Science lesson 4,5,6
Across
- 2. occurs when rock layers bend under stress
- 4. lithosphere is divided into pieces.
- 7. is a place within earth along a fault at which the first motion of the earthquake occures
- 9. are ground movement the occur then blocks of rock in earth move suddenly and release energy
- 10. a boundary at which two plates move past each other horizontally.
- 12. tectonic plates or fragments of the lithosphere move toward one another and collide.
- 13. is stress that squeezes or pushes rock together
- 14. kind of movement of material due to differences in density.
- 16. is a hypothetical supercontinent that included all current land masses.
- 17. the crack that forms when large blocks of rock break and move past each other
- 18. is stress that stretches or pulls rock apart
Down
- 1. is the process by which rock become deformed and changed shape due to stress
- 3. describes large-scale movement of earth's lithosphere.
- 5. is stress that pushes rocks in parallel but opposite directions
- 6. two tectonic plates that are moving away from each other.
- 8. directly above the foucs on earth serface
- 11. to explain the age and magnetic patterns of sea-floor rocks.
- 15. rebound the return of rock to its original shape after elastic deformation