Een kind jongen gieten vloeistof in een buis - Stockvideo’s

Serious little boy playing with chemical liquids

Serious little boy playing with chemical liquids

Experiments on chemistry at home. Boy heats the test tube with red liquid on burning alcohol lamp. The liquid boils

Experiments on chemistry at home. Chemical reaction with the release of gas in a test tube in the hands of a surprised boy

Experiments on chemistry at home. Boy heats the test tube with red liquid on burning alcohol lamp

Serious little boy playing with chemical liquids

Serious little boy playing with chemical liquids

Little boy doing biochemistry research at the lab

Little boy doing biochemistry research at the lab

Cute boy is making science experiments in a laboratory. Education.

Cute boy is making science experiments in a laboratory. Education.