Unit 1: Geology

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Across
  1. 5. A deep valley that forms where two plates move apart
  2. 8. The direct transfer of heat from one substance to another substance that it is touching.
  3. 11. The boundary between two tectonic plates that are moving away from each other
  4. 12. An underwater mountain chain where new ocean floor is formed
  5. 14. A dense sphere of solid iron and nickel at the center of Earth
  6. 15. Heat that is radiated or transmitted in the form of rays or waves or particles.
  7. 16. A plate boundary where two plates move past each other in opposite directions
  8. 18. At plate boundaries, Earth's crust is broken and rocks slip past each other in one of 3 types of plate boundaries (convergent, divergent, transform)
Down
  1. 1. A principle that geologic processes that occurred in the past can be explained by current geologic processes
  2. 2. At plate boundaries, Earth's crust is broken and rocks slip past each other in one of 3 types of plate boundaries (convergent, divergent, transform)
  3. 3. The transfer of thermal energy by the circulation or movement of a liquid or gas
  4. 4. A rigid layer made up of the uppermost part of the mantle and the crust.
  5. 6. The soft layer of the mantle on which the lithosphere floats.
  6. 7. The thin and solid outermost layer of the Earth above the mantle
  7. 8. The theory that the continents slowly move across Earth's surface.
  8. 9. A theory stating that the earth's surface is broken into plates that move.
  9. 10. The boundary between tectonic plates that are colliding
  10. 13. A layer of molten iron and nickel that surrounds the inner core of Earth
  11. 17. The layer of hot, flowing material between Earth's crust and core.