Πορτρέτο του συμπυκνωμένου επιστήμονες που βλέπουν σε αντικειμενοφόρο πλάκα στο εργαστήριο - Φωτογραφίες & Εικόνες Αρχείου

Teacher and little student scientists working with microscope in laboratory

Portrait of smiling scientists working with microscope slide in lab

Teacher helps kid to conduct experiment with microscope in school lab

Happy adult scientists and little girl student working together in chemical lab and smiling at camera

Woman teacher and girl student scientists looking at glass microscope slide through magnifier

Man teacher and girl student scientists making experiment in chemical lab

Preteen schoolboy in lab coat looking at sample in test tube

Scientific study. Happy positive nice children being in the lab and feeling excited while observing the experiment

Professional chemists in white coats inspecting test tube with reagent in lab

Side view of concentrated woman scientist working with microscope in laboratory

Portrait of serious scientist working with laboratory tube

Side view of concentrated scientist working with laboratory tube

Side view of concentrated scientists examining laboratory tube

Side view of concentrated scientist working with microscope

Three cute kids in medical uniform playing doctors and looking at x-ray isolated on white

Young confident woman scientist in lab coat holding digital tablet and looking at camera