MChambers Crossword

3. produced by cooling of volcanic lava, made primarily of the element’s silicon, oxygen, iron, aluminum, and magnesium.
5. made of fragments of igneous rock of shells of living organisms deposited by wind or water.
8. regions of high-energy ions in the magnetosphere.
11. plate tectonics sliding horizontally alongside each other.
14. the natural separate of differently dense materials over time due to gravity.
16. jamming together of plate tectonics.
18. largest part of earth’s interior.

1. how slow motions within the mantle of earth move large segments of the crust, resulting in drifting of continents, and other geological features.
2. a metric unit of length to 1,000 meters.
4. area where of two plates coming together, forcing one underneath.
6. any rock that has cooled from a molten state.
7. produced when high temperature or pressure alters igneous or sedimentary rock physically or chemically.
9. rocks made of silicon oxygen, makes up continental crust.
10. heat escapes from interior through upward flow of warmer material and slow sinking of earth, to a cooler region.
12. areas far from plate boundaries where heat is nevertheless rising from earth.
13. plate tectonics pulling away from each other.
15. light waves that bend.
17. study of earth’s crust and its history.