Across
- 3. The slow movement of continents over time.
- 6. The innermost layer of the Earth
- 7. A tectonic plate shifting under another.
- 11. Scale that measures the magnitude of earthquakes
- 12. Part of the upper mantle, helps tectonic plates move.
- 13. A violent shaking of the ground.
Down
- 1. Thinnest layer of the Earth
- 2. The only liquid layer of the Earth
- 4. Broken up pieces of the lithosphere that cause earthquakes
- 5. Made from the crust and upper mantle
- 8. Tectonic plates collide into each other
- 9. Tectonic plates move away from each other.
- 10. The thickest layer of the Earth