Sérieux fille dans lunettes verser de la poudre dans fiole près ami souriant dans laboratoire chimique - Photo & image de stock

Amazed girl in goggles looking at friend near flask with red liquid in chemical lab

Amazed friends in goggles looking at flask with red substance in laboratory

Smiling boy holding flask with liquid near serious girl in goggles

Children doing chemical research in laboratory. Dangerous experiment

Amazed kids in goggles looking at blurred flask with liquid while doing chemical experiment in lab

Astonished girl in goggles pouring liquid into flask during chemical experiment near smiling friend

Two schoolchildren in white gowns watching chemical experiment in lab

Ill african american scientist holing napkin near medical equipment and colleague

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

Handsome scientist in latex gloves holding sample with coronavirus lettering

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

Tattooed scientist in latex gloves looking through microscope in laboratory

Side view of handsome scientist touching bottle with toxic sign and looking at clipboard

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

Side view of scientist in protective mask working near arabian colleague with pipette on blurred foreground