Φοιτητής κατά τη διάρκεια του πειράματος. Σκούρα μαλλιά δάσκαλος ρίψη υγρών σε δοκιμαστικό σωλήνα, ενώ όλη την ομάδα σε αναμονή για την αντίδραση - Φωτογραφίες & Εικόνες Αρχείου

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

Look here. Pleased brunette female taking sample while demonstrating her actions

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

Just attention. Group of kids being well equipped while visiting practical lesson

Be attentive. Positive delighted scientist keeping smile on her face while taking sample from test tube

Best teacher. Pleasant young chemistry teacher holding a big flask and commenting about an ongoing reaction in it while her students listening to her attentively

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

Interesting experiment. A group of cheerful students being gathered around the table during their chemistry class and watching the reaction going on in the big flask

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

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

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

Experiments with chemical liquids. Happy delighted curious kids experimenting with liquids and doing a scientific research while enjoying the activity

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