Plate Tectonics

2. when tectonic plates slide past each other
3. crack in the Earths crust where 2 tectonic plates grind past each other
5. outermost layer of earth
7. seismic body waves transmitted by alternating series of sideways movements in a solid.
10. Boundary - when 2 plates slide past each other horizontally
13. shaking of the earth's surface caused by the movement of tectonic plates.
15. Name given to the supercontinent that was one landmass
16. the process where new oceanic crust forms at mid-ocean ridges as tectonic plates pull apart
17. Zone - convergent plate boundary where continents are colliding together creating mountains
22. When one plate slides under another if there is land the ocean plate would subduct
23. valley that forms at the edge of a continent when a plate sinks
24. the point of origin of an earthquake
25. the distance from the center of a circle to any point on its circumference.
26. The theory that says how continents separated after time.
27. seismic body waves transmitted by alternating pulses of compression and and expansion.
28. An area where oceanic crust and continental crust are colliding

1. flowing layer of solid and liquid rock formed by heat and pressure
4. when two plates move apart allowing magma to rise from the earth’s interior.
6. theory that explains continental drift
8. an area where two or more plates meet
9. huge ocean wave caused by a shift in the ocean floor
11. layer between the core and crust of the earth
12. point on the earth's surface that is vertically above the focus of an earthquake
14. theory that explains continental drift
18. solid outer part of Earth including the crust and upper mantle
19. part of a grid used for describing positions on the Earth’s surface
20. where two land masses are pushed together causing them to collide and fold, creating a mountain range
21. melted rock under the surface