Across
- 4. A type of plate movement that occurs when one plate goes under another plate
- 6. principle stating that earth's lithosphere floats on a layer called the asthenosphere
- 10. ridgid layer of earth about 100km thick
- 11. waves some are stoped or bend when they change the material that they are traveling too
- 12. mountain form when forces inside earth push up the crust
- 13. sudden release of energy within earth's crust that causes wave movement
- 14. middle sphere, lower part of the mantle
- 17. earth's outermost layer that is thinnest than the other layers
Down
- 1. mass of an object divided by its volume
- 2. hot, molten lavathat escapes through an opening in earth's surface
- 3. mountain made of huge tilted blocks of rocks
- 5. A large Fracture in rock along which movement
- 6. It is under tremendus pressure and is made of solid iron and nickel
- 7. is a plastic-like layer
- 8. mountain formed by the folding of rock layers caused by compression forces
- 9. it makes a magnetic field as it rotates
- 14. it has three parts called lithosphere,asthenosphere,mesosphere
- 15. tectonics A theory explaning the structure of the earth's crust
- 16. is a process which products of weathering are moved to another location