Astronomy & Earth · Earth
Earth's Structure & Plate Tectonics
Earth's layers and how seismology revealed them, Wegener's continental drift, seafloor spreading and the 1960s plate revolution, the three boundary types, and how they make earthquakes, volcanoes and mountains.
Step 1 of 5 · Overview30 min read ·
Key idea
Prereqs: none. Next: Climate science; energy. Sources: USGS *This Dynamic Earth*; Naomi Oreskes, *Plate Tectonics: An Insider's History* (2001); Crash Course Geography #19.Next: 1. Layers