Výměna myšlenek. Dvě veselé dospívající chlapci mají třídu chemie v laboratoři a diskuse o chemické reakce v baňce v jedné ruce chlapce - Stock fotografie a obrázky

Proud with result. Handsome teenage boy in safety glasses holding a big flask with a chemical reaction going on inside it and posing for the camera, puffing his chest with pride

Examining thoroughly. Joyful teenage boy examining a chemical substance in the flask with a magnifying glass while his classmate holding that flask for him

Curious little scientist. Pleasant teenage boy conducting an experiment in the lab and looking at a big chemical flask in his hands, observing the ongoing reaction in it

Fair assessment. Pleasant young teacher holding a flask and checking the result of her students chemical experiment while the boy asking her advice about his experiment

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

Experimenting with chemicals. Two upbeat teenage friends using pipette and adding some chemical agents to the flask and test tubes while having the chemistry class in the lab

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

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

Getting interested. Pretty cute curious girl standing near the table and looking at the scientists hand while being interested in science

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

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

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

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

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

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

Taking notes. Thoughtful smart serious boy looking at the chemical flask and noting down results of the experiment while having a science lesson