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4.1 Plate Tectonics

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Plate tectonics is the theory that Earth's crust is broken into large plates that float on the semi-molten mantle and move slowly over time (a few cm per year). Their interactions at boundaries shape mountains, oceans, earthquakes, and volcanoes.

In this unit

9 lessons

  1. 4.1Plate TectonicsThis lesson
  2. 4.2Soil Formation and ErosionPreview lesson
  3. 4.3Soil Composition and PropertiesPreview lesson
  4. 4.4Earth’s AtmospherePreview lesson
  5. 4.5Global Wind PatternsPreview lesson
  6. 4.6WatershedsPreview lesson
  7. 4.7Solar Radiation and Earth’s SeasonsPreview lesson
  8. 4.8Earth’s Geography and ClimatePreview lesson
  9. 4.9El Niño and La NiñaPreview lesson

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