Science Final

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Anonymous
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84010
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Science Final
Updated:
2011-05-05 16:12:47
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Dr Bilbo
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Final Exam
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  1. __ rocks are formed as extreme heat and pressure changes the chemical composition and/or texture of the rocks.
    Metamorphic
  2. Changes in the __ field of the earth support the theoretical ideas related to the earth's layers and continental drift.
    magnetic
  3. Temperature __ as you move downward from the crust toward the center of the earth
    increases
  4. __ is the process by which rock is broken down into small particles (sediments) by the action of water, wind, and ice.
    Weathering
  5. The inner __ is the hottest and densest layer of the earth. It consists of solid iron and nickel.
    core
  6. __ rock is formed as small particles are compressed together by the weight of other particles piled on top of them
    Sedimentary
  7. __ are particles that are cemented together under pressure so that they form rock
    Sediments
  8. __- water consists of water that has been pulled downward by gravity through pores or spaces between particles or rocks until it collects above an impermeable layer of rock.
    Ground
  9. __ rock is formed as magma cools and becomes solid, either on (extrusive) or below (intrusive) the surface of the earth.
    Igneous
  10. Capillary action brings water back __ through small pores between soil particles after it has been pulled down by gravity.
    up
  11. __ is the rock that forms the ocean floor
    Basalt
  12. __ includes rain, sleet, and hailstones.
    Precipitation
  13. At a __ zone, a denser oceanic plate (sea floor) moves down under a continental plate.
    subduction
  14. Granite, which makes up the continental plates, has a __ density than basalt, which makes up the oceanic plates.
    lower
  15. The __ is the layer of the earth on which we live. It is made up mostly of sedimentary, igneous, and metamorphic rocks.
    crust
  16. Tectonic __ float and move on the molten upper part of the mantle according to recent theories.
    plates
  17. __ is the process by which particles or sediments are moved to other locations.
    Erosion
  18. According to the theory of plate tectonics, mountains may be formed when continents __.
    collide
  19. __ the rock which makes up the mantle; it is the material from which all of the types of rock are formed.
    Magna
  20. The __ core of the earth is formed from molten or plastic iron and nickel since it is very hot and not under enough pressure to solidify it.
    outer
  21. Pressure __ as you move downward toward the center of the earth.
    increases.
  22. __ is impermeable since it consists of particles that are smaller than sand particles and are tightly packed together with little space in between them.
    clay
  23. __ soil or rock allows water to move through it or collect in it since there are space between the particles or rocks.
    permeable
  24. __ is the process by which water vapor changes into liquid water; it is important in cloud formation.
    condensation
  25. __ tectonic plates are made of basalt; they are denser than the continental plates
    oceanic
  26. the __ is the upper part of the mantle that the tectonic plates float in; it is molten (plastic)
    aesthenosphere
  27. the parts of continents that fir together like pieces of a puzzle have similar __ deposits
    mineral
  28. __ currents occur in the mantle as pockets of hot, less dense magma rise to the aesthenosphere and move apart as they reach the crust.
    convection
  29. __ is the process by which liquid water changes into water vapor (gas) at temperatures lower than the boiling point.
    evaporation
  30. the theory of continental drift was devised by Alfred Wegner when he noticed that the continents of South America and Africa fit together like pieces of a __ when they are moved next to each other.
    puzzle
  31. the theory of __ drift was not widely accepted until the theory of plate tectonics provided a mechanism for the movement.
    continental
  32. an __ is an area of porous (permeable) rock that can store large amounts of water. The water is kept from moving downward y an impermeable layer of rock beneath it.
    aquifer
  33. heat produced by radioactive __ of elements deep inside of the earth is probably one of the main reasons for the increase in temperature as you move downward beneath the surface.
    decay
  34. the __ is the largest layer of the earth; it makes up about eighty percent of the volume of the earth.
    mantle
  35. the __ is the fairly thin layer. it varies from six to forty seven miles thick under the continents and is about three to five miles thick under the oceans
    crust
  36. when the parts of continents that fit together almost like pieces of a puzzle were investigated; scienctists found that they had similar __s
    fossil
  37. the distinct layers of the earth become __ as we move from the crust to the inner core.
    denser
  38. tectonic plates sometimes __ as they slide past each other building up
    bind.

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