Continental Drift vs Plate Tectonics
Across
- 4. Vibrations in the ground caused by Earths crust moving
- 7. A lowland region that forms where Earth's tectonic plates move apart, or rift
- 8. Evidence in the changing climates during the past
- 12. The liquid layer of the Earth's core that lies beneath the mantle and surrounds the inner core
- 17. Earth's lithosphere is broken up into how many major plates
- 18. When one plate gets pushed under another and where volcanoes form
- 19. The place where two plates move apart or diverge
- 20. The soft layer of the mantle on which pieces of the lithosphere move
- 21. The boundary between two tectonic plates that are sliding past each other horizontally
Down
- 1. The thin, outermost layer of the Earth
- 2. Molten rock in the Earth's crust
- 3. Evidence in the layers of rocks across continents
- 5. How many main pieces of evidence did Wegener find to support his theory
- 6. The cause of seafloor spreading
- 9. The theory that continents can drift apart form on another and have in the past
- 10. How many people believed Wegener's theory when he was alive?
- 11. Was the first person to propose the theory of continental drift
- 13. The movement or study of the movement of Earth's crust
- 14. The outermost, rigid layer of the Earth that consists of the crust and the rigid upper part of the mantle
- 15. The solid, dense center of the Earth
- 16. Wegener's name for the super continent that existed over 250 million years ago