Across
- 3. boundary where 2 plates collide
- 5. a valley created through the divergent boundary
- 6. a zone created by different density of plates
- 8. a layer under Earth's crust
Down
- 1. boundary where 2 plates move away from eachother
- 2. currents found in the upper mantle.
- 4. pieces of Earth's crust
- 7. molten rock