Across
- 3. Thin, fractured layer of rock on Earth's surface.
- 5. Largest plate of ocean crust.
- 6. One plate is shoved under another at a convergent boundary.
- 9. Our "home" plate (where the U.S. sits).
- 12. Boundary where plates are sliding past each other.
- 13. Super-continent that existed 250 million years ago.
- 14. German scientist who developed Continental Drift theory.
Down
- 1. Underwater mountain range formed at a divergent boundary
- 2. Deep ocean valley formed by subduction.
- 4. Boundary where plates are pushing together.
- 7. Boundary where plates are pulling apart
- 8. Thick layer of molten rock beneath the crust.
- 10. Earth's center, made of iron.
- 11. American geologist who discovered "sea floor spreading".