Ευτυχισμένος μικρό κορίτσι δείχνει δοκιμαστικό σωλήνα με αντιδραστήριο και χαμογελαστός στην κάμερα - Φωτογραφίες & Εικόνες Αρχείου

Happy little girl holding test tubes with chemical samples

Little girl scientist holding flask with reagent and smiling at camera

Little girl experimenting in chemistry class - understanding density and specific weight

Schoolgirl looking through microscope in science class

Asian Chinese Little Girl Examining Test Tube With Uniform in isolated white background.

Schoolgirl with microscope at table in chemistry class

Amazed girl in white coat and goggles looking at blurred test tube in lab

Schoolgirl looking through microscope in science class

Happy Asian Chinese Little Girl Examining Test Tube With Uniform in isolated white background.

Excited little girl scientist making experiment in laboratory

Little boy in chemical laboratory choosing reagents in test tubes

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

Little boy in white coat holding test tubes with reagents in chemical lab

Cute little boy leaning at table and smiling at camera in chemical lab

Smiling little boy in eyeglasses making experiment in chemical lab

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

Little boy in protective glasses making experiment in chemical laboratory

Smiling little boy in lab coat pointing up with finger in chemical laboratory

Excited little boy in lab coat making experiment in chemical laboratory

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

Smiling little boys in lab coats making experiment in chemical laboratory