sebe
Across
- 2. major fracture of the earths crust in extreme western north America.
- 4. a type of igneous rock that forms when lava cools.
- 6. the outer most and solid layer on earth
- 9. a chian of valcanoes that runs around the earth.
- 12. the part of the mantle that's the outermost layer of earth that's made of tectonic plates.
- 13. a landform that rises above its surroundings
- 15. a narrow deep hole in the ocean floor
- 17. part of the mantle made out of the oceanic crust.
- 18. two or more big rocks the erupt lava out of it
- 20. part of the core that's a solid layer
- 21. the structure of earths crust
Down
- 1. sudden shaking of the ground
- 3. made up of the crust and upper mantle
- 5. semi solid layer of Earth's upper mantle
- 7. a place two tectonic plates slide against each other
- 8. a lowland area that forms when tectonic plates move apart
- 10. part of the core that is a liquid layer
- 11. a place where two tectonic plates move apart
- 14. a erupting rock the lava comes out of
- 16. a place where two tectonic plates move towards each other
- 19. a geological processes that occurs when one tectonic plate move beneath another, sinking into the earths mantle