Plate Tectonics Crossword

Two or more tectonic plates or fragments are near the end of their life cycle.
Plates slide sideways past each other.
A theory explaining the structure of the earth's crust.
The sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
The zone below the lithosphere.
Places where new seafloor is being created.
The outer part of the Earth's crust.
The process by which earths crust breaks apart.
The process by which new organic lithosphere (sea floor) forms as magma rises to Earths surface and solidifies.
Huge trenches on Earth's seafloor.
What pushes the rest of a plate away from the mid-ocean ridge?
Credited with the theory of Continental Drift
Credited with the theory of Plate Tectonics.
Large pieces of earths crust that move due to convection currents.
A chain of volcanic mountains formed at an ocean-continental convergent boundary.
A chain of volcanic islands formed at an ocean-ocean convergent boundary.
Area where magma from the mantle continually breaks through the crust.
Depression formed at a subduction zone.
The hypothesis that the continents slowly move across Earth's surface.
Large supercontinent that existed 250 million years ago.