Across
- 5. the liquid outer portion of Earth's core, composed primarily of iron and nickel.
- 7. large areas of rock that make up Earth's crust and move across the mantle
- 8. The rocks of Earth's crust that make up the base of the continents.
- 10. the soft and plastic layer in Earth's upper mantle, just below the lithosphere.
- 11. the portion of Earth's crust that makes up the ocean floor and is generally denser and thinner than continental crust.
- 12. a single bed of sedimentary rock, generally consisting of one kind of matter representing continuous deposition.
- 13. the process by which new oceanic lithosphere forms at mid-ocean ridges as tectonic plates pull away from each other
- 14. any water that collects on the surface of Earth
- 15. the layer of solid rock between Earth’s crust and core
- 16. the science guy
- 17. a tectonic plate boundary at which two tectonic plates move away from each other
- 18. the solid, inner portion of Earth's core, composed of an alloy of iron, nickel, and other heavy elements.
- 19. When soil is moved from one location to another by wind or water.
- 20. a supercontinent that existed 300 million years ago.
- 21. the study of rocks and Earth
Down
- 1. the part of Earth which is composed mostly of rocks; the crust and outer mantle.
- 2. a German climatologist. Came up with the theory of continental drift.
- 3. the sinking of an oceanic plate beneath a plate of lesser density at a convergent boundary
- 4. Mr. McCullough's pet (2011-2014)
- 6. a tectonic plate boundary at which two tectonic plates move toward each other, causing collisions and subduction zones.
- 8. the movement of Earth's continents relative to each other.
- 9. a tectonic plate boundary along which plates slide horizontally past one another in opposite directions
