Across
- 4. Center made of iron and nickel
- 5. A split between two bodies that were once whole
- 7. Sub-marine mountain ridges where the new seafloor is created
- 11. The upper layer of the Earth's interior, including the crust and upper part of the mantle
- 12. The idea that all landmass was one piece and shifted away over time.
- 14. Layer outside the center
- 15. Large moving segments of the lithosphere
- 16. Uppermost section of Earth
- 17. The boundaries between plates.
- 18. Type of boundary that moves away
- 19. A form of stress produced by the action of equal and opposite forces, the effect of which is to reduce the length of a material.
- 20. Type of boundary that comes together
Down
- 1. When a plate dive under another
- 2. an area of rock that has been bent over stress
- 3. A depression in the Earth's crust
- 6. Where two plates fracture from stress
- 7. The layer between Earth's thinnest layer and its center
- 8. A deep depression inside the ocean floor
- 9. The deformation of the lithosphere
- 10. A long trough bounded by two or more faults
- 13. A form of stress that acts to stretch a material