Across
- 4. so hot that it's liquid; made of molten rock
- 7. this type of convergent boundary makes folded mountains
- 10. a fault located in California
- 16. Japan had one of these a few years back
- 17. a igneous rock formed by lava cooling quickly
- 18. natural disaster that California has had a lot
- 20. the floor at the bottom of the ocean
Down
- 1. mountain that contains lava and ash
- 2. makes up most of the inside of the earth
- 3. solid; made up of iron and nickle
- 5. crust that is found under the ocean
- 6. thinest layer of the earth
- 8. the objects that hold up the continents
- 9. chambers that hold large amounts of magma
- 11. underneath the lithosphere
- 12. when a plate goes under another
- 13. holds the crust and the upper mantle
- 14. the super continent that was formed 300 million years ago
- 15. the plate that is subducted under North America
- 19. the ring of active volcanoes in the Pacific Ocean