In the video, a person is seen holding a yellow sponge and dipping it into a container filled with blue liquid. The person then proceeds to rub the sponge on the side of the container, causing the liquid to bubble and foam. The person continues to rub the sponge on the container, creating more bubbles and foam. The container appears to be made of plastic and is filled with a blue liquid that is bubbling and foaming due to the rubbing of the sponge. The person's hand is visible, and they are wearing a yellow sponge on their finger. The background is not visible, and the focus is on the action of the person rubbing the sponge on the container.