Alumnos con frascos haciendo experimento químico durante la lección de química - Foto e imagen de stock

Smart pupils making experiment at table in chemistry class

Smiling schoolgirl with beakers doing chemical experiment during chemistry lesson

Not do it. Good looking glad boy mixing liquids while frightened girl shouting and standing behind him

Dangerous experiment. Beautiful nice girl covering her mouth while looking at cheerful boy who combining liquids

Three kids in white coats making chemical experiment in laboratory

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

Happy preteen kids in white coats looking at camera near microscope and test tubes with flasks

Optician holding lenses for trial frame while colleague examining kid with visual field test

Schoolboys with backpacks looking at camera near blackboard with educational icons

Doctor waiting for female patient suffering from toothache in modern dental clinic

Female optometrist with lenses for trial frame while colleague examining kid with visual field test

Handsome young dentist showing tablet to female client

Doctor in uniform and eyeglasses making injection in training pad near medical equipment and multiethnic students in white coats, emergency preparedness and skills development concept

Female optometrist holding lenses for trial frame while colleague examining kid with visual field test

Cropped shot of mother and daughter learning numbers on chalkboard