Across
- 2. largest layer of the earth, mostly solid, “stretches like silly putty, flows like maple syrup”
- 4. deepest point on the ocean floor in the Pacific Ocean, formed at a subduction zone
- 6. an area in the mantle that is hotter than the surrounding mantle
- 9. a German scientist who came up with the Continental drift Hypothesis
- 10. the rigid outer part of the earth which consists of the crust and upper part of the mantle, cold and brittle, broken into plates
- 12. the circular movement of energy in which heat rises and cold sinks
- 14. a plate boundary which occurs where 2 plates are moving away from each other ( dividing)
- 16. large underwater mountain chain formed at a divergent plate boundary (spreading center)
- 17. a plate boundary in which 2 plates are sliding horizontally past each other
- 18. a plate boundary which occurs where 2 plates are moving towards each other
Down
- 1. melting which occurs due to a reduction in pressure
- 3. the upper layer of the mantle on which the lithosphere moves
- 5. a supercontinent which existed at the end of the paleozoic when all of the continents were together as 1 land mass
- 7. the only liquid layer of the Earth composed of molten iron and nickel
- 8. a process which occurs at the mid ocean ridge where magma comes to the surface and new ocean crust is formed
- 11. long, narrow depressions on the seafloor caused at subduction zones; deepest parts of the ocean
- 13. oceanic lithosphere is pushed under another plate at a convergent boundary and melts, creating the “fuel” for a volcano
- 15. the center of the Earth composed of solid iron and nickel