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Schoolgirl in protective goggles holding flask with chemical sample
Kids in protective glasses and lab coats making experiment in chemical laboratory
Two schoolchildren in white gowns watching chemical experiment in lab
Little kids wearing lab coats and studying in science laboratory
Little girl wearing protective glasses when working with reagents in chemistry class
Little girl wearing lab coat and protective glasses holding flask with blue reagent
Schoolgirl holding flask with chemical sample while sitting in lab
Curly schoolboy in protective goggles looking at flasks and tubes
Schoolgirl in protective goggles looking at test tubes in lab
Little girl in white coat sitting on table and holding clipboard in science laboratory
Little girl in white coat sitting on table and making notes in science laboratory
Curly schoolboy studying with tubes in chemical laboratory
Little girl wearing lab coat and protective glasses holding flask with green reagent
Schoolboy in white lab coat taking notes during scientific experiment
Schoolboy in lab coat using microscope and making notes