What is plate tectonics?
Plate Tectonics

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Science
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9th - 12th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
The theory that explains the structure and movement of the Earth's lithosphere, which is divided into tectonic plates that float on the semi-fluid asthenosphere.
2.
FLASHCARD QUESTION
Front
What causes sea-floor spreading?
Back
The movement of molten material from the mantle that erupts along mid-ocean ridges, pushing older crust away from the ridge.
3.
FLASHCARD QUESTION
Front
What is the process of subduction?
Back
The process where one tectonic plate moves under another and sinks into the mantle.
4.
FLASHCARD QUESTION
Front
What are the three types of plate boundaries?
Back
Divergent, convergent, and transform boundaries.
5.
FLASHCARD QUESTION
Front
What happens at divergent boundaries?
Back
Tectonic plates move apart, leading to the formation of new crust as magma rises to the surface.
6.
FLASHCARD QUESTION
Front
What is convection in the context of plate tectonics?
Back
The movement of molten rock in the mantle that causes tectonic plates to move due to heat from the Earth's core.
7.
FLASHCARD QUESTION
Front
What is the Earth's crust?
Back
The outermost layer of the Earth, which is solid and relatively thin compared to the other layers.
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