Πορτρέτο του σοκαρισμένος κορίτσι στο παλτό εργαστήριο και προστατευτικά γυαλιά - Φωτογραφίες & Εικόνες Αρχείου

Emotional child in laboratory after explosion. Dangerous experiment

Portrait of girl in white coat with flask with chalkboard behind in science laboratory

Explosion in the laboratory,funny crazy scientist boy working in a laboratory

Little funny chemist

Little funny chemist

Little funny chemist

Lesson Plans - Middle School Chemistry. A chemistry demonstration. First grade. Back to school. They carried out a new experiment in chemistry. Ready for school.

Shocked schoolboy sitting in cloud of smoke, explosion during experiment

Portrait of adorable boy posing in studio with flasks, close-up

Little funny chemist

Shocked boy in white coat and protective glasses after experiment in science laboratory

Portrait of little boy in lab coat and protective glasses with chalkboard behind

Little scientist in white coat and protective eyeglasses holding clipboard and smiling at camera, science student concept

Portrait of little girl screaming into telephone tube at workplace isolated on grey

Close-up partial view of schoolchild drawing chemical formula on chalkboard, science school concept

Portrait of child with paper bag on head showing thumb up isolated on grey

Portrait of little boy talking on telephone at workplace isolated on grey

Portrait of shocked little girl in eyeglasses with telephone tube lying on table

Portrait of focused little boy talking on telephone at workplace isolated on grey