Across
- 5. occurs when two tectonic plates move away from each other
- 8. the upper layer of the earth's mantle, below the lithosphere, in which there is relatively low resistance to plastic flow and convection is thought to occur.
- 10. is the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
- 11. is the layer right outside of Earth
- 12. is the smallest layer on Earth
- 13. The second most layer
Down
- 1. is the rigid outer part of the earth, consisting of the crust and upper mantle
- 2. the movement of continents resulting from the motion of tectonic plates
- 3. Where tectonic plates converge, the one with thin oceanic crust subducts beneath the one capped by thick continental crust
- 4. a sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust or volcanic action
- 6. is a base-10 logarithmic scale, meaning each order of magnitude is 10 times more intensive than the last one
- 7. is the innermost layer of Earth
- 9. is gigantic pieces of the Earth's crust and uppermost mantle