chapter 7
Across
- 8. a sphere of hot solid metal
- 9. occurs when two plates slide past each other
- 12. juan de fuco plate philippine plate caribbean plate scotia plate arabian plate and cocos plate
- 13. thick plates made up of andesite and granite that form the continents and are less dense than oceanic plates
- 14. topmost layer of the Earth made up of the crust and the solid portion of the upper mantle
- 15. a layer of solid rock that surrounds the Earths surface
- 16. the thick layer that surrounds the core and is made up of hot but mostly solid material
Down
- 1. Euraisan plate north american plate south america plate pacific plate african plate austrillian plate antarctic plate and Indian plate
- 2. scientific theory explaining how the plates move on the Earth
- 3. liquid metal that surrounds the inner core
- 4. the super continent
- 5. occurs when two plates move away from each other
- 6. caused by the very hot material at the deepest part of the mantle rising then cooling sinking again and then heating rising and repeating the cycle over and over
- 7. where the plates of the lithosphere float or slide a top a thin semi solid layer in the uppermantle
- 10. occurs when two plates move towards each other and collide
- 11. Earths surface is broken into large pieces that move over the asthenosphere