Across
- 2. Made of basalt and gabbro
- 3. The study of the Earth
- 4. form when rock is forced beneath an overlying rock layer
- 5. Responsible for most of earth's feature
- 8. The Earth's outer layer made of solid rock
- 9. A bowl-like structure in the earth's surface
- 13. The tallest mountain on earth
- 16. The barrier between the upper and lower mantle
- 17. The second most common element in the earth
Down
- 1. The barrier that keeps the mantle and the core seperated
- 6. Float like rafts on the plastic rock of the upper mantle
- 7. The most abundant element in earth's crust
- 10. An arch-like structure in the earth's surface
- 11. Elevated landmasses that are higher than hills
- 12. Deposits of sand and mineral fragments
- 13. Reigon beneath the crust
- 14. waves Earthquake vibrations
- 15. Forms by the bending or buckling of rocks under great pressure