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Unit 4 - PT - Part 3 duration 15 minutes 11 seconds Unit 4 - PT - Part 3 Unit 4 - PT - Part 3	Unit 4 - PT - Part 3 captionasr +20 More From Sharonna Greenberg 5,255 plays 2
Unit 4 - PT - Part 2 duration 15 minutes 57 seconds Unit 4 - PT - Part 2 Unit 4 - PT - Part 2	Unit 4 - PT - Part 2 captionasr +20 More From Sharonna Greenberg 5,281 plays 1
Periodic Trends 2 duration 35 minutes 51 seconds Periodic Trends 2 Periodic Trends 2	Periodic Trends 2 captionasr +20 More From Linda Davis 2,440 plays 0
Periodic Trends 1 duration 45 minutes 14 seconds Periodic Trends 1 Periodic Trends 1	Periodic Trends 1 captionasr +20 More From Linda Davis 2,886 plays 0

Unit 4 - PT - Part 3