Δάσκαλος και μαθητής επιστήμονες σε προστατευτικά γυαλιά κάνει πείραμα στο εργαστήριο - Φωτογραφίες & Εικόνες Αρχείου

Man teacher and girl student scientists in protective glasses making experiment in lab

Teacher and student scientists in protective glasses working in chemical lab

Education, science and children concept - kids with test tubes studying chemistry at school laboratory

Little girl scientist in protective goggles making experiment in chemical lab

Male and female scientists working in a science laboratory with various equipment in the laboratory.

Male and female scientists working in a science laboratory with various equipment in the laboratory.

Adult scientists and little girl in goggles with tubes in laboratory

Education, science, chemistry and children concept - kids or students with test tube making experiment at school laboratory

Young man scientist in eyeglasses and white coat examining test tube in laboratory

Side view of concentrated scientists examining laboratory tube

Smiling scientist holding molecular model in laboratory, focus on foreground

Side view of concentrated woman scientist working with microscope in laboratory

Side view of young man scientist holding test tube with reagent in lab

Side view of man scientist in eyeglasses looking at test tubes with reagents in lab

Portrait of serious scientist working with laboratory tube

Portrait of concentrated scientists using digital tablet for analysis in laboratory