Across
- 4. the process by which oceanic crust sinks beneath continental crust at a convergent boundary
- 5. a landform formed by the collision of continental and continental plates
- 10. the soft layer of the mantle on which the lithosphere floats
- 13. the solid part of Earth
- 14. the currents responsible for plate movement
- 15. a crack in the Earth's crust
- 16. the layer of the stratosphere that protects us from the sun's harmful ultraviolet radiation
Down
- 1. the landmass that existed approximately 300 million years ago, when all continents were joined as one
- 2. the crust and the upper mantle
- 3. the strength of an earthquake
- 4. the instrument that records earthquake data
- 6. the lowest layer of Earth's atmosphere
- 7. a steep volcano created by high-viscosity lava
- 8. the point inside Earth's crust where an earthquake begins
- 9. tectonic plates that move towards each other
- 11. the plate boundary most responsible for earthquakes
- 12. a wider, flatter volcano created by low-viscosity lava