Science Vocab set 1

4. massive, irregularly shaped slabs of solid rock, composed of both continental and oceanic lithosphere
6. A lowland region that forms where Earth's tectonic plates move apart
7. natural processes that contribute to the continuous change in the Earth's surface topography
11. A geological process where new oceanic crust is formed at mid-ocean ridges
13. a tectonic belt of volcanoes and earthquakes around the Pacific Ocean
15. The view that the continents and oceans have always been generally as they are today
17. The solid, outer part of Earth
18. consists of a solid inner core, a liquid outer core, a solid mantle, and a solid crust, with the outer layer being the lithosphere
19. A long, narrow depressions on the seafloor that form at the boundary of tectonic plates where one plate is pushed, or subducts, beneath another

1. When two tectonic plates move apart
2. Those that build up or create new landforms
3. When two plates come together
5. a supercontinent that existed during the late Paleozoic and early Mesozoic eras
8. the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
9. He is best known for proposing the theory of continental drift, suggesting that Earth's continents were once joined in a single supercontinent called Pangaea
10. a mechanically weak, ductile region of the upper mantle beneath the lithosphere
12. This theory describes one of the earliest ways geologists thought continents moved over time
14. a type of plate boundary where two tectonic plates slide horizontally past each other
16. the scientific theory that the Earth's lithosphere is composed of large, moving plates, causing phenomena like earthquakes, volcanoes, and mountain building