Συμπυκνωμένο αγόρι και κορίτσι εκμετάλλευση δοκιμαστικούς σωλήνες με αντιδραστήρια σε χημικό εργαστήριο - Φωτογραφίες & Εικόνες Αρχείου

Smiling little boys in lab coats making experiment in chemical laboratory

Concentrated little kids in lab coats making experiment in chemical laboratory

Three smiling kids in lab coats making experiment in chemical laboratory

Happy little boys holding flasks with reagents in chemical lab

Cute little boy in lab coat near flasks and test tubes smiling at camera

Three kids in white coats making chemical experiment in laboratory

Happy kids in lab coats posing in chemical laboratory and smiling at camera

Three happy kids in white coats making chemical experiment in laboratory

Boy and girl in lab coats looking at camera in chemical laboratory

Little boy in chemical laboratory choosing reagents in test tubes

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

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

Smiling little boy in eyeglasses making experiment in chemical lab

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

Little boy in chemical laboratory choosing reagents in test tubes

Surprised little boy in white coat holding test tube with reagent in chemical lab

Little boy in white coat using microscope in chemical laboratory

Adorable little girl showing thumb up sign and smiling at camera