Across
- 2. The continent that Wegener suggested was once connected to South America due to matching geological features.
- 4. The process by which continents move over geological time.
- 7. The process that occurs when tectonic plates separate, forming a gap in the sea.
- 9. The theory of Continental Drift is a fundamental concept in the field of ______________.
- 12. The layer of Earth beneath the lithosphere that behaves in a plastic, ductile manner over long periods of time.
- 14. The boundary where two tectonic plates are moving away from each other.
- 16. The largest tectonic plate on Earth that includes much of the Pacific Ocean.
- 18. The name of the scientist who developed the theory of Continental drift.
- 19. These features found on opposite sides of the Atlantic Ocean were key evidence for Wegener's theory.
- 20. The scientist who independently proposed a similar theory of continental motion, supporting Wegener's ideas.
Down
- 1. The mountain range that runs along the mid-Atlantic Ridge, providing evidence for plate movement.
- 3. The name of the fossil plant that was crucial in supporting Wegener's theory.
- 5. The supercontinent that Wegener believed once existed, which he called "_____________."
- 6. The layer of Earth's structure made of hot dense silicate rocks.
- 8. The process by which Earth's plates were broken apart and drifted to their current positions.
- 10. The process by which tectonic plates collide and one is forced beneath the other.
- 11. The type of crust formed when plates push into each other.
- 13. Wegener's idea that continents were once connected but drifted apart was initially met with ______________ from the scientific community.
- 15. The ocean that separates Europe and North America.
- 17. The mechanism believed to drive plate tectonics, caused by heat from Earth's interior.