Uczniowie w goglach ochronnych trzymających kolby podczas lekcji chemii - Zdjęcie stockowe & obraz

Pupils in protective goggles holding beakers during chemistry lesson

Helping with pleasure. Charming young chemistry teacher adding chemical to a test tube while helping a group of her students with an experiment

Happy little girls doing science project, they are mixing two colored liquids, pouring from one flask into another. Both wearing protective glasses.

Look here. Pleased brunette female taking sample while demonstrating her actions

Into chemistry. Two pleasant upbeat teenage girls in safety pouring chemicals in a big flask while conducting an experiment for their chemistry group project

Schoolboys with backpacks looking at camera near blackboard with educational icons

Group of kids preparing for sport competition and holding hands

Cropped image of educator standing near multicultural kids drawing in kindergarten

Tutor teaching multiethnic kids counting and showing number with fingers in kindergarten

Cropped shot of mother and daughter learning numbers on chalkboard

Group of happy kids holding hands in gym

Kids drawing pictures with colorful pencils while father using laptop on sofa at home

Cropped shot of mother and daughter learning math at home