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If the seafloor is spreading, does that mean that the Earth is getting larger?
Mid-Ocean Ridges
older
oceanic crust
an oceanic trench
continental crust
both sides
No
Seafloor Spreading
Molten rock flows up through a crack in the Earth’s crust and hardens into solid strips of new rock on _________ of the crack.
Mid-Ocean Ridges
older
oceanic crust
an oceanic trench
continental crust
both sides
No
Seafloor Spreading
At _______________________, the more dense oceanic crust will sink under the edge of a continent or a younger, less dense oceanic crust.
Mid-Ocean Ridges
older
oceanic crust
an oceanic trench
continental crust
both sides
No
Seafloor Spreading
If oceanic crust meets___________________, it can produce a chain of volcanic islands.
Mid-Ocean Ridges
older
oceanic crust
an oceanic trench
continental crust
both sides
No
Seafloor Spreading
The further the distance from the mid-ocean ridge, the _________________ the rock is!
Mid-Ocean Ridges
older
oceanic crust
an oceanic trench
continental crust
both sides
No
Seafloor Spreading
The process by which molten material adds new oceanic crust to the ocean floor is called
Mid-Ocean Ridges
older
oceanic crust
an oceanic trench
continental crust
both sides
No
Seafloor Spreading
If oceanic crust meets ____________________________, a chain of volcanoes can form.
Mid-Ocean Ridges
older
oceanic crust
an oceanic trench
continental crust
both sides
No
Seafloor Spreading
Chains of undersea mountains are called
Mid-Ocean Ridges
older
oceanic crust
an oceanic trench
continental crust
both sides
No
Seafloor Spreading
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