Preteen μαθητής στο εργαστήριο παλτό βλέπουν δείγμα σε δοκιμαστικό σωλήνα - Φωτογραφίες & Εικόνες Αρχείου

Preteen schoolboy in lab coat looking at sample in test tube

Schoolchildren in lab coats studying in chemical laboratory

Preteen schoolboy in lab coat looking at sample in test tube

Four kids in science laboratory wearing coats and standing at table

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

Four kids wearing protective glasses in science laboratory

Three excited funny children after chemical experiment in lab

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

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

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

Curly schoolboy in protective goggles looking at flasks and tubes

Schoolboy in white lab coat taking notes during scientific experiment

Schoolboy in lab coat using microscope and making notes

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

Curly schoolboy studying with tubes in chemical laboratory

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

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

Curly schoolboy in protective goggles looking at flasks and tubes

Little girl in white coat sitting on table and holding clipboard in science laboratory