Ομάδα τα παιδιά σχολείο στην τάξη σε μαυροπίνακα φόντο - Φωτογραφίες & Εικόνες Αρχείου

Happy teenage boy and girl looking at molecular structure at desk in classroom

Young school kids doing a chemistry experiment with the little boy holding the flask steady while the little girl pours over a colourful liquid

Teenage schoolchildren examining molecular structure at desk in lab

Happy children sitting by the table during lesson

Portrait of young students looking at the camera over the blackboard background

Laughing children posing over the blackboard background

Happy smiling little boy and girl studying together, books and piggy bank on table

Elementary student little boy showing thumb up

Smiling Happy children sitting by the table during lesson

Group of happy teen school child with book. Isolated.