Smart school boy regarde les réactifs dans les éprouvettes, gros plan - Photo & image de stock

Portrait of young boy posing in laboratory, close-up

Image of nosy schoolboy watching reaction of experiment

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Attentive boy looking at color of reagent in test-tube

Pop-eyed funny boy after chemical experiment in chemistry lab with fume

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Pretty smiling girl working with reagents in laboratory

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Curious schoolgirl pouring reagent into flask in laboratory

Little chemist looking at test tube through magnifier, close-up