Continental drift and plate tectonics (0-7:03)
A theory explains how continents have moved to their current and future positions. Passive margins are different than convergent boundaries.

Building Massachusetts (7:03-11:44)
Boston is seated on a former microcontinent, and was almost pulled away on Africa.

Dating methods for rocks (11:44-14:51)
Older vs. younger and more.

Paleomagnetism (14:51-18:39)
Iron minerals encode the location of the North Pole when they cool into rocks.

Radiometric dating (18:39-22:25)
Radioactive minerals can be used to put dates on rocks, and used in conjunction with relative and paleomag dates.

Getting a feel for long time frames (22:25-30:14)
Try to visualize deep time by imagining how you could send a message to people 10,000 years in the future.

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