Across
- 8. the oceanic crust consists of volcanic lava rock called _____
- 9. theory that says our sun burst one day and all our planets came form it
- 10. rocks are classified into ______ categories
- 11. study of celestial objects
- 12. _____ water cant support life
- 17. formed ont he surface of the earth, either on water or land
- 19. liquid core
- 22. mineral's h__n__ss. some minerals are soft
- 23. softest mineral
- 24. p__nc_ epoch
- 26. part of the mantle that flows
- 28. r____ era, in big bang theory
- 31. the mantle is 82% by ________
- 34. p_____ collision theory
- 35. minerals are _______ in origin
- 36. outermost layer of the earth
- 38. study of the universe as a whole
- 40. h_dr__ epoch
- 42. crunch theory that says the universe could collapse to the state where it began and then initiate another big bang
- 45. s____ collision theory
- 46. cloud g__ c____ theory
- 49. mineralogists also test a mineral for the color of its powder
- 50. thickest layer of the earth
- 51. hypothesis that says the sun and its planets supposedly condensed out of swirling eddies of cold, dark, interstellar clouds of gas and dust
- 52. minerals are building blocks of _____
- 53. the mantle is 68% by _____
Down
- 1. metamorphism where rocks undergo increased temperatures and pressures
- 2. the continental crust is composed mostly of _____
- 3. sediment is removed from its place of origin by running water or winds
- 4. state theory that says the univers is not changing over time
- 5. hardest mineral
- 6. m____ era, in big bang theory
- 7. igneous and sedimentary rocks that undergo intense heat and pressure resulting to complete change
- 12. rocks are classified as to how they are ______
- 13. many minerals have similar c__or
- 14. l_p__n epoch
- 15. cool, rigid, brittle
- 16. epoch where the sungularity expanded in big bang theory
- 18. the earth is i______d 23.5 degrees
- 20. disintegration of rocks into smaller pieces
- 21. g_l__t_c epoch
- 22. the big bang theory is credited to Edwin ____
- 25. clastic sediments are deposited
- 27. metamorphism where rocks are getting cooked
- 29. rocks are made up of ________ elements
- 30. minerals are _________ occuring
- 32. mineral's amount and quality of the light it reflects from its surface
- 33. boundary between solid lithosphere and liquid asthenosphere
- 37. second element in the universe
- 39. q_a_k epoch
- 41. the earths axis is ___ perpendicular to its orbital plane
- 43. ____ rocks are formed by the solidification of magma
- 44. theory that says planets were captured by the gravity of the sun
- 47. first element in the universe
- 48. solid core