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UPC A7 Video Clip 2: Instructor helps students work through SQ #3 (b)
The group is very confused about drawing the nano energy diagram for melting beeswax. Just before this segment, they had thought that the kinetic energy of the beeswax particles is increasing and the potential energy is decreasing. The instructor has come over and tries to help them by referring back to what they had previously learned and observed.
UPC A7 Video Clip 3: A group's white board presentation of SQ #3 (a)
A group presents its answer to part (a) of SQ #3, drawing the nano energy diagram for the situation where beeswax is heating up, but not yet at its melting point. The group talks about the beeswax heating up, but not yet at its boiling point. [The energy diagram would be the same.]