Across
- 2. =a supercontinent comprising all the continental crust of the earth
- 4. waves = are waves of energy that travel through the Earth's layers
- 5. =the rigid outer part of the earth, consisting of the crust and upper mantle.
- 6. tectonics =a theory explaining the structure of the earth's crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates that move slowly over the underlying mantle.
- 8. =the transfer of heat energy
- 9. waves of energy that travel through the Earth's layers
- 10. =the continuous physical force exerted on or against an object by something in contact
- 14. boundary = is known as a destructive plate boundary, wich is an actively deforming region where two tectonic plates or fragments of lithosphere move toward one another and collide.
- 15. =the crust is the outermost solid shell
- 16. =the energy transmitted in this way, as heat, light
- 17. boundary = is a linear feature that exists between two tectonic plates that are moving away from each other
Down
- 1. = a layer in the interior of Earth or another planet
- 3. = below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.
- 7. spreading = a process that occurs at mid-ocean ridges
- 11. = the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity
- 12. core = one of the Earth's liquid layer
- 13. core =is a primarily solid ball