Menino em luvas de proteção e óculos estudando sedimentos em frasco com líquido vermelho - Banco de fotos e imagens

Little nerd comparing colorful liquids in flasks watching reaction, chemistry

Chemist boy looking at flasks with liquids contemplating about experiments

Schoolboy looking at red liquid in flask and scratching head, having no idea

Boy in protective glasses pouring chemical substance in tube, checking reaction

Schoolboy looking at chemical substance in test tube, chemistry lesson, hobby

Sad boy thinking about new scientific experiments during chemistry lesson

Female chemist looking at colored liquids in flasks, developing new substance

Female scientist comparing flasks with colored liquid, detergent laboratory

Female chemist studying presence of sediments in flask with red liquid in lab

Chemistry student mixing liquids in scientific laboratory, conducting experiment

Chemistry student dripping liquid in test tube conducting experiment in lab

Female chemist observing reaction holding test tube in hand, experimentation