Fiú és lány csinál kémiai kísérlet. szakadó folyékony főzőpohárba - Stock fotó és kép

Project, testing, pouring.

Children doing chemical experiment with glass tubes

Project testing experiment youngster liquid boy filtering

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

Happy children studying science on background

Happy children studying science on background

Boy and girl doing chemical experiment. pouring liquid into beaker

Little classmates in safety goggles smiling and looking at camera while sitting at table with flasks with colorful liquids during chemistry lesson at school

Young female scientist standing in her lab.

Scientist man with colored liquid in his laboratory

Two scientists conducting research in a lab environment

Female Scientist Working with Microscope in Laboratory

Two scientists conducting research in a lab environment

Child doctor pediatrician playing physical injury hospital illness