Part 1 -- Geological History (ppt)
Part 2 -- Inhabitants of the Land (ppt)
Part 3 -- A New Family (ppt)
Part 4 -- Changes (ppt)
Part 5 -- Architecture (ppt)
Part 6 -- More Changes (ppt)
Part 7 -- Water (ppt)
Part 8 -- Energy (ppt)
Part 9 -- The Past and the Future (ppt)