Profesor con alumno haciendo experimento en la mesa en clase de química - Foto e imágenes de stock

Teacher with pupil making experiment at table in chemistry class

Cute pupil doing biochemistry research in chemistry class

Teacher with pupil making experiment in chemistry class

Teacher with pupil making experiment at table in chemistry class

Teacher and pupils at chemistry lesson in classroom

Schoolboy holding Florence flask against blackboard with written chemistry formulas

Schoolboy looking through microscope and his classmates at chemistry lesson

Smart schoolboy making experiment in chemistry class

Smart pupil with test tubes in chemistry class

Smart schoolboy making experiment in chemistry class

Children doing chemical research in laboratory. Dangerous experiment

Children doing chemical research in laboratory. Dangerous experiment