Guarda un po '. Ragazzo adolescente ottimista che solleva una grande fiaschetta e mostra la reazione in corso al suo interno ai suoi compagni di classe mentre stanno facendo un corso di chimica in laboratorio insieme - Foto e immagini stock

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

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

Chemistry lovers. Upbeat teenage female students pouring chemical into the flask and smiling while carrying out an experiment in the school laboratory during chemistry class

Correct reaction. Charming teenage schoolgirls holding chemical flasks and checking the correctness of chemical reaction taking place in them

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

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

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

Best explanation. Beautiful young female teacher adding chemical to the test tube and showing her students the reaction while they paying attention

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

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

Chemical reaction. Selective focus of a chemical flask filled with liquid and being held by a professional mala scientist while conducting the experiment

Scientific club. Nice smart serious teenager holding flask and pouring chemical liquid while taking part in science club meeting

Having fun. Delighted curious positive children standing around the table and mixing chemical reagents while conducting an experiment

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

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