Download Horizontal 1. Earth`s innermost layer, which is mostly iron and

Horizontal
1. Earth’s innermost layer, which is mostly iron and includes the inner core & outer core.
6. Separate pieces of lithosphere that move on top of the asthenosphere.
8. The process by which new lithosphere is created at midocean ridges as older lithosphere
moves away.
10. The lowest portion of mantle, a zone of rigid rock.
13. The hypothesis that the world’s continents move slowly over Earth’s surface.
14. A global system of underwater mountains created by seafloor spreading.
15. Molten rock inside Earth.
19. Places where plates are pulling apart.
20. Places where tectonic plates slide along beside one another as they move.
21. Earth’s outermost structural layer.
23. A solid sphere of hot metal, mostly iron, and the center of Earth.
Vertical
2. Long, deep, steep trough in the seafloor where an oceanic plate sinks beneath an
overlying plate.
3. Earth’s surface layer, consisting of oceanic & continental crust.
4. Places where tectonic plates are coming together.
5. The study of the history, structure & natural processes of planet Earth.
7. a shell of hot, liquid metal beneath the mantle & above the inner core.
9. The sinking of oceanic lithosphere into the asthenosphere.
11. The region where an oceanic plate sinks into the asthenosphere at a convergent plate
boundary.
12. The theory that states that Earth’s lithosphere is divided into large plates that slowly
move around the globe.
16. A layer of weak, warm rock that flows slowly over geologic time.
17. A layer of thick, hot rock between the crust & core.
18. The Earth science that is concerned with the composition & structure of Earth’s interior.
22. The amount of mass an object or material has compared to its volume.
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