Plate tectonics
Across
- 2. boundary, when two tectonic plates move away from eachother
- 5. A rupture in the crust
- 7. Wegner, The person who came up with the theory of continental drift.
- 8. boundary, When two plates come together
- 9. the rigid outer part of the earth, consisting of the crust and upper mantle.
- 10. liquid that comes out of a volcano
Down
- 1. 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.
- 3. The solid, bulky part of the Earth's core.
- 4. a sudden and violent shaking of the ground
- 6. drift, the gradual movement of the continents across the earth's surface through geological time