Experimente zur Chemie zu Hause. Chemische Reaktion mit der Freisetzung von Gas im Reagenzglas in den Händen des Jungen - Stock-Footage & -Video

Man writing dollar sign on transparent surface using green marker, hand closeup. Online finance lecture, education, business presentation, teaching. Money, currency, exchange rate.

Chipization of people. Implantation of chip in hand. Medical health control of citizens.

Woman taste wine with finger, shallow depth of field, slow motion

Cropped view of scientist shaking flask with blood

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

Sick boy inhaling through inhaler mask, nose and lips close-up side view. Use nebulizer and inhaler for the treatment

Woman pours the saline from the syringe into the container for the inhaler

Use nebulizer and inhaler for the treatment. Young woman inhaling through inhaler mask

Woman picking up the syringe with saline for inhalation

Little cute girl inhaling through inhaler mask with her mom. Use nebulizer and inhaler for the treatment