Korean scientist demonstrates chemical reactions to young students in a lab class.
Slowmo tilt up shot of female chemistry teacher doing experiment with curious schoolchildren in lab coats in modern classroom
Tracking shot of female chemistry teacher in lab coat and goggles holding glass flask with liquid and showing it to curious schoolchildren in classroom
Medium shot of blond female chemistry teacher showing steaming and bubbling glass flasks with colorful liquid to schoolchildren in lab coats
Waist up of group of multiethnic schoolchildren looking at chemical reaction in glass flask while conducting experiments at Science class with teacher
Scientist working with chemical reaction in chemistry lab. Chemical reaction in glass flask.
Scientist working with chemical reaction in chemistry lab. Chemical reaction in glass flask.
Scientist working with chemical reaction in chemistry lab. Chemical reaction in glass flask.
Scientist working with chemical reaction in chemistry lab. Chemical reaction in glass flask.
Scientist working with chemical reaction in chemistry lab. Chemical reaction in glass flask.
Scientist working with chemical reaction in chemistry lab. Chemical reaction in glass flask.
Scientist working with chemical reaction in chemistry lab. Chemical reaction in glass flask. Lab worker doing chemical experiment in