Editing Plate Tectonics (section)

== <span style="color: #FFFFFF;">Remembering</span> ==
* '''Plate Tectonics''' — The theory that Earth's outer shell is divided into several plates that glide over the mantle.
* '''Lithosphere''' — The rigid outer part of the earth, consisting of the crust and upper mantle.
* '''Asthenosphere''' — The highly viscous, mechanically weak, and ductile region of the upper mantle on which the plates move.
* '''Pangea''' — The "Supercontinent" that existed 300 million years ago when all current continents were joined.
* '''Divergent Boundary''' — Where two plates are moving apart (e.g., The Mid-Atlantic Ridge).
* '''Convergent Boundary''' — Where two plates are crashing together (e.g., The Himalayas).
* '''Transform Boundary''' — Where two plates are sliding past each other (e.g., The San Andreas Fault).
* '''Subduction''' — The process by which one plate is forced under another and melts in the mantle.
* '''Magma''' — Molten rock beneath the Earth's surface.
* '''Lava''' — Molten rock that has reached the Earth's surface.
* '''Mantle Convection''' — The "Engine" of plate tectonics; the movement of heat within the Earth that pushes the plates.
* '''Mid-Ocean Ridge''' — An underwater mountain range where new ocean floor is created by divergent plates.
* '''Oceanic Trench''' — A deep, narrow depression in the ocean floor caused by subduction.
* '''Seafloor Spreading''' — The process by which new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge.
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