Science CH 3

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Author:
Rayna
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285223
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Science CH 3
Updated:
2014-10-21 13:31:11
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Science
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Science
Description:
Science CH 3, Abeka Grade 8
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  1. Name a substance found naturally in the earth that has a crystalline structure.
    minerals
  2. specific gravity:
    mineral property ratio that indicates density
  3. Term for tendency of a mineral to break along certain planes.
    cleavage
  4. Largest group of minerals? (90% of earth's crust)
    silicate
  5. "fool's gold" mineral group that includes pyrite?
    sulfides
  6. Mineral group that contain carbon bonded to oxygen?
    carbonates
  7. Mineral group with compounds containing fluorine, chlorine, bromine, iodine, or astatine?
    halides
  8. The rarest, most durable, and most beautiful minerals?
    precious stones
  9. The branch of geology that deals with the identification and classification of minerals?
    mineralogy
  10. Element that occurs naturally in its pure form, uncombined with other elements?
    native element
  11. What is the name of a substance that is composed of only one type of atom?
    element
  12. Term that refers to the way light is reflected from the surface of a mineral crystal?
    luster
  13. Name of the scale used to measure a mineral's hardness?
    Mohs (scale)
  14. Term that describes a mineral that glows when exposed to ultraviolet light and continues to glow when a light is removed?
    phosphorescent  (***spelling***)
  15. Name for a metal mixture of iron and carbon?
    steel
  16. Name for what is used for radiation shielding, automobile batteries, and small arms ammunition?
    cooper
  17. Reddish-orange metal often used for electrical wiring?
    copper
  18. The most abundant metal in the earth's crust?
    aluminum
  19. White-gray metal more valuable than gold?
    platinum
  20. What are ruby and sapphire are forms of what?
    corundum
  21. Brass is an alloy mixture of what to metals?
    cooper & zinc
  22. Term for a metal mixture?
    alloy
  23. Beryl that has a deep green color?
    emerad
  24. Term for lab-created gemstones that have the same appearance and chemical content as natural gemstones?
    synthetic gemstones
  25. Term for a beautiful mineral prized for its hardness, color and "fire"?
    precious stone
  26. Most common igneous rock?
    basalt
  27. Hard, round sedimentary rock structures formed when minerals crystallize around a mineral fragment?
    concretions
  28. Igneous rock formed when magma began cooling slowly but finished more quickly.
    porphyritic
  29. Sedimentary rock made from mechanical sediments?
    clastic sedimentary rock
  30. Well-known chemical sedimentary rock?
    limestone
  31. What do you call the upper layers of ground removed when mining coal(surface mining)?
    overburden
  32. Term for fuels derived from the remains of once living things?
    fossil fuel
  33. What is another name for the substance called coal tar?
    bitumen
  34. Term for a single layer of sedimentary rock?
    stratum (or bed)
  35. Sedimentary rock that consists of smooth pebbles in hardened sand or clay?
    conglomerate rock
  36. Chemical sediments that result from the evaporation of water?
    evaporites
  37. Rocks that have a smooth, glasslike texture?
    amorphous
  38. Mining that uses a rotating drum that travels down a long track while grinding coal?
    longwall
  39. Name of the flat surfaces that crystals are generally characterized by?
    faces
  40. Any mineral that contains a valuable metallic element?
    ore
  41. Type of rock formed when preexisting rocks are altered by heat or pressure?
    metamorphic rock
  42. Type of rock formed when deposits or sand and mineral fragments are cemented together?
    sedimentary rock
  43. Type of rock formed when magma solidifies?
    igneous rock
  44. Aluminum is refined from what common mineral?
    bauxite
  45. Term for the change of one type of rock into a new type of rock?
    metamorphism
  46. Igneous rock with a smooth, glasslike texture; known as "volcanic glass"?
    obsidian
  47. Most common sedimentary rock?
    shale
  48. Organic sedimentary rock that is also called fossil fuel?
    coal
  49. Name for a bar of refined gold?
    bullion
  50. An alloy made of iron, carbon and nickel or chromium?
    stainless steel
  51. Geometric structures composed of atoms or molecules in an orderly arrangement?
    crystals
  52. What mineral test leaves a line f powder on a plate?
    streak test

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