El chico de la escuela usando anteojos de protección haciendo experimentos de química en la clase de ciencias primarias. Alumno con tubos de equipo en laboratorio - Foto e imágenes de stock

School boy wearing protection glasses doing chemistry experiment in elementary science class. Clever pupil with tubes in lab during test

Holds magnifying glass. Little girl in coat playing a scientist in lab by using equipment.

School boy wearing protection glasses doing chemistry experiment in elementary science class. Pupil with equipment tubes in lab

School boy wearing protection glasses doing chemistry experiment in elementary science class and mix components. Clever pupil with dirty face in lab during test

Smart girl doing scientific chemistry experiment wearing protection glasses and holding bottle with green liquid. Schoolgirl with chemical equipment on school lesson

School boy wearing protection glasses doing chemistry experiment in elementary science class. Pupil with equipment tubes in lab

Smart girl doing scientific chemistry experiment wearing protection glasses, holding bottle and measuring blue liquid. Schoolgirl with chemical equipment on school lesson

School boy wearing protection glasses with dirty face doing chemistry experiment in elementary science class and measuring components with spoon. Clever pupil in lab

Girl doing scientific chemistry experiment wearing protection glasses and measuring liquid. Schoolgirl with test equipment on school lesson

Smart girl during scientific chemistry experiment wearing protection glasses making notes. Schoolgirl with chemical equipment on school lesson

Girl doing scientific chemistry experiment wearing protection glasses. Schoolgirl with equipment and chemical liquids on school lesson

Smart girl during scientific chemistry experiment looking at glass with tests. Schoolgirl with chemical equipment on school lesson

Girl doing scientific chemistry experiment wearing protection glasses. Schoolgirl with equipment and chemical liquids on school lesson

Smart girl during scientific chemistry experiment wearing protection glasses, holding tubes and measuring ingridients. Schoolgirl with chemical equipment on school lesson

Girl doing scientific chemistry experiment wearing protection glasses and measuring liquid. Schoolgirl with test equipment on school lesson

Girl doing scientific chemistry experiment wearing protection glasses. Schoolgirl with equipment and chemical liquids on school lesson