Tectonic Plates Crossword

The hypothesis that the continents slowly moved across Earth's surface.
A supercontinent form about 300 millions years ago.
The preserved remains or traces of an organism that lived in the past.
An undersea mountain chain where new ocean floor is produced; a divergent plate boundary under the ocean.
The process in which molten material adds new oceanic crust to the ocean floor.
A deep valley along the ocean floor beneath which oceanic crust slowly sinks toward the mantle.
The process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle.
The theory that pieces of Earth's lithosphere are in constant motion, driven by convection current in the mantle.
A break in Earth's crust along which rocks move.
A deep valley that form when two plates move apart.
A plate boundary where two plates move toward each other.
A plate boundary where two plates move away from each other.
A plate boundary where two plates move past each other in opposite direction.