Across
- 2. Spreading - Theory that the ocean floor is spreading at mid-ocean ridges
- 4. - Plates are sections of the Earth's ___
- 5. - Supercontinent that existed during the late Paleozoic era
- 7. - Layer of the Earth that is broken into tectonic plates
- 8. - Scientist who proposed the theory of continental drift
Down
- 1. Drift Theory - proposing that continents have moved over geological time
- 3. - Earth’s semi-fluid layer beneath the lithosphere
- 6. Ocean Ridge - Underwater mountain range formed by plate tectonics