Lächelnder bärtiger Lehrer und ernsthafter kleiner Schüler machen Experimente im Labor - Stockfoto & -bild

Smiling bearded teacher and serious little student making experiment in lab

Smiling bearded teacher and little student working with microscope and test tube in lab

Side view of smiling scientists working in laboratory with microscope and taking notes

Young scientists working in laboratory. Chemical analysis

Young scientists working in laboratory. Chemical analysis

Chemical project. Nice positive smart chemists standing together and smiling while working on a chemical project

Smiling chemist in protective eyeglasses holding test tube with reagent in lab

Two happy scientists in white coats working together with microscope in chemical laboratory

Professional scientist in protective eyeglasses making experiment with reagents in test tubes

Caucasian scientist working with microscope while her colleague looking at flask behind in chemical laboratory

Two scientists in white coats working together with microscope in chemical laboratory

Concentrated caucasian scientists in uniform working with microscope and flasks in chemical laboratory

Professional chemists in white coats working with microscopes in laboratory and looking at camera

Team of mature scientists working together in lab and looking at each other