Faites une description. Garçon attentif tenant le dossier dans la main gauche et tournant la tête à son collègue tout en regardant le processus - Photo & image de stock

Real scientists in action. Young up and coming researches using a chemistry set and mixing liquids while working on a scientific research in the school laboratory.

Young assistant. Curious clever positive boy standing near his teacher and helping her while performing an experiment

Experimenting in the laboratory. Smart schoolboys both wearing shirts looking at a fuming flask while performing an experiment with different liquids in the school laboratory.

Being a little scared. Nice curious interested boy standing behind his teacher and holding her shoulders while conducting an experiment

Big bottle. Beautiful little female person standing near workplace in the laboratory while keeping smile on her face and demonstrating her project

High School students concept. Pretty young girl working at chemistry class: mixing reagent liquids and using glassware

Lesson Plans - Middle School Chemistry. Ready for school. Experiment. First grade. First school day. My chemistry experiment. Chemistry science.

Show your smile. Delighted male person pouring powder into glass bottle while giving explanations to his pupils that visiting his lessons

Remember this task. Smiling girls standing next to each other and expressing positive emotions while looking at the smoking flask

Chemistry workshop. Delighted intelligent cute girls standing near the table and watching the experiment while attending the chemistry workshop

Need to wait to see the reaction. Two smiling schoolgirls watching their teacher showing a laboratory flask with a chemical liquid while performing an experiment during a practical lesson.

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

Non-professional researchers. Pleasant female teacher asking her schoolboy about experiment which they passing in school

So much fun. Two young ladies getting pretty excited while holding a fuming vacuum flask and chatting about the chemical experiment held by their teacher.

Have a look. Cheerful African boy wearing safety glasses while doing chemical experiment

Chemistry workshop. Delighted intelligent cute girls standing near the table and watching the experiment while attending the chemistry workshop