Across
- 2. when 1 plate sinks under another
- 4. originator of continental drift theory
- 5. mountain range earthquake
- 9. when 2 plates come together
- 10. rift valleys; thinner crust forms
Down
- 1. theorized that convection occured within the Earth's mantle
- 3. seafloor spreading; new crust formation
- 6. when 2 plates move away from each other
- 7. magma plume rises up
- 8. 2 plates slip and grind each other