Βρώμικο μαθητής κρατώντας εξοπλισμό χημείας, έκρηξη κατά τη διάρκεια του πειράματος - Φωτογραφίες & Εικόνες Αρχείου

Shocked funny dirty schoolboy holding chemical tube and flask, smoke around him

Shocked schoolboy sitting in cloud of smoke, explosion during experiment

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Kid study chemistry. Biotechnology and pharmacy. Genius pupil. Education concept. Wunderkind experimenting with chemistry. Boy test tubes liquids chemistry. Chemical analysis.

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Chemistry student mixing liquids in scientific laboratory, conducting experiment

Woman scientist holding pipette with liquid and taking test tube with reagent

Chemistry student dripping liquid in test tube conducting experiment in lab

Chemistry experimenter writing down results of scientific researches in lab

Pupil holding textbook pointing piece of chalk at physics formula on blackboard

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