Σχολική τουαλέτα και γάντια βλέποντας χημικό πείραμα στο σωλήνα στο εργαστήριο χημείας - Φωτογραφίες & Εικόνες Αρχείου

Schoolboy in chemistry lab got an idea practising experiments

Schoolboy in chemistry lab got an idea practising experiments

Schoolboy in chemistry lab got an idea practising experiments

Schoolgirl in white gown doing experiments with liquids in chemistry lab

Schoolboy gown and gloves watching chemical experiment in tube in chemistry lab

Schoolboy gown and gloves watching chemical experiment in tube in chemistry lab

Pop-eyed funny boy after chemical experiment in chemistry lab with fume

Happy smiling pupil drawing at the desk. Portrair close up. Kid is learning in class on background of blackboard. It was a little chemistry experiment. Chemistry lesson

Schoolboy gown and gloves watching chemical experiment in tube in chemistry lab

Little schoolgirl in white gown looking through magnifier on reagents in chemistry lab

Schoolgirl in chemistry lab in white gown pointing at formula on blackboard near table with reagents

Schoolgirl in white gown doing experiments with liquids in chemistry lab

Schoolgirl in white gown doing experiments with liquids in chemistry lab

Schoolgirl in white gown doing experiments with liquids in chemistry lab

Little smarl girl in white gown in chemistry lab doing an experiment

Excited schoolgirl in fume after chemical experiment in scool lab

School boy with dirty face wearing protection glasses looking at liquid in glass during chemistry experiment in elementary science class and smiling. Clever pupil in lab during test

Three excited funny children after chemical experiment in lab