Across
- 2. preserved remains or traces of ancient organisms
- 6. plate boundary where plates move apart
- 7. plate boundary where plates slide past each other
- 10. theory explaining how tectonic plates move and shape Earth
- 12. extremely large volcano capable of massive eruptions
- 13. process where new ocean crust forms at mid ocean ridges
- 15. area around the Pacific Ocean with many volcanoes and earthquakes
- 16. landform created when continents collide
- 17. underwater mountain chain formed at divergent boundaries
Down
- 1. theory that continents slowly move over Earth’s surface
- 3. large low area of Earth’s crust that holds ocean water
- 4. process where one plate sinks beneath another
- 5. plate boundary where plates collide
- 8. large moving piece of Earth’s crust
- 9. area where magma rises through the mantle not at a plate boundary
- 11. principle stating older rock layers are below younger layers
- 14. chain of volcanic islands formed as a tectonic plate moves over a hot spot
