Across
- 2. Coal mining process that uses a rotating drum traveling down a long tunnel
- 7. Any type of rock that forms form solidified magma
- 9. The law that states that undisturbed rock lays in the order they were layed down
- 12. Poorest quality of coal
- 14. Layered formation of coal
- 15. Rock formed when magma cools underground instead of extruding
- 16. Black material that was formed rapidly at Mt. St. Helens
- 17. Rock that is formed when magma extrudes from the ground and cools
- 18. Rock made up of layers like leaves of the book
- 19. Chemical sediment that forms from the evaporation of water
- 20. That coarse grained thing that people put on counter tops
- 21. Mining machine that uses a large rotating steel drum with “teeth”
Down
- 1. Sedimentary rock that consists of imbedded pebbles
- 3. Coarse grained intrusive rock
- 4. Sand, clay, or rock fragments that are transported by a physical means
- 5. Sedimentary rock formed from fragments of rock
- 6. Process when rocks are baked by magma
- 8. Map that illustrates the location and structure of the earths material
- 9. Rock consisting of 50% calcium carbonate
- 10. Rock that forms when limestone is hardened by extreme heat or pressure
- 11. Hard, round structure that forms when materials settle out of water
- 13. Nonrenewable fuel/ Coal is an example