Dynamic Earth Vocab by Marco Noujaim

2. The first scientist that made a mapping of the ocean floor scientifically.
5. The supercontinent that made the understanding of plate tectonics more clear.
6. An undersea mountain chain where new ocean floor is produced.
9. Vibrations that travel through Earth carrying the energy released during an earthquake.
10. a lowland region that forms where Earth’s tectonic plates move apart.
11. A plate boundary where two plates move toward each other.
15. A dense sphere of solid iron and nickel at the center of the Earth.
18. A Molten mixture of rock-forming substances, gases, and water from the mantle.
19. A sudden shaken of the ground caused by seismic waves passing through Earth's crust.
20. A layer of molten iron and nickel that surrounds the inner core.
22. The sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
23. The layer of that forms Earth's outer layer.
24. The process by which molten material adds new oceanic crust to the ocean floor.
25. The shaking that results from movement of rock beneath the Earth's surface.

1. the solid, outer part of Earth, including the brittle upper portion of the mantle and the crust.
3. The process of by which oceanic crust sinks beneath a deep ocean trench and back into the mantle.
4. A chain of islands formed by subduction of one plate under another.
7. A plate boundary where two plates move away from each other.
8. A plate boundary where two plates move past each other in opposite directions.
12. An undersea valley that represents the deepest parts of the ocean.
13. thought of continental drift.
14. The layer of hot, solid material between Earth's crust and core.
16. what oceanic crust is made of.
17. The heat transfer drives plate motion due to density differences.
21. the theory that all continents were once one big supercontinent that eventually drifted apart.