Ragazzino seduto nel lavandino del laboratorio di scienze e con in mano provette con reagenti - Foto e immagini stock

Relaxed little boy sitting in sink in science laboratory

Schoolchildren in lab coats sitting together in chemical laboratory

Four kids in science laboratory wearing coats and standing at table

Preteen schoolboy in lab coat looking at sample in test tube

Preteen schoolboy in lab coat looking at sample in test tube

Schoolchildren in lab coats making experiment with test tubes in chemical laboratory

Four kids in science laboratory wearing coats and standing at table

Little boy sitting in sink in science laboratory and holding test tubes with reagents

Four kids wearing protective glasses in science laboratory

Rear view of little boy wearing lab coat in science laboratory

Little boy wearing lab coat in science laboratory

Little boy in eyeglasses holding box with test tubes

Little boy wearing lab coat making notes in clipboard in science laboratory

Schoolboy in lab coat holding magnifying glass and looking at sample in tube

Little boy adjusting empty test tubes in science laboratory

Preteen schoolboy in lab coat looking at sample in test tube

Preteen schoolboy in white lab coat using microscope

Schoolgirl in protective goggles holding flask with chemical sample near chalkboard