Across
- 3. an undersea mountain chain where new ocean floor is created
- 6. type of boundary where two plates move away from each other
- 7. surface feature that forms along a convergent boundary between two continental crusts
- 9. surface that can happen at any type of plate boundary due to the tectonic plates shifting
- 11. surface that forms when one plate subducts under another
- 13. a trace of an ancient organism that has been preserved in rock
- 16. process that powers the movements of earth's tectonic plates
- 17. type of boundary where two plates slide past each other
- 18. the process where the denser plate goes under another plate
Down
- 1. the layer of hot solid material between earth's crust and core
- 2. supercontinent that existed over 225 million years ago
- 4. a dense spear of solid iron and nickel at the center of the earth
- 5. type of boundary where two plates move towards each other
- 8. a layer of molten lava and nickel that surrounds the inner core of earth
- 10. a rigid layer made up of the uppermost part of the mantle and crust
- 12. term used to describe the location where two tectonic plates meet
- 14. scientist who proposed the theory of continental drift
- 15. the layer of rock that forms earth's outer surface