Plate Tectonics Crossword

2. an undersea mountain chain where new ocean floor is produced; a divergent plate boundary under the ocean.
3. a deep valley along the ocean floor beneath which oceanic crust slowly sinks toward the mantle
7. a break in Earth’s crust along which rocks move.
8. a plate boundary where two plates move away from each other.
10. the hypothesis that the continents slowly move across Earth’s surface.
12. the theory that pieces of earth’s lithosphere are constantly moving, driven by convection currents in the mantle.
13. the preserved remains or traces of an organism that lived in the past.
14. boundary- a plate boundary where two plates move past each other in opposite directions.

1. the process by which molten material adds new oceanic crust to the ocean floor
4. a plate boundary where two plates move towards each other.
5. a section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of continental and oceanic crust.
6. the process by which oceanic crust sinks beneath a deep ocean trench and back into the mantle at a convergent boundary.
9. the name of the single landmass that began to break apart 200 million years ago and gave rise to today’s continents.
11. a deep valley that forms where two plates move apart.