Over-shoulder of male chemistry teacher in medical gown and protective goggles standing in front of high school students in morning, making experiment with chemicals
Over-shoulder of male chemistry teacher in medical gown and protective goggles standing in front of high school students in morning, mixing transparent and violet chemical liquids
Side view of male chemistry teacher in medical gown and protective goggles standing in front of high school students in morning, making experiment with chemicals
Medium long of male teacher in medical gown and protective goggles standing in foreground of blackboard, showing experiment on chemistry lesson
Medium long of male chemistry teacher in medical gown and protective goggles standing in front of high school students in morning, holding beaker with liquid
Long shot of male teacher in medical gown and protective goggles standing in front of high school students who sitting at desks on chemistry lesson
Low angle of Caucasian male teacher in medical gown and protective goggles standing in foreground of blackboard, shaking beaker on chemistry lesson
School kids watching teacher prepare chemistry experiment
Young child in lab goggles with materials for experiments. Teacher assisting student. Classroom chemistry in school.
Excited multiracial high school students with mixed race female teacher doing chemical experiment during lesson. Curious diverse classmates in protective glasses studying chemistry looking at reaction
Over the shoulder shot of female teacher in protective mask holding pen and paper and talking with student during lesson in classroom
Asian science teacher with goggles looks at girl student doing experiment with liquids at chemistry lesson in classroom extreme closeup