Happy dospělého vědce a malé studentky pracují společně v chemické laboratoři a usmívá se na kameru - Stock fotografie a obrázky

Portrait of smiling scientists working with microscope slide in lab

Portrait of concentrated scientists looking at microscope slide in lab

Smiling teacher in white coat and protective goggles embracing pupils during chemistry lesson

Adult scientists and little girl in goggles with tubes in laboratory

Scientific development. Handsome positive cheerful man smiling and looking at the test tube while working in the lab

Smiling teacher in white coat and protective goggles embracing pupils during chemistry lesson

We are the winners. Good looking happy nice girls smiling and holding the certificate while winning the scientific competition

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

Portrait of cheerful scientist showing laboratory tubes and looking to camera

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 smiling scientists in uniforms holding laboratory tubes

Portrait of smiling scientist working with microscope and looking to camera

Portrait of serious scientist working with laboratory tube

Portrait of smiling scientist showing laboratory tubes and looking to camera

Side view of concentrated scientists examining laboratory tube