What is plate tectonics?
Plate tectonics

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Science
•
7th Grade
•
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 the movement of tectonic plates?
Back
Convection currents in the Asthenosphere, which are caused by the heat from the Earth's core.
3.
FLASHCARD QUESTION
Front
What is a convergent boundary?
Back
A tectonic plate boundary where two plates move toward each other, often causing mountains, earthquakes, and volcanic activity.
4.
FLASHCARD QUESTION
Front
What is a divergent boundary?
Back
A tectonic plate boundary where two plates move apart from each other, leading to the formation of new crust, such as mid-ocean ridges.
5.
FLASHCARD QUESTION
Front
What is a transform boundary?
Back
A tectonic plate boundary where two plates slide past each other horizontally, often causing earthquakes.
6.
FLASHCARD QUESTION
Front
What is subduction?
Back
The process where one tectonic plate moves under another plate and sinks into the mantle, often leading to volcanic activity.
7.
FLASHCARD QUESTION
Front
What are convection currents?
Back
The circular movement of fluids (like magma) caused by the heat from the Earth's core, driving the movement of tectonic plates.
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