Faire Beurteilung. angenehme junge Lehrerin hält einen Kolben in der Hand und überprüft das Ergebnis ihres chemischen Experiments, während der Junge sie um Rat zu seinem Experiment fragt - Stockfoto & -bild

Be careful. Delighted brunette female standing between her pupils while looking at glass bulb

Special science equipment. Children playing with test tubs filled with colored reagents wearing protective glasses and gloves

Helping with pleasure. Charming young chemistry teacher adding chemical to a test tube while helping a group of her students with an experiment

Student during experiment. Dark-haired teacher dropping liquid in test tube while whole group waiting for reaction

Be careful. Pleasant chemistry teacher looking at her students with a worried expression while they mixing chemicals in a wrong way

Fond of chemistry. Cheerful teenage boys holding chemical flasks with fuming substances and observing the reactions with curiosity while having a chemistry class in the lab

Busy with work. A group of teenage students and their young female teacher mixing chemicals and discussing their common experiment, being busy

Wonderful chemistry. Upbeat teenage students in safety goggles observing the chemical reaction in a flask and looking at it with a surprised expression

Magic of science. Professional smart male scientist holding a chemical flask and showing a chemical reaction while having a scientific workshop

Chemical reaction. Nice experienced intelligent scientist holding a chemical reagent and holding a flask while trying to show an experiment

Science is interesting. Delighted positive pretty girls looking at the chemical reagent and smiling while enjoying their time in the chemical lab

Noting information. Delighted boy keeping smile on his face and bowing head while mixing two reagents

Wonders of chemistry. Confident professional male scientist holding chemical flasks and showing an experiment while interacting with kids

Interesting chemistry. Serious thoughtful bearded man holding a chemical flask and looking at the liquid in it while showing the children an experiment

Dangerous chemicals. Intelligent nice bearded man wearing a glove and holding a dangerous chemical reagent while showing it to other children

Involved in the activity. Nice smart thoughtful girls standing around chemical reagents and working with them while being in the laboratory