Across
- 3. When an oceanic plate runs into a continental plate and slides beneath it
- 7. What happens when two blocks of the earth suddenly slip past one another
- 8. A blanket of gases that surrounds Earth
- 11. The transformation of existing rock to new types of rock
- 12. Formed from the cooling and solidification of molten (melted) rock
- 14. Formed from pre-existing rocks or pieces of once-living organisms
- 15. Places where plates slide sideways past each other
Down
- 1. The solid, outer part of Earth
- 2. A hot, dense ball of (mostly) iron
- 4. This occurs when plates move towards each other and collide
- 5. Lies between Earth's dense, super-heated core and its thin outer layer, the crust
- 6. Occurs when two tectonic plates move away from each other.
- 9. Liquid, iron-nickel layer of the Earth between the solid inner core and lower mantle
- 10. The outermost shell of a terrestrial planet.
- 13. The third planet from the sun, the only planet on which life is known to exist