Across
- 3. the center of earth (really hot)
- 5. the uper layer of earths mantle
- 7. a system of detection of objects under water
- 10. when rock solidifies while lined up with earths magnetic field
- 11. violent sacking of the ground
- 13. center of an earthquake
- 16. when rocks are squashed together
- 17. when two plates collide and one dives under the other
- 18. a volcanic rock
Down
- 1. a point on earths surface above the focus of an earthquake
- 2. when two plates move away from each-other
- 4. an elastic wave produced by earthquakes
- 6. hot fluid within the earths crust
- 8. outer part of earth consist of crust and mantle
- 9. when rocks are slowly pulled apart
- 12. came up with the theory of seafloor spreading
- 14. a mountain made of cooled magma
- 15. is where two plates slip sideways next to eachother