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.
