In the video, a person is holding a yellow pH meter and measuring the pH level of a rock that is submerged in water. The rock is placed in a clear plastic container, and the person is using the pH meter to measure the pH level of the water surrounding the rock. The pH meter has a digital display that shows the pH level of the water. The person is holding the pH meter with their right hand and appears to be taking multiple measurements of the pH level. The rock is dark in color and appears to be smooth. The water in the container is clear, and the pH meter is yellow with black text. The person's actions are deliberate and careful as they measure the pH level of the water.