Who Am I? S6E5 Science Rocks

Transcription

1 Who Am I? S6E5 Science Rocks Chapter 2 Minerals and Rocks 1. I am naturally occurring, inorganic solid that has a crystal structure and a definite chemical composition. Who am I? 2. There are five characteristics that I must have. Who Am I? 3. I am formed by processes in the natural world. 4. I form naturally as molten material cools and hardens deep beneath the Earth s surface. 5. Materials made by people, like plastic, brick, glass, and steel. Who am I? _p I did not form from a once living thing. Who am I? 7. I form naturally in earth s crust, but I;m not a mineral because I came from a plant fossil. Who am I? 8. I am not plasma, a liquid or a gas. Who am I? 9. I am the repeating pattern of a mineral s particles that forms a solid. Who am I? 10. I have flat sides, called faces. Who am I? 11. I am a mineral particle that has sharp edges and corners. Who am I? 12. Almost all minerals are 13. Minerals always contains certain elements in definite proportions. Who am I? 14. Two or more of me make up a rock. Who am I? 15. I occur in nature in a pure form. I am,, and.p Geologist have found many of me. About how many have they found? 17. I am the most easily observed physical property of a mineral. Who am I? 18. I am the mineral test that doesn t require a tool. Who am l? 18. I am the mineral test that uses a mineral s powder to identify it. Who am I? 19. I am the mineral that has a gold color but leaves a greenish-brown powder. Who am i? _ 20. I am the mineral that has a gold color but leaves a golden yellow powder. Who am I? 21. How do you observe a streak? 22. I am the term used to describe how light is reflected from a mineral s surface. Who am I? 23. I am the mineral with a glassy luster. Who am I? 24. I am the mineral that has a lead ore and bright, shiny luster. Who am I? 25. We are some of the other terms to describe a mineral s luster. Who are we?,, And. 26. I am the mineral that has a waxy, greasy or pearly luster. Who am I? 26. I am the softest mineral on the scale. Who am I? 27. I am the mineral in pencils. Who am I? _ 28. I am the mineral with a very dull, submetallic luster. Who am I? _p.47_ 29. I am the mineral that has an earthy luster. 30. I am the scale that measures a mineral s hardness. Who am I? 31. I am the formula to calculate density. Who am I? 32. I am one of the best ways to identify a mineral. Who am I? 33. I am the scale that ranks ten minerals from to. p Each mineral has a characteristic density. What is density? 35. No matter what the size of the mineral, I always remain the same. Who am I? 36. You can feel my weight by picking me up. Who am I?

2 37. What tools do geologists use to measure density? _ 38. How do geologists determine a mineral s hardness? 39. I can scratch a mineral than me. 40. I can be scratched by a mineral than me. 41. I am the mineral that can be scratched by a steel knife, but I can t scratch window glass. Who am I? 42. I am the hardest mineral on the Mohs Hardness Scale. Who am I? 52. I describe what a mineral looks like when it breaks apart in an irregular way. Who am I? 53. Minerals that form rough, irregular surfaces when broken have an. 54. When quartz breaks, it creates me. Who am I? 55. Identify 4 minerals and their special properties a) b) c) d) 43. I am the softest known mineral. Who am I? 44. I am the mineral that flakes when a fingernail scratches me. Who am I? 45. I am the way a mineral breaks apart. Who am I? and. 46. I am the break that splits easily along flat surfaces. 47. I am the reason why minerals break apart more easily in one direction than in another. Who am I? p I can only be seen under a microscope. Who am I? 49. I am the mineral that has a different arrangement. Who am I? 50. I am the mineral that separates easily in only one direction, forming flat sheets. Who am I? 51. Most minerals don t break apart easily. They have _.

