What is sea floor spreading?
Sea Floor Spreading

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•
Science
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The process by which new oceanic crust is formed at mid-ocean ridges and gradually moves away from the ridge.
2.
FLASHCARD QUESTION
Front
What type of boundary is associated with sea floor spreading?
Back
Divergent boundary.
3.
FLASHCARD QUESTION
Front
Where does sea floor spreading primarily occur?
Back
At mid-ocean ridges.
4.
FLASHCARD QUESTION
Front
What geological feature is formed by sea floor spreading?
Back
Mid-ocean ridges, which are undersea mountain chains.
5.
FLASHCARD QUESTION
Front
What causes sea floor spreading?
Back
Magma below the Earth's crust is forced up toward the surface as tectonic plates move apart.
6.
FLASHCARD QUESTION
Front
What is a divergent boundary?
Back
A tectonic plate boundary where two plates move away from each other, allowing magma to rise and create new crust.
7.
FLASHCARD QUESTION
Front
What is the significance of mid-ocean ridges?
Back
They are the sites of sea floor spreading and the formation of new oceanic crust.
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