Teacher conducting chemistry lesson in classroom
Contributor: Pixel-Shot
ID : 336265991
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Palabras clave
background, boy, caucasian, chemical, chemistry, children, children, class, classroom, clever, conducting, desk, education, exercise, experiment, flask, girl, glassware, growth, children, cognition, laboratory, learn, lesson, liquid, little, male, man, people, person, pupil, reaction, reagent, research, sample, school, science, scientific, sitting, smart, solution, study, studying, table, task, teacher, test, workElementos relacionados
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