solutions, while giving online lecture
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Scientist studying liquid substances in chemical laboratory
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Laboratory assistant pours the water into the flask
Chemistry specialist looking at sample of blood from vacutainer in laboratory. Doctor woman holding glass flask with fluid for examination. Chemical tubes in microbiology lab industry
Close-up of flask with chemical liquid. Clip. Laboratory conducts experiments with chemical liquid that changes colors. Chemical process in