Μικρό κορίτσι που φοράει παλτό εργαστήριο και προστατευτικά γυαλιά, κρατώντας τη φιάλη με πράσινο αντιδραστήριο - Φωτογραφίες & Εικόνες Αρχείου

Little girl wearing lab coat and protective glasses holding flask with green reagent

Schoolgirl holding flask with chemical sample while sitting in lab

Schoolgirl in protective goggles holding flask with chemical sample near chalkboard

Kids in protective glasses and lab coats making experiment in chemical laboratory

Schoolgirl in protective goggles holding flask with chemical sample

Education, science and children concept - girl with magnifier studying test tube with chemical at school laboratory

Schoolgirl in protective goggles holding flask with chemical sample

Schoolchild in lab coat and protective goggles looking at flask with green sample

Kids in protective glasses and lab coats making experiment in chemical laboratory

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

Curly schoolboy in protective goggles looking at flasks and tubes

Schoolgirl holding flask while her classmate taking notes in lab

Kids in protective glasses and lab coats making experiment in chemical laboratory

Schoolgirl in protective goggles holding flask with chemical sample

Schoolchildren making experiment with test tubes and flasks in chemical laboratory