Roztomilý chlapeček v laboratorní plášť baňky a zkumavky se usmívá na kameru - Stock fotografie a obrázky

Cute little boy leaning at table and smiling at camera in chemical lab

Cute little boy in lab coat holding test tube with reagent and smiling at camera

Excited little boy in lab coat making experiment in chemical laboratory

Three smiling kids in lab coats making experiment in chemical laboratory

Little boy in protective glasses making experiment in chemical laboratory

Clever little boy in goggles looking at blue liquid in flask and thinking while conducting experiment during chemistry lesson in school

Smiling little boys in lab coats making experiment in chemical laboratory

Cute little boy in lab coat holding flasks with reagents and smiling at camera

Smiling little boy in eyeglasses holding flasks with reagents while making experiment in lab

Excited little girl in lab coat making experiment in chemical laboratory

Little girl in white coat standing at the table with chemical samples in laboratory

Concentrated little girl in lab coat making experiment in chemical laboratory

Little boy in chemical laboratory choosing reagents in test tubes

Little boy in chemical laboratory choosing reagents in test tubes

Little boy in lab coat holding flask with reagent in chemical laboratory

Little girl using microscope and boy making notes in chemical laboratory

Little boy and girl in white coats using microscope in chemical laboratory