plate tectonics

5. The core mantle boundary of Earth is between the earth’s mantle and outer core
9. boundary Is something that is between two combined tectonic plates
12. the area where oceanic crust sinks beneath continental crust
13. the process by which molten material adds new crust to the ocean floor
15. deep valley along the ocean floor beneath which oceanic crust slowly sinks toward the mantle at a convergent boundary
16. a lowland region that forms where Earth's tectonic plates move apart, or rift.
17. a plate boundary where two plates move past each other in opposite directions
18. the process by which the ocean floor sinks beneath a deep-ocean trench and back into the mantle
19. Alfred Wegner's hypothesis that the continents were once joined together in a single landmass and have slowly moved apar
20. a plate boundary where two plates move away from each other

1. a section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of continental and oceanic crust
2. the supercontinent that existed millions of years ago
3. created by two pieces of continental crust converging or coming together
4. an undersea mountain chain where new ocean floor is produced at a divergent boundary
6. boundaries occur when two continental plates move towards each other.
7. a geological process in which the oceanic lithosphere and some continental
8. any trace of an ancient organism that has been preserved in rock
10. he result of differential heating. Lighter warm material rises while heavier cool material sinks.
11. a type of fault in which two tectonic plates slide past one another
14. the theory that states that pieces of Earth's lithosphere are in constant slow motion