Unit 4 Crossword

4. A fracture or zone between two blocks of rock.
7. Denser, weaker layer beneath the lithosphere mantle.
8. Equilibrium exists between parts of Earth's crust, behaving as if it consists of blocks that float on the underlying mantle.
10. Rock Formed from the cooling and solidification of molten rock.
12. Range of underwater volcanoes that wrap around the globe.
13. Theory explaining how Earth's subterranean movements create major landforms.
15. Study of acient pole positions
17. Boundary caused when two plates come together.
19. Deformation of material due to stress

1. Process that affects the shape, size, or volume of an area of the Earth's crust.
2. Process at work at divergent plate boundaries, leading to a new ocean floors creation.
3. Boundary occuring when two techtonic plates move away from eachother.
5. Rocks formed from pre-existing ones or pieces of once-living organisms.
6. A boundary at which plates slide sideways past eachother.
9. Geologic structure formed by layers of beds of bent/folded rocks.
11. Rigid outer part of the Earth; consists of the crust and upper mantle.
14. Curved chain of volcanic islands, located at a tectonic plates margin.
16. Movement of continents resulting from tectonic plates motion.
18. Cycle in which the three rock types transform into each other.