A mintát kémcsőben nézett laborköpeny preteen iskolás - Stock fotó és kép

Preteen schoolboy in lab coat looking at sample in test tube

Preteen schoolboy in lab coat looking at sample in test tube

Schoolboy in lab coat holding magnifying glass and looking at sample in tube

Education, science and children concept - kids studying chemistry at school laboratory and writing to workbooks

Schoolboy looking through microscope and his classmates at chemistry lesson

Four kids wearing protective glasses in science laboratory

Education, science and children concept - kids or students with microscope studying biology at school laboratory

Little boy and girl in white coats using microscopes and reagents in chemical laboratory

Schoolboy in lab coat using microscope and making notes

Curly schoolboy in protective goggles looking at flasks and tubes

Schoolboy in white lab coat taking notes during scientific experiment

Schoolgirl in protective goggles looking at test tubes in lab

Little boy sitting in sink in science laboratory and holding test tubes with reagents

Curly schoolboy studying with tubes in chemical laboratory

Little girl wearing lab coat and protective glasses holding flask with green reagent

Little girl wearing lab coat and protective glasses holding flask with green reagent

Little girl wearing lab coat and protective glasses holding flask with green reagent

Schoolboy in white lab coat taking notes during scientific experiment