Boy, school, chemical lessons,

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Photo credit: © Uwe Umstätter / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 7-8, attempt, boy, chemical, chemistry, child, classroom, education, experiment, glasses, hold, interest, knowledge, laboratory, learning, lessons, liquids, person, portrait, positively, protection, research, safety, school, schoolboy, security, test, tube, vessels, years