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UPC L2 Video Clip 1: Group 1 discusses PC-10 making sense questions

UPC L2 Video Clip 2: Class discusses what is between particles

UPC L2 Video Clip 3: Group 1 discusses CQ 2-2

UPC L2 Video Clip 4: Class discusses CQ 2-3

UPC L2 Video Clip 5: Group 1 discusses CQ 2-4

UPC L2 Video Clip 6: Class discusses CQ 2-4