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Across 6. common rock salt 8. when relatively large spaces are between particles 11. solid material in the earth's crust 13. rocks formed when lava solidifies above the earth's surface 15. rocks that appear to have been molten in the past 16. fossils that extend through several layers of fossils 17. liquid fossil fuel 20. consists of the coarsest grade of clastic sedimentary rock (grains, pebbles, gravels) 24. metamorphosed from limestone 26. precipitates directly out of seawater 27. form from minerals dissolved in water 28. molten rock found anywhere beneath the earth's surface 29. rocks formed when lava solidifies below the earth's surface 30. liquids can pass thorough easily due to large spaces between particles 31. magma and lava that contains much silica

Down 1. type of sedimentary rock that appears to have fragments of rocks cemented togehter 2. a trace of a once living organism 3. magma and lava that have less silica and more magnesium and iron 4. difference in average of mineral crystals 5. column of rock layers that extends through time from earliest rocks to recently deposited rocks 7. fossils that "seemingly" link layers of sediment together in age. 9. any intrusive rock formation formed deep in the ground 10. Some fossils are this instead of transitional fossils between ape and man 12. rock that forms from moving water or wind that lays down massive amounts of eroded material 14. rocks that appear to have changed due to heat, pressure or exposure to hot fluids 17. shiny, black, glassy-looking extrusive igneous rock 18. minerals that crystallized out of liquid and settles as a solid 19. rocks that have a banded appearance 20. fossil fuel that formed from decayed plant and animal matter 21. fossil fuel that is believed to be a by produce from oil 22. metamorphosed from quartz sandstone 23. formed when evaporation of water leaves minerals behind 25. molten rock that flows onto the earth's surface