techtonic plates

6. valley- another name for the deep crack that splits fault-block mid-ocean ridge mountains
7. the uppermost solid part of Earth's crust
8. currents- circulatory patterns of heat in the magma believed to be the riving force behind plate movement
9. a giant prehistoric landmass where all seven modern continents fused together
10. a type of fault where the crust moves sideways past each other
13. the branch of geology that deals with the movement that shapes the earth's crust
14. ocean ridges- ocean bottom mountain ranges split down the middle by a deep crack
15. a type of plate boundary where the plates slowly collide into each other

1. a german scientist who was the first person to build a scientific case to support the Theory of Continental Drift
2. the process in which crust pushes downward into the mantle at a faultline
3. the preserved remains of ancient, once-living organisms
4. a type of plate boundary where the plates slowly move apart from each other
5. v-shaped valleys that are the deepest parts of the oceans where subduction occurs
11. a multi-word term used to describe the movement of oceanic crust as a divergent boundary.
12. a large segment of earth crust that slowly moves