Geology 101 with Willsey, Episode #2: Intro to Plate Tectonics
26:05
Geology 101 with Willsey, Episode #3: Divergent Plate Boundaries
21:25
Kilauea Erupts An Early Christmas Gift: Geologist Analysis
43:36
How Geologists Discovered and Mapped a Great Seaway
32:19
Geology 101 with Willsey, Episode #1: Intro to Earth
28:20
Rock Identification with Willsey: Intro to Igneous Rocks!
29:24
Geology 101 with Willsey, Episode #4: Convergent Plate Boundaries
19:17
Rock Identification with Willsey: Nonfoliated Rocks - Quartzite and Marble
19:54