Τα παιδιά στο εργαστήριο και προστατευτικά γυαλιά παλτά κάνοντας πείραμα σε χημικό εργαστήριο - Φωτογραφίες & Εικόνες Αρχείου

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

Two schoolchildren in white gowns watching chemical experiment in lab

Little kids wearing lab coats and studying in science laboratory

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

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

Schoolgirl in protective goggles looking at test tubes in lab

Schoolboy in white lab coat taking notes during scientific experiment

Schoolboy in lab coat using microscope and making notes