pt. 1. Lecture 1. Geology's impact on history -- Lecture 2. Geologic history : dating the Earth -- Lecture 3. Earth's structure : journey to the Earth's center -- Lecture 4. Earth's heat : conduction and convection -- Lecture 5. The basics of plate tectonics -- Lecture 6. Making matter : the Big Bang and big bangs -- Lecture 7. Creating Earth : recipe for a planet -- Lecture 8. The rock cycle : matter in motion -- Lecture 9. Minerals : the building blocks of rocks -- Lecture 10. Magma : the building mush of rocks -- Lecture 11. Crystallization : the rock cycle starts -- Lecture 12. Volcanoes : lava and ash.
pt. 2. Lecture 13. Folding : bending blocks, flowing rocks -- Lecture 14. Earthquakes : examining Earth's faults -- Lecture 15. Plate techtonics : why continents move -- Lecture 16. The Ocean seafloor : unseen lands -- Lecture 17. Rifts and ridges : the creation of plates -- Lecture 18. Transform faults : tears of a crust -- Lecture 19. Subduction zones : recycling oceans -- Lecture 20. Continents collide and mountains are made -- Lecture 21. Intraplate volcanoes : finding the hot spots -- Lecture 22. Destruction from volcanoes and earthquakes -- Lecture 23. Predicting natural disasters -- Lecture 24. Anatomy of a volcano : Mount St. Helens.
pt. 3. Lecture 25. Anatomy of an earthquake : Sumatra -- Lecture 26. History of plate motions : where and why -- Lecture 27. Assembling North America -- Lecture 28. The Sun-driven hydrologic cycle -- Lecture 29. Water on Earth : the Blue Planet -- Lecture 30. Earth's atmosphere : air and weather -- Lecture 31. Erosion : weathering and land removal -- Lecture 32. Jungles and deserts : feast or famine -- Lecture 33. Mass wasting : rocks fall downhill -- Lecture 34. Streams : shaping the land -- Lecture 35. Groundwater : the invisible reservoir -- Lecture 36. Shorelines : factories of sedimentary rocks.
pt. 4. Lecture 37. Glaciers : the power of ice -- Lecture 38. Planetary wobbles and the last Ice Age -- Lecture 39. Long-term climate change -- Lecture 40. Short-term climate change -- Lecture 41. Climate change and human history -- Lecture 42. Plate tectonics and natural resources -- Lecture 43. Nonrenewable energy sources -- Lecture 44. Renewable energy sources -- Lecture 45. Humans : dominating geologic change -- Lecture 46. History of life : complexity and diversity -- Lecture 47. The Solar System : Earth's neighborhood -- Lecture 48. The lonely planet : Fermi's paradox.
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