Szczęśliwy chłopiec trzyma butelkę w pobliżu probówek i mikroskopu podczas eksperymentu chemicznego - Zdjęcie stockowe & obraz

Boy in white coat looking into microscope near test tubes and flasks in lab

Smiling boy in goggles holding bottle near blurred test tubes during chemical experiment in laboratory

School boy wearing protection glasses with dirty face doing chemistry experiment in elementary science class. and measuring colorful liquids Clever pupil in lab

School boy doing chemistry experiment measuring chemical liquids in elementary science class. Clever pupil analyzing results of test in lab

Smart girl doing scientific chemistry experiment wearing protection glasses, holding bottle and measuring blue liquid. Schoolgirl with chemical equipment on school lesson

Preteen kid in goggles and latex gloves looking into microscope near test tubes

Girl in goggles holding flask near microscope in laboratory

Brunette girl in goggles looking at camera and holding flask in chemical laboratory

Smiling girl in goggles showing hands in latex gloves near flasks and test tubes in lab

Happy brunette girl in goggles pouring red liquid from test tube into flask during chemical experiment in lab

Preteen girl in eyeglasses and white coat holding flask near microscope and test tubes

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

Preteen girl in eyeglasses and white coat looking at test tube in chemical laboratory

Preteen girl in goggles and white coat smiling at camera near microscope in lab

Side view of preteen girl in goggles looking into microscope in chemical laboratory