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UPC A2 Video Clip 1: Video group discusses movement of the tissue paper
After the group agrees that the temperature and volume of the flask remains constant, and that the pressure increased as air was added, they discuss the making sense question: How can you account for the movement of the tissue paper in the last step of the procedure? (They had seen it move away from the valve.) What does this tell you about the direction of the flow of air?
UPC A2 Video Clip 3: Video group discusses Summarizing Question #2
This is the latter part of the video group's discussion about SQ #2: In the simulator exploration, how can it be that there is a greater pressure measured when there were more particles, even though speed of the particles did not change? (Think about defining pressure before answering the question.)
UPC A2 Video Clip 1: Video group discusses movement of the tissue paper