3 Name Date completed Rocks 1. I am the 3 observations that geologists use to study a rock sample. I am 2. I am made of a mixture of minerals. Who am I? 3. There are about minerals that make up most of the Earth s crust. 4. These minerals are called p I am what a rock is made of. Who am I? 6. I provide clues to what rock is made of, Who am I? 7. I am a light-colored rock. Do I have high or low silica content? Circle one. 8. I am a dark-colored rock. Do I have high or low silica content? Circle one. 9. I am an example of a light-colored rock. Who am I? 10. I am an example of a dark-colored rock. Who am I? 11. You can t see my mineral crystals because they are too small to be seen without a hand-lens. Who am I? 12. I am the least effective way to determine a rock s identity. _ 13. I am the look and feel of a rock s surface. Who am I? 14, Geologists describe rocks based on, and of the grains. 15. I am the rock that has a grainy pattern. I sound nice. Who am I? 16. What are the 3 types of rocks? a) b) c) 17. How a rock forms is called its p rocks form when magma or lava cools and hardens. 19. rocks form from other rocks that are changed by heat and pressure. 20. I am the type of rock that forms when pieces of rock are pressed and cemented together. Who am I? 21. I am the type of rock that forms very deep underground. 22. I form on or beneath Earth s surface. Who am I? 23. I am the type of rock that is formed from lava that erupted onto Earth s surface. Who am I? 24. I am one of the most common igneous rocks. Who am I? 25. I am the rock that forms much of the Earth s ocean floors. Who am I? p I am the type of igneous rock that is formed when magma hardened beneath the Earth s surface. Who am I? 27. I am the most abundant rock of this type on Earth s continents. Who am I? 28. I am the rock at the core of many mountain ranges. _ 29. I depend on a rocks size and texture. Who am I? 30. Some rocks have a texture like glass. Why? 31. Rapidly cooling lava forms me. Who am I? p Slowly cooling magma forms me. Who am I? 33. This type of igneous rock has a fine-grained or glassy texture. Who am I? 34. I am the rock that cooled very rapidly without forming crystals. Who am I? 35. I have a smooth, shiny texture like a thick piece of glass. Who am I? 36. I am the intrusive rock that looks like a gelatin dessert with chopped-up fruit mixed in. Who am I? 37. Most of the Earth s minerals contain me. Who am I? *The silica content of magma and lava affects the types of rocks that form. True or False (circle)

4 38. Lava forms dark-colored rocks are low/ high in silica. Circle one. 39. Magma that is high/low in silica forms light-colored rocks. Circle one. 40. Geologists study me under a microscope to determine p.60 Who am I? 41. I am made from igneous rocks to help people all throughout history. Who am I? 42. I am the rock used as a building material. Who am I? 42. I am the rock used to make buildings, kitchen counters, floors, and bridges. Who am I? 43. I am the igneous rock used for cleaning and polishing. Who am I? 44. I am used for cleaning because I am p I am the rock used by ancient native Americans to make sharp tools for cutting and scraping. Who am I? 46. Glass is formed from the mineral but is also in granite. 47. I am small, solid pieces of materials that come from rocks or living things. Who am I? 48. Shells, bones, leaves, stems and other remains of living things are called. 49. I am the rocks formed through a series of processes. _ 50. I am the destructive force that breaks up and wears away all the rocks on earth s surface. Who am I? _ 51. Destructive forces such as a) b) c) d) form sediment. *In erosion, running water, wind or ice loosen and carry away fragments of rock. True or False (circle) 52. I am the process by which sediment settles out of the water or wind carrying it sinking to the bottom of a lake or ocean. 53. I am the process that presses sediments together. 54. I am what presses down the layers, causing them to squeeze tightly together. Who am I? 55. I am the process where minerals dissolve and crystallize and glue sediment together. Who am I?,,. 56. I am the type of sedimentary rock that forms when rock fragments are squeezed together. Who am I? 57. I am the type of rock that forms from sand on beaches, the ocean floor, and riverbeds. 58. I am the rock that contains rock fragments of different sizes. Who am I? 59. I am the type of rock that forms from particles of other rocks. Who am I? 60. We are the two most important organic, sedimentary rocks. We and 61. Slowly (millions of years) compaction and cementation changes sediment of dead shells (skeletons of sea animals) into me. Who am I? p I am what s made after the mineral halite evaporates. 63. I am the rock used in building the White House in Washington, DC. Who am I? 64. I am the type of rock that is classified according to the arrangement of the grains that make up the rocks. Who am I? 65. I am what causes the changes in the shape and size of rock grains and mineral crystals. Who am I? 66. What causes mineral grains of rocks to line up in flat parallel layers? Who am I? 66. I am the Metamorphic rock whereby the grains are arranged in parallel layers or bands. Who am I? 67. I am a very common metamorphic rock. I change from the sedimentary rock shale into a new rock. Who am I? 68. I am the rock whose mineral bands are randomly arranged. Who am I? 69. and are the two most important metamorphic rocks. 70. is formed when is subjected to extreme heat and pressure beneath the surface. 71. is useful for flooring, outdoor walkways, stone building trims. P Identify the processes to form rocks in the Rock Cycle.

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