Across
- 3. Made of solid iron, nickel, and heaviest elements.
- 8. The slowest seismic wave.
- 11. For an ocean trench to form, one plate must be ___.
- 12. A boundary where mid-ocean ridges form.
- 14. When warm material becomes less dense and rises, cools, becomes more dense, and sinks.
- 15. Solid but flows like a liquid.
Down
- 1. The fastest seismic wave.
- 2. Mountains that form when two continental plates collide.
- 4. The place on the surface above where the earthquake starts.
- 5. Volcano chain that forms when two oceanic plates collide.
- 6. All types of seismic waves travel through this layer.
- 7. A recording of earthquake waves.
- 9. A boundary where plates collide.
- 10. The type of wave that bounces off the outer core when it reaches it.
- 11. The place where the magnetic field is created.
- 13. Volcano that forms in the middle of a plate