Szczęśliwy dzieci z brudne twarze patrząc na aparat podczas eksperymentu chemicznego w laboratorium - Zdjęcie stockowe & obraz

Girl in goggles standing with outstretched hands near steaming flasks and smiling friend with dirty face

Two pupils at chemistry lesson are standing near blackboard

Astonished boy with dirty face holding tweezers near steaming flask and surprised girl

Astonished children with dirty faces touching heads while looking at steaming bowl in chemical lab

Two little kids in lab coat learning chemistry in school laboratory. Studying ingredients for experiments . Young scientists in protective glasses making experiment in lab or chemical cabinet

Two pupils at chemistry lesson are standing near blackboard

Scientist in goggles holding electronic pipette near african american colleague with clipboard and test tubes

African american scientist standing near colleague in vr headset near equipment in lab

Side view of interracial scientists in protective masks working with medical equipment near laptop in lab

Selective focus of scientist in white coat holding clipboard and touching test tube

Scientist in hazmat suit and latex gloves holding test tube with coronavirus lettering

Scientist in latex gloves and medical mask writing in notebook near test tubes and microscope

Handsome scientist writing near microscope and test tubes

Handsome scientist in latex gloves holding sample with coronavirus lettering