wunder beta🌋 Plate Tectonics
How Earth's cracked shell drives earthquakes, volcanoes, and mountains.
What you’ll learn
- Explain the theory of plate tectonics and the evidence that established it.Earth's lithosphere is broken into moving plates. Wegener proposed continental drift, and seafloor spreading with magnetic stripes later supplied the mechanism, driven by mantle convection, slab pull, and ridge push.
- Identify the three types of plate boundaries and the landforms they create.Divergent boundaries pull apart and build new crust, convergent boundaries collide to raise mountains or subduct, and transform boundaries slide past each other, as at the San Andreas Fault.
- Connect plate motion to earthquakes, volcanoes, and Earth's major landforms.Locked faults release stress as earthquakes, subduction and rifting create volcanoes, and colliding or diving plates build mountains and trenches, revealing Earth as a constantly changing planet.
Questions this course answers
What is the lithosphere broken into?
Earth's rigid outer shell, the lithosphere, is broken into large moving slabs called tectonic plates.
Who proposed the idea of continental drift?
Alfred Wegener proposed continental drift, noting matching coastlines, fossils, and rock formations across continents.
Where is new oceanic crust created?
New oceanic crust forms at mid-ocean ridges through seafloor spreading, and it grows older with distance from the ridge.
What happens at a divergent boundary?
At divergent boundaries plates pull apart, and magma rises to form new crust, as at the Mid-Atlantic Ridge.
The Himalayas formed from the collision of which two plates?
The Himalayas rose from the convergent collision of the Indian and Eurasian continental plates.
The San Andreas Fault is an example of what boundary type?
The San Andreas Fault is a transform boundary where the Pacific and North American plates slide horizontally past each other.
Grounded in trusted sources
- U.S. Geological Survey, This Dynamic Earth: Understanding Plate Motions, https://pubs.usgs.gov/gip/dynamic/understanding.html
- NOAA Ocean Exploration, What are the different types of plate tectonic boundaries?, https://oceanexplorer.noaa.gov/ocean-fact/plate-boundaries/
- California Academy of Sciences, Plate Boundaries: Divergent, Convergent, and Transform, https://www.calacademy.org/explore-science/plate-boundaries-divergent-convergent-and-transform
- W. Jacquelyne Kious and Robert I. Tilling, This Dynamic Earth: The Story of Plate Tectonics, USGS (1996)
Every Wunder lesson is built from real, reputable sources — never invented.
Related Science courses
Wunder is a personalized learn-anything platform — tell it any topic and it builds a beautiful, fact-checked course in minutes, with narration, a knowledge check, and a college-style University track.
Browse more Science courses · All topics · Home
© 2026 Wunder Learning LLC · Terms & Privacy