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UPC L7 Video Clip 2: Group 1 discusses Temp vs Time graph
Group 1 discusses making sense question beneath Temp vs Time graph on PC-55. They are labeling the graph where the system is in the liquid state or solid state or a mixture of liquid and solid (during melting). They also distinguish between warming and heating.
UPC L7 Video Clip 6: Class discusses first row of Table
A student from the class answers and explains her answer to the first row of the Table on PC-58—that the higher the density the higher the attractive forces. She first justifies it macroscopically and then in terms of particles. [Unfortunately the student who is speaking cannot be seen very well.]
UPC L7 Video Clip 1: Group 2 discusses observations from UPC L7 Movie 